./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/pthread-theta/unwind2-100.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-theta/unwind2-100.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 7857262d4d8d027aa598d94064d6edf426fece06c8ec09601338aa41711d7f37 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 09:57:56,243 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 09:57:56,308 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-19 09:57:56,313 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 09:57:56,314 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 09:57:56,349 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 09:57:56,350 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 09:57:56,350 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 09:57:56,351 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 09:57:56,351 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 09:57:56,352 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 09:57:56,352 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 09:57:56,353 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 09:57:56,353 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 09:57:56,367 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 09:57:56,368 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 09:57:56,369 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 09:57:56,371 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 09:57:56,371 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 09:57:56,371 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 09:57:56,371 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-19 09:57:56,373 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-19 09:57:56,373 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-19 09:57:56,373 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 09:57:56,373 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-19 09:57:56,374 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 09:57:56,374 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-19 09:57:56,374 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 09:57:56,374 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 09:57:56,375 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 09:57:56,375 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 09:57:56,375 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 09:57:56,376 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 09:57:56,376 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 09:57:56,376 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 09:57:56,377 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 09:57:56,377 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 09:57:56,378 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 09:57:56,378 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 09:57:56,378 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 09:57:56,378 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 09:57:56,379 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 09:57:56,379 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7857262d4d8d027aa598d94064d6edf426fece06c8ec09601338aa41711d7f37 [2024-11-19 09:57:56,628 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 09:57:56,654 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 09:57:56,656 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 09:57:56,658 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 09:57:56,658 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 09:57:56,659 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-theta/unwind2-100.i [2024-11-19 09:57:58,187 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 09:57:58,423 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 09:57:58,423 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-theta/unwind2-100.i [2024-11-19 09:57:58,441 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2de7d9c67/ba2166a0ec45459cb71f13ef5c4d8338/FLAGfecda6cff [2024-11-19 09:57:58,454 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2de7d9c67/ba2166a0ec45459cb71f13ef5c4d8338 [2024-11-19 09:57:58,457 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 09:57:58,458 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 09:57:58,459 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 09:57:58,459 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 09:57:58,465 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 09:57:58,466 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 09:57:58" (1/1) ... [2024-11-19 09:57:58,467 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@440e1ce2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:57:58, skipping insertion in model container [2024-11-19 09:57:58,467 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 09:57:58" (1/1) ... [2024-11-19 09:57:58,514 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 09:57:58,922 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 09:57:58,933 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 09:57:58,976 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 09:57:59,017 INFO L204 MainTranslator]: Completed translation [2024-11-19 09:57:59,017 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:57:59 WrapperNode [2024-11-19 09:57:59,017 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 09:57:59,019 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 09:57:59,019 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 09:57:59,020 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 09:57:59,027 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:57:59" (1/1) ... [2024-11-19 09:57:59,045 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:57:59" (1/1) ... [2024-11-19 09:57:59,072 INFO L138 Inliner]: procedures = 169, calls = 12, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 85 [2024-11-19 09:57:59,073 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 09:57:59,074 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 09:57:59,075 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 09:57:59,075 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 09:57:59,085 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:57:59" (1/1) ... [2024-11-19 09:57:59,086 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:57:59" (1/1) ... [2024-11-19 09:57:59,088 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:57:59" (1/1) ... [2024-11-19 09:57:59,109 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 09:57:59,110 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:57:59" (1/1) ... [2024-11-19 09:57:59,110 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:57:59" (1/1) ... [2024-11-19 09:57:59,117 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:57:59" (1/1) ... [2024-11-19 09:57:59,123 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:57:59" (1/1) ... [2024-11-19 09:57:59,127 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:57:59" (1/1) ... [2024-11-19 09:57:59,128 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:57:59" (1/1) ... [2024-11-19 09:57:59,133 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 09:57:59,134 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 09:57:59,138 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 09:57:59,138 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 09:57:59,139 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:57:59" (1/1) ... [2024-11-19 09:57:59,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 09:57:59,157 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 09:57:59,186 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 09:57:59,189 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 09:57:59,239 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 09:57:59,239 INFO L130 BoogieDeclarations]: Found specification of procedure f1 [2024-11-19 09:57:59,239 INFO L138 BoogieDeclarations]: Found implementation of procedure f1 [2024-11-19 09:57:59,239 INFO L130 BoogieDeclarations]: Found specification of procedure f2 [2024-11-19 09:57:59,239 INFO L138 BoogieDeclarations]: Found implementation of procedure f2 [2024-11-19 09:57:59,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 09:57:59,240 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 09:57:59,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 09:57:59,241 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 09:57:59,382 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 09:57:59,384 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 09:57:59,526 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-19 09:57:59,526 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 09:57:59,653 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 09:57:59,653 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-19 09:57:59,654 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 09:57:59 BoogieIcfgContainer [2024-11-19 09:57:59,654 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 09:57:59,657 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 09:57:59,657 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 09:57:59,661 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 09:57:59,662 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 09:57:58" (1/3) ... [2024-11-19 09:57:59,662 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59ae6ba6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 09:57:59, skipping insertion in model container [2024-11-19 09:57:59,663 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:57:59" (2/3) ... [2024-11-19 09:57:59,664 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59ae6ba6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 09:57:59, skipping insertion in model container [2024-11-19 09:57:59,664 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 09:57:59" (3/3) ... [2024-11-19 09:57:59,665 INFO L112 eAbstractionObserver]: Analyzing ICFG unwind2-100.i [2024-11-19 09:57:59,681 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 09:57:59,682 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-11-19 09:57:59,682 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-19 09:57:59,735 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-19 09:57:59,770 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 39 places, 38 transitions, 90 flow [2024-11-19 09:57:59,793 INFO L124 PetriNetUnfolderBase]: 6/36 cut-off events. [2024-11-19 09:57:59,793 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-19 09:57:59,797 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45 conditions, 36 events. 6/36 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 53 event pairs, 0 based on Foata normal form. 0/27 useless extension candidates. Maximal degree in co-relation 31. Up to 2 conditions per place. [2024-11-19 09:57:59,798 INFO L82 GeneralOperation]: Start removeDead. Operand has 39 places, 38 transitions, 90 flow [2024-11-19 09:57:59,801 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 36 places, 35 transitions, 82 flow [2024-11-19 09:57:59,814 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 09:57:59,824 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;@6601b756, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 09:57:59,824 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-11-19 09:57:59,835 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 09:57:59,839 INFO L124 PetriNetUnfolderBase]: 4/22 cut-off events. [2024-11-19 09:57:59,839 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-19 09:57:59,840 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:57:59,840 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:57:59,841 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting f1Err0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-19 09:57:59,849 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:57:59,849 INFO L85 PathProgramCache]: Analyzing trace with hash 338354967, now seen corresponding path program 1 times [2024-11-19 09:57:59,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:57:59,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217021511] [2024-11-19 09:57:59,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:57:59,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:58:00,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:58:00,276 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 09:58:00,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:58:00,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217021511] [2024-11-19 09:58:00,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [217021511] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:58:00,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:58:00,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 09:58:00,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560690240] [2024-11-19 09:58:00,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:58:00,290 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 09:58:00,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:58:00,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 09:58:00,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 09:58:00,334 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 38 [2024-11-19 09:58:00,337 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 35 transitions, 82 flow. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 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 09:58:00,337 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:58:00,337 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 38 [2024-11-19 09:58:00,339 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:58:00,680 INFO L124 PetriNetUnfolderBase]: 287/602 cut-off events. [2024-11-19 09:58:00,680 INFO L125 PetriNetUnfolderBase]: For 23/23 co-relation queries the response was YES. [2024-11-19 09:58:00,687 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1128 conditions, 602 events. 287/602 cut-off events. For 23/23 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 3097 event pairs, 42 based on Foata normal form. 112/658 useless extension candidates. Maximal degree in co-relation 1048. Up to 215 conditions per place. [2024-11-19 09:58:00,692 INFO L140 encePairwiseOnDemand]: 27/38 looper letters, 58 selfloop transitions, 8 changer transitions 0/74 dead transitions. [2024-11-19 09:58:00,692 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 74 transitions, 307 flow [2024-11-19 09:58:00,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 09:58:00,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-19 09:58:00,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 152 transitions. [2024-11-19 09:58:00,707 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5714285714285714 [2024-11-19 09:58:00,709 INFO L175 Difference]: Start difference. First operand has 36 places, 35 transitions, 82 flow. Second operand 7 states and 152 transitions. [2024-11-19 09:58:00,709 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 74 transitions, 307 flow [2024-11-19 09:58:00,712 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 74 transitions, 289 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-19 09:58:00,715 INFO L231 Difference]: Finished difference. Result has 39 places, 34 transitions, 111 flow [2024-11-19 09:58:00,716 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=111, PETRI_PLACES=39, PETRI_TRANSITIONS=34} [2024-11-19 09:58:00,721 INFO L277 CegarLoopForPetriNet]: 36 programPoint places, 3 predicate places. [2024-11-19 09:58:00,721 INFO L471 AbstractCegarLoop]: Abstraction has has 39 places, 34 transitions, 111 flow [2024-11-19 09:58:00,722 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 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 09:58:00,722 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:58:00,722 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:58:00,722 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 09:58:00,723 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting f1Err0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-19 09:58:00,723 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:58:00,723 INFO L85 PathProgramCache]: Analyzing trace with hash 1898083594, now seen corresponding path program 1 times [2024-11-19 09:58:00,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:58:00,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108241077] [2024-11-19 09:58:00,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:58:00,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:58:00,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:58:00,908 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:58:00,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:58:00,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108241077] [2024-11-19 09:58:00,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1108241077] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 09:58:00,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [217701102] [2024-11-19 09:58:00,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:58:00,910 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:58:00,910 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 09:58:00,913 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 09:58:00,918 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 09:58:00,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:58:00,993 INFO L255 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-19 09:58:00,998 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 09:58:01,093 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:58:01,093 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 09:58:01,167 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:58:01,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [217701102] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 09:58:01,168 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 09:58:01,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2024-11-19 09:58:01,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398227784] [2024-11-19 09:58:01,170 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 09:58:01,170 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-19 09:58:01,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:58:01,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-19 09:58:01,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2024-11-19 09:58:01,183 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 38 [2024-11-19 09:58:01,184 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 34 transitions, 111 flow. Second operand has 14 states, 14 states have (on average 11.285714285714286) internal successors, (158), 14 states have internal predecessors, (158), 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 09:58:01,184 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:58:01,185 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 38 [2024-11-19 09:58:01,186 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:58:01,672 INFO L124 PetriNetUnfolderBase]: 401/812 cut-off events. [2024-11-19 09:58:01,672 INFO L125 PetriNetUnfolderBase]: For 169/169 co-relation queries the response was YES. [2024-11-19 09:58:01,676 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1945 conditions, 812 events. 401/812 cut-off events. For 169/169 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 4255 event pairs, 42 based on Foata normal form. 0/742 useless extension candidates. Maximal degree in co-relation 747. Up to 215 conditions per place. [2024-11-19 09:58:01,681 INFO L140 encePairwiseOnDemand]: 31/38 looper letters, 103 selfloop transitions, 17 changer transitions 0/128 dead transitions. [2024-11-19 09:58:01,681 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 128 transitions, 592 flow [2024-11-19 09:58:01,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-19 09:58:01,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-19 09:58:01,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 256 transitions. [2024-11-19 09:58:01,684 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5182186234817814 [2024-11-19 09:58:01,685 INFO L175 Difference]: Start difference. First operand has 39 places, 34 transitions, 111 flow. Second operand 13 states and 256 transitions. [2024-11-19 09:58:01,685 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 128 transitions, 592 flow [2024-11-19 09:58:01,689 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 128 transitions, 578 flow, removed 2 selfloop flow, removed 3 redundant places. [2024-11-19 09:58:01,691 INFO L231 Difference]: Finished difference. Result has 54 places, 44 transitions, 222 flow [2024-11-19 09:58:01,691 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=222, PETRI_PLACES=54, PETRI_TRANSITIONS=44} [2024-11-19 09:58:01,692 INFO L277 CegarLoopForPetriNet]: 36 programPoint places, 18 predicate places. [2024-11-19 09:58:01,692 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 44 transitions, 222 flow [2024-11-19 09:58:01,693 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 11.285714285714286) internal successors, (158), 14 states have internal predecessors, (158), 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 09:58:01,693 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:58:01,693 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:58:01,713 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-19 09:58:01,894 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:58:01,894 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting f2Err0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-19 09:58:01,895 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:58:01,895 INFO L85 PathProgramCache]: Analyzing trace with hash 84955400, now seen corresponding path program 1 times [2024-11-19 09:58:01,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:58:01,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196680328] [2024-11-19 09:58:01,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:58:01,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:58:01,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:58:02,003 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 09:58:02,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:58:02,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196680328] [2024-11-19 09:58:02,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196680328] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:58:02,004 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:58:02,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 09:58:02,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688190150] [2024-11-19 09:58:02,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:58:02,005 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 09:58:02,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:58:02,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 09:58:02,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 09:58:02,010 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 38 [2024-11-19 09:58:02,010 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 44 transitions, 222 flow. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 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 09:58:02,011 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:58:02,011 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 38 [2024-11-19 09:58:02,011 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:58:02,241 INFO L124 PetriNetUnfolderBase]: 463/950 cut-off events. [2024-11-19 09:58:02,241 INFO L125 PetriNetUnfolderBase]: For 1491/1491 co-relation queries the response was YES. [2024-11-19 09:58:02,244 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2673 conditions, 950 events. 463/950 cut-off events. For 1491/1491 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 5114 event pairs, 134 based on Foata normal form. 0/904 useless extension candidates. Maximal degree in co-relation 1652. Up to 322 conditions per place. [2024-11-19 09:58:02,249 INFO L140 encePairwiseOnDemand]: 31/38 looper letters, 75 selfloop transitions, 13 changer transitions 0/96 dead transitions. [2024-11-19 09:58:02,250 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 96 transitions, 703 flow [2024-11-19 09:58:02,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 09:58:02,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-19 09:58:02,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 135 transitions. [2024-11-19 09:58:02,253 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5075187969924813 [2024-11-19 09:58:02,254 INFO L175 Difference]: Start difference. First operand has 54 places, 44 transitions, 222 flow. Second operand 7 states and 135 transitions. [2024-11-19 09:58:02,255 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 96 transitions, 703 flow [2024-11-19 09:58:02,268 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 96 transitions, 583 flow, removed 45 selfloop flow, removed 5 redundant places. [2024-11-19 09:58:02,270 INFO L231 Difference]: Finished difference. Result has 58 places, 49 transitions, 241 flow [2024-11-19 09:58:02,271 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=171, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=241, PETRI_PLACES=58, PETRI_TRANSITIONS=49} [2024-11-19 09:58:02,271 INFO L277 CegarLoopForPetriNet]: 36 programPoint places, 22 predicate places. [2024-11-19 09:58:02,272 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 49 transitions, 241 flow [2024-11-19 09:58:02,273 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 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 09:58:02,273 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:58:02,273 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:58:02,273 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 09:58:02,273 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting f2Err0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-19 09:58:02,274 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:58:02,274 INFO L85 PathProgramCache]: Analyzing trace with hash -1662335674, now seen corresponding path program 1 times [2024-11-19 09:58:02,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:58:02,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529110248] [2024-11-19 09:58:02,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:58:02,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:58:02,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:58:02,412 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:58:02,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:58:02,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529110248] [2024-11-19 09:58:02,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529110248] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 09:58:02,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1569816] [2024-11-19 09:58:02,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:58:02,413 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:58:02,413 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 09:58:02,415 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 09:58:02,417 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-19 09:58:02,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:58:02,497 INFO L255 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-19 09:58:02,498 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 09:58:02,544 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:58:02,545 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 09:58:02,606 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:58:02,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1569816] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 09:58:02,606 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 09:58:02,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2024-11-19 09:58:02,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758333004] [2024-11-19 09:58:02,607 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 09:58:02,608 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-19 09:58:02,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:58:02,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-19 09:58:02,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2024-11-19 09:58:02,625 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 38 [2024-11-19 09:58:02,626 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 49 transitions, 241 flow. Second operand has 14 states, 14 states have (on average 11.571428571428571) internal successors, (162), 14 states have internal predecessors, (162), 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 09:58:02,626 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:58:02,626 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 38 [2024-11-19 09:58:02,627 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:58:03,025 INFO L124 PetriNetUnfolderBase]: 649/1274 cut-off events. [2024-11-19 09:58:03,026 INFO L125 PetriNetUnfolderBase]: For 2153/2153 co-relation queries the response was YES. [2024-11-19 09:58:03,031 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3859 conditions, 1274 events. 649/1274 cut-off events. For 2153/2153 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 6921 event pairs, 134 based on Foata normal form. 0/1230 useless extension candidates. Maximal degree in co-relation 2272. Up to 322 conditions per place. [2024-11-19 09:58:03,038 INFO L140 encePairwiseOnDemand]: 31/38 looper letters, 144 selfloop transitions, 22 changer transitions 0/174 dead transitions. [2024-11-19 09:58:03,038 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 174 transitions, 1207 flow [2024-11-19 09:58:03,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-19 09:58:03,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-19 09:58:03,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 253 transitions. [2024-11-19 09:58:03,040 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5121457489878543 [2024-11-19 09:58:03,040 INFO L175 Difference]: Start difference. First operand has 58 places, 49 transitions, 241 flow. Second operand 13 states and 253 transitions. [2024-11-19 09:58:03,040 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 174 transitions, 1207 flow [2024-11-19 09:58:03,051 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 174 transitions, 1188 flow, removed 2 selfloop flow, removed 3 redundant places. [2024-11-19 09:58:03,054 INFO L231 Difference]: Finished difference. Result has 73 places, 59 transitions, 366 flow [2024-11-19 09:58:03,055 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=225, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=366, PETRI_PLACES=73, PETRI_TRANSITIONS=59} [2024-11-19 09:58:03,056 INFO L277 CegarLoopForPetriNet]: 36 programPoint places, 37 predicate places. [2024-11-19 09:58:03,056 INFO L471 AbstractCegarLoop]: Abstraction has has 73 places, 59 transitions, 366 flow [2024-11-19 09:58:03,057 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 11.571428571428571) internal successors, (162), 14 states have internal predecessors, (162), 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 09:58:03,057 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:58:03,057 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:58:03,075 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-19 09:58:03,257 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2024-11-19 09:58:03,258 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting f1Err0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-19 09:58:03,258 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:58:03,259 INFO L85 PathProgramCache]: Analyzing trace with hash -1032604834, now seen corresponding path program 1 times [2024-11-19 09:58:03,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:58:03,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442357033] [2024-11-19 09:58:03,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:58:03,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:58:03,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:58:03,351 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 09:58:03,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:58:03,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442357033] [2024-11-19 09:58:03,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442357033] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:58:03,352 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:58:03,352 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 09:58:03,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716040002] [2024-11-19 09:58:03,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:58:03,353 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 09:58:03,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:58:03,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 09:58:03,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 09:58:03,364 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 38 [2024-11-19 09:58:03,364 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 59 transitions, 366 flow. Second operand has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:58:03,365 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:58:03,365 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 38 [2024-11-19 09:58:03,365 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:58:03,605 INFO L124 PetriNetUnfolderBase]: 676/1341 cut-off events. [2024-11-19 09:58:03,605 INFO L125 PetriNetUnfolderBase]: For 4442/4442 co-relation queries the response was YES. [2024-11-19 09:58:03,610 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4668 conditions, 1341 events. 676/1341 cut-off events. For 4442/4442 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 7399 event pairs, 170 based on Foata normal form. 18/1357 useless extension candidates. Maximal degree in co-relation 3002. Up to 519 conditions per place. [2024-11-19 09:58:03,617 INFO L140 encePairwiseOnDemand]: 31/38 looper letters, 70 selfloop transitions, 15 changer transitions 0/93 dead transitions. [2024-11-19 09:58:03,617 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 93 transitions, 744 flow [2024-11-19 09:58:03,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 09:58:03,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 09:58:03,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 113 transitions. [2024-11-19 09:58:03,619 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4956140350877193 [2024-11-19 09:58:03,619 INFO L175 Difference]: Start difference. First operand has 73 places, 59 transitions, 366 flow. Second operand 6 states and 113 transitions. [2024-11-19 09:58:03,619 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 93 transitions, 744 flow [2024-11-19 09:58:03,634 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 93 transitions, 666 flow, removed 27 selfloop flow, removed 5 redundant places. [2024-11-19 09:58:03,636 INFO L231 Difference]: Finished difference. Result has 74 places, 60 transitions, 354 flow [2024-11-19 09:58:03,636 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=310, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=354, PETRI_PLACES=74, PETRI_TRANSITIONS=60} [2024-11-19 09:58:03,637 INFO L277 CegarLoopForPetriNet]: 36 programPoint places, 38 predicate places. [2024-11-19 09:58:03,637 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 60 transitions, 354 flow [2024-11-19 09:58:03,637 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:58:03,637 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:58:03,637 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:58:03,638 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 09:58:03,638 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting f2Err0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-19 09:58:03,638 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:58:03,638 INFO L85 PathProgramCache]: Analyzing trace with hash 1116409153, now seen corresponding path program 1 times [2024-11-19 09:58:03,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:58:03,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454879569] [2024-11-19 09:58:03,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:58:03,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:58:03,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:58:03,723 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 09:58:03,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:58:03,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454879569] [2024-11-19 09:58:03,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454879569] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:58:03,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:58:03,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 09:58:03,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721788191] [2024-11-19 09:58:03,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:58:03,725 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 09:58:03,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:58:03,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 09:58:03,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 09:58:03,735 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 38 [2024-11-19 09:58:03,735 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 60 transitions, 354 flow. Second operand has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:58:03,735 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:58:03,735 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 38 [2024-11-19 09:58:03,735 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:58:03,964 INFO L124 PetriNetUnfolderBase]: 704/1402 cut-off events. [2024-11-19 09:58:03,965 INFO L125 PetriNetUnfolderBase]: For 4672/4672 co-relation queries the response was YES. [2024-11-19 09:58:03,971 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4577 conditions, 1402 events. 704/1402 cut-off events. For 4672/4672 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 7898 event pairs, 166 based on Foata normal form. 19/1415 useless extension candidates. Maximal degree in co-relation 2907. Up to 559 conditions per place. [2024-11-19 09:58:03,978 INFO L140 encePairwiseOnDemand]: 31/38 looper letters, 75 selfloop transitions, 15 changer transitions 0/98 dead transitions. [2024-11-19 09:58:03,978 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 98 transitions, 740 flow [2024-11-19 09:58:03,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 09:58:03,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 09:58:03,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 117 transitions. [2024-11-19 09:58:03,980 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5131578947368421 [2024-11-19 09:58:03,980 INFO L175 Difference]: Start difference. First operand has 74 places, 60 transitions, 354 flow. Second operand 6 states and 117 transitions. [2024-11-19 09:58:03,980 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 98 transitions, 740 flow [2024-11-19 09:58:03,993 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 98 transitions, 710 flow, removed 5 selfloop flow, removed 3 redundant places. [2024-11-19 09:58:03,994 INFO L231 Difference]: Finished difference. Result has 77 places, 61 transitions, 373 flow [2024-11-19 09:58:03,995 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=329, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=373, PETRI_PLACES=77, PETRI_TRANSITIONS=61} [2024-11-19 09:58:03,996 INFO L277 CegarLoopForPetriNet]: 36 programPoint places, 41 predicate places. [2024-11-19 09:58:03,997 INFO L471 AbstractCegarLoop]: Abstraction has has 77 places, 61 transitions, 373 flow [2024-11-19 09:58:03,997 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:58:03,997 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:58:03,997 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:58:03,998 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 09:58:03,998 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting f1Err0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-19 09:58:03,998 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:58:03,999 INFO L85 PathProgramCache]: Analyzing trace with hash 1585006551, now seen corresponding path program 2 times [2024-11-19 09:58:03,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:58:03,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27084862] [2024-11-19 09:58:03,999 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 09:58:03,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:58:04,012 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 09:58:04,013 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:58:04,148 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:58:04,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:58:04,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27084862] [2024-11-19 09:58:04,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [27084862] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 09:58:04,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1437059067] [2024-11-19 09:58:04,148 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 09:58:04,149 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:58:04,149 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 09:58:04,152 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 09:58:04,153 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-19 09:58:04,210 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 09:58:04,210 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:58:04,211 INFO L255 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-19 09:58:04,212 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 09:58:04,313 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:58:04,313 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 09:58:04,431 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:58:04,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1437059067] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 09:58:04,432 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 09:58:04,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 22 [2024-11-19 09:58:04,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501801832] [2024-11-19 09:58:04,432 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 09:58:04,432 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-19 09:58:04,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:58:04,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-19 09:58:04,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=361, Unknown=0, NotChecked=0, Total=506 [2024-11-19 09:58:04,441 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 38 [2024-11-19 09:58:04,442 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 61 transitions, 373 flow. Second operand has 23 states, 23 states have (on average 11.173913043478262) internal successors, (257), 23 states have internal predecessors, (257), 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 09:58:04,442 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:58:04,442 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 38 [2024-11-19 09:58:04,442 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:58:05,341 INFO L124 PetriNetUnfolderBase]: 1094/2068 cut-off events. [2024-11-19 09:58:05,341 INFO L125 PetriNetUnfolderBase]: For 15606/15606 co-relation queries the response was YES. [2024-11-19 09:58:05,349 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7436 conditions, 2068 events. 1094/2068 cut-off events. For 15606/15606 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 11360 event pairs, 143 based on Foata normal form. 264/2330 useless extension candidates. Maximal degree in co-relation 5588. Up to 385 conditions per place. [2024-11-19 09:58:05,362 INFO L140 encePairwiseOnDemand]: 31/38 looper letters, 297 selfloop transitions, 40 changer transitions 0/345 dead transitions. [2024-11-19 09:58:05,363 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 345 transitions, 2689 flow [2024-11-19 09:58:05,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-19 09:58:05,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2024-11-19 09:58:05,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 490 transitions. [2024-11-19 09:58:05,366 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5157894736842106 [2024-11-19 09:58:05,366 INFO L175 Difference]: Start difference. First operand has 77 places, 61 transitions, 373 flow. Second operand 25 states and 490 transitions. [2024-11-19 09:58:05,366 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 345 transitions, 2689 flow [2024-11-19 09:58:05,400 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 345 transitions, 2558 flow, removed 55 selfloop flow, removed 3 redundant places. [2024-11-19 09:58:05,404 INFO L231 Difference]: Finished difference. Result has 110 places, 79 transitions, 660 flow [2024-11-19 09:58:05,407 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=348, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=660, PETRI_PLACES=110, PETRI_TRANSITIONS=79} [2024-11-19 09:58:05,408 INFO L277 CegarLoopForPetriNet]: 36 programPoint places, 74 predicate places. [2024-11-19 09:58:05,408 INFO L471 AbstractCegarLoop]: Abstraction has has 110 places, 79 transitions, 660 flow [2024-11-19 09:58:05,408 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 11.173913043478262) internal successors, (257), 23 states have internal predecessors, (257), 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 09:58:05,408 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:58:05,408 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:58:05,427 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-19 09:58:05,609 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:58:05,610 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting f1Err0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-19 09:58:05,610 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:58:05,610 INFO L85 PathProgramCache]: Analyzing trace with hash -1091497147, now seen corresponding path program 1 times [2024-11-19 09:58:05,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:58:05,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141248719] [2024-11-19 09:58:05,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:58:05,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:58:05,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:58:05,712 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:58:05,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:58:05,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141248719] [2024-11-19 09:58:05,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1141248719] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 09:58:05,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1221106536] [2024-11-19 09:58:05,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:58:05,713 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:58:05,713 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 09:58:05,718 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 09:58:05,719 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-19 09:58:05,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:58:05,777 INFO L255 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-19 09:58:05,778 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 09:58:05,827 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:58:05,828 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 09:58:05,889 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:58:05,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1221106536] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 09:58:05,890 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 09:58:05,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2024-11-19 09:58:05,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482407534] [2024-11-19 09:58:05,890 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 09:58:05,890 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-19 09:58:05,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:58:05,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-19 09:58:05,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2024-11-19 09:58:05,897 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 38 [2024-11-19 09:58:05,897 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 79 transitions, 660 flow. Second operand has 14 states, 14 states have (on average 11.857142857142858) internal successors, (166), 14 states have internal predecessors, (166), 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 09:58:05,897 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:58:05,898 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 38 [2024-11-19 09:58:05,898 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:58:06,362 INFO L124 PetriNetUnfolderBase]: 1175/2227 cut-off events. [2024-11-19 09:58:06,362 INFO L125 PetriNetUnfolderBase]: For 24710/24710 co-relation queries the response was YES. [2024-11-19 09:58:06,374 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9303 conditions, 2227 events. 1175/2227 cut-off events. For 24710/24710 co-relation queries the response was YES. Maximal size of possible extension queue 86. Compared 12628 event pairs, 265 based on Foata normal form. 54/2279 useless extension candidates. Maximal degree in co-relation 6912. Up to 876 conditions per place. [2024-11-19 09:58:06,387 INFO L140 encePairwiseOnDemand]: 31/38 looper letters, 119 selfloop transitions, 24 changer transitions 0/151 dead transitions. [2024-11-19 09:58:06,387 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 151 transitions, 1475 flow [2024-11-19 09:58:06,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 09:58:06,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-19 09:58:06,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 166 transitions. [2024-11-19 09:58:06,389 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4853801169590643 [2024-11-19 09:58:06,389 INFO L175 Difference]: Start difference. First operand has 110 places, 79 transitions, 660 flow. Second operand 9 states and 166 transitions. [2024-11-19 09:58:06,389 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 151 transitions, 1475 flow [2024-11-19 09:58:06,462 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 151 transitions, 1235 flow, removed 84 selfloop flow, removed 12 redundant places. [2024-11-19 09:58:06,464 INFO L231 Difference]: Finished difference. Result has 109 places, 82 transitions, 584 flow [2024-11-19 09:58:06,464 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=492, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=584, PETRI_PLACES=109, PETRI_TRANSITIONS=82} [2024-11-19 09:58:06,465 INFO L277 CegarLoopForPetriNet]: 36 programPoint places, 73 predicate places. [2024-11-19 09:58:06,465 INFO L471 AbstractCegarLoop]: Abstraction has has 109 places, 82 transitions, 584 flow [2024-11-19 09:58:06,466 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 11.857142857142858) internal successors, (166), 14 states have internal predecessors, (166), 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 09:58:06,466 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:58:06,466 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:58:06,483 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-19 09:58:06,667 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:58:06,667 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting f2Err0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-19 09:58:06,667 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:58:06,667 INFO L85 PathProgramCache]: Analyzing trace with hash -1678074481, now seen corresponding path program 1 times [2024-11-19 09:58:06,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:58:06,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301096461] [2024-11-19 09:58:06,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:58:06,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:58:06,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:58:06,736 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:58:06,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:58:06,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301096461] [2024-11-19 09:58:06,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [301096461] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 09:58:06,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1498618440] [2024-11-19 09:58:06,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:58:06,737 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:58:06,737 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 09:58:06,739 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 09:58:06,740 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-19 09:58:06,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:58:06,800 INFO L255 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-19 09:58:06,801 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 09:58:06,847 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:58:06,848 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 09:58:06,904 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:58:06,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1498618440] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 09:58:06,905 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 09:58:06,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2024-11-19 09:58:06,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030118238] [2024-11-19 09:58:06,905 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 09:58:06,906 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-19 09:58:06,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:58:06,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-19 09:58:06,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2024-11-19 09:58:06,912 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 38 [2024-11-19 09:58:06,913 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 82 transitions, 584 flow. Second operand has 14 states, 14 states have (on average 11.857142857142858) internal successors, (166), 14 states have internal predecessors, (166), 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 09:58:06,913 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:58:06,913 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 38 [2024-11-19 09:58:06,913 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:58:07,387 INFO L124 PetriNetUnfolderBase]: 1313/2448 cut-off events. [2024-11-19 09:58:07,388 INFO L125 PetriNetUnfolderBase]: For 21106/21106 co-relation queries the response was YES. [2024-11-19 09:58:07,402 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9203 conditions, 2448 events. 1313/2448 cut-off events. For 21106/21106 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 13879 event pairs, 146 based on Foata normal form. 93/2539 useless extension candidates. Maximal degree in co-relation 6370. Up to 964 conditions per place. [2024-11-19 09:58:07,419 INFO L140 encePairwiseOnDemand]: 31/38 looper letters, 147 selfloop transitions, 24 changer transitions 0/179 dead transitions. [2024-11-19 09:58:07,422 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 179 transitions, 1582 flow [2024-11-19 09:58:07,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 09:58:07,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-19 09:58:07,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 173 transitions. [2024-11-19 09:58:07,424 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5058479532163743 [2024-11-19 09:58:07,424 INFO L175 Difference]: Start difference. First operand has 109 places, 82 transitions, 584 flow. Second operand 9 states and 173 transitions. [2024-11-19 09:58:07,425 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 179 transitions, 1582 flow [2024-11-19 09:58:07,531 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 179 transitions, 1504 flow, removed 15 selfloop flow, removed 5 redundant places. [2024-11-19 09:58:07,533 INFO L231 Difference]: Finished difference. Result has 115 places, 85 transitions, 604 flow [2024-11-19 09:58:07,534 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=512, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=604, PETRI_PLACES=115, PETRI_TRANSITIONS=85} [2024-11-19 09:58:07,535 INFO L277 CegarLoopForPetriNet]: 36 programPoint places, 79 predicate places. [2024-11-19 09:58:07,535 INFO L471 AbstractCegarLoop]: Abstraction has has 115 places, 85 transitions, 604 flow [2024-11-19 09:58:07,536 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 11.857142857142858) internal successors, (166), 14 states have internal predecessors, (166), 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 09:58:07,536 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:58:07,536 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:58:07,549 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-19 09:58:07,738 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:58:07,738 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting f2Err0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-19 09:58:07,739 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:58:07,739 INFO L85 PathProgramCache]: Analyzing trace with hash 1646948488, now seen corresponding path program 2 times [2024-11-19 09:58:07,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:58:07,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343324595] [2024-11-19 09:58:07,739 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 09:58:07,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:58:07,752 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 09:58:07,752 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:58:07,866 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:58:07,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:58:07,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343324595] [2024-11-19 09:58:07,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343324595] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 09:58:07,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1919264224] [2024-11-19 09:58:07,867 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 09:58:07,867 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:58:07,867 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 09:58:07,869 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 09:58:07,871 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-19 09:58:07,928 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 09:58:07,929 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:58:07,930 INFO L255 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-19 09:58:07,931 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 09:58:08,011 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:58:08,012 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 09:58:08,124 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:58:08,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1919264224] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 09:58:08,126 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 09:58:08,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 22 [2024-11-19 09:58:08,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150980976] [2024-11-19 09:58:08,127 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 09:58:08,127 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-19 09:58:08,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:58:08,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-19 09:58:08,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=361, Unknown=0, NotChecked=0, Total=506 [2024-11-19 09:58:08,135 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 38 [2024-11-19 09:58:08,136 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 85 transitions, 604 flow. Second operand has 23 states, 23 states have (on average 11.347826086956522) internal successors, (261), 23 states have internal predecessors, (261), 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 09:58:08,136 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:58:08,136 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 38 [2024-11-19 09:58:08,136 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:58:09,125 INFO L124 PetriNetUnfolderBase]: 1973/3637 cut-off events. [2024-11-19 09:58:09,126 INFO L125 PetriNetUnfolderBase]: For 59123/59123 co-relation queries the response was YES. [2024-11-19 09:58:09,142 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14469 conditions, 3637 events. 1973/3637 cut-off events. For 59123/59123 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 21286 event pairs, 348 based on Foata normal form. 444/4079 useless extension candidates. Maximal degree in co-relation 11311. Up to 822 conditions per place. [2024-11-19 09:58:09,160 INFO L140 encePairwiseOnDemand]: 31/38 looper letters, 468 selfloop transitions, 46 changer transitions 0/522 dead transitions. [2024-11-19 09:58:09,161 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 522 transitions, 4531 flow [2024-11-19 09:58:09,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-19 09:58:09,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2024-11-19 09:58:09,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 487 transitions. [2024-11-19 09:58:09,163 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5126315789473684 [2024-11-19 09:58:09,163 INFO L175 Difference]: Start difference. First operand has 115 places, 85 transitions, 604 flow. Second operand 25 states and 487 transitions. [2024-11-19 09:58:09,163 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 522 transitions, 4531 flow [2024-11-19 09:58:09,270 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 522 transitions, 4421 flow, removed 15 selfloop flow, removed 5 redundant places. [2024-11-19 09:58:09,274 INFO L231 Difference]: Finished difference. Result has 146 places, 103 transitions, 868 flow [2024-11-19 09:58:09,274 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=532, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=868, PETRI_PLACES=146, PETRI_TRANSITIONS=103} [2024-11-19 09:58:09,275 INFO L277 CegarLoopForPetriNet]: 36 programPoint places, 110 predicate places. [2024-11-19 09:58:09,275 INFO L471 AbstractCegarLoop]: Abstraction has has 146 places, 103 transitions, 868 flow [2024-11-19 09:58:09,275 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 11.347826086956522) internal successors, (261), 23 states have internal predecessors, (261), 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 09:58:09,276 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:58:09,276 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:58:09,293 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-19 09:58:09,479 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:58:09,480 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting f1Err0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-19 09:58:09,481 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:58:09,481 INFO L85 PathProgramCache]: Analyzing trace with hash 532847774, now seen corresponding path program 2 times [2024-11-19 09:58:09,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:58:09,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674781866] [2024-11-19 09:58:09,481 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 09:58:09,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:58:09,492 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 09:58:09,493 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:58:09,599 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:58:09,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:58:09,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674781866] [2024-11-19 09:58:09,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [674781866] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 09:58:09,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [368629738] [2024-11-19 09:58:09,600 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 09:58:09,601 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:58:09,601 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 09:58:09,602 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 09:58:09,604 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-19 09:58:09,659 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 09:58:09,659 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:58:09,660 INFO L255 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-19 09:58:09,661 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 09:58:09,739 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:58:09,740 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 09:58:09,847 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:58:09,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [368629738] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 09:58:09,847 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 09:58:09,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 22 [2024-11-19 09:58:09,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884351666] [2024-11-19 09:58:09,849 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 09:58:09,849 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-19 09:58:09,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:58:09,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-19 09:58:09,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=361, Unknown=0, NotChecked=0, Total=506 [2024-11-19 09:58:09,863 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 38 [2024-11-19 09:58:09,864 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 103 transitions, 868 flow. Second operand has 23 states, 23 states have (on average 11.521739130434783) internal successors, (265), 23 states have internal predecessors, (265), 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 09:58:09,864 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:58:09,864 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 38 [2024-11-19 09:58:09,864 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:58:10,869 INFO L124 PetriNetUnfolderBase]: 2243/4051 cut-off events. [2024-11-19 09:58:10,869 INFO L125 PetriNetUnfolderBase]: For 93649/93649 co-relation queries the response was YES. [2024-11-19 09:58:10,889 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18744 conditions, 4051 events. 2243/4051 cut-off events. For 93649/93649 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 23698 event pairs, 280 based on Foata normal form. 180/4229 useless extension candidates. Maximal degree in co-relation 14006. Up to 1581 conditions per place. [2024-11-19 09:58:10,907 INFO L140 encePairwiseOnDemand]: 31/38 looper letters, 254 selfloop transitions, 36 changer transitions 0/298 dead transitions. [2024-11-19 09:58:10,907 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 298 transitions, 3465 flow [2024-11-19 09:58:10,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-19 09:58:10,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-19 09:58:10,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 271 transitions. [2024-11-19 09:58:10,913 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.47543859649122805 [2024-11-19 09:58:10,913 INFO L175 Difference]: Start difference. First operand has 146 places, 103 transitions, 868 flow. Second operand 15 states and 271 transitions. [2024-11-19 09:58:10,913 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 160 places, 298 transitions, 3465 flow [2024-11-19 09:58:11,110 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 298 transitions, 2673 flow, removed 312 selfloop flow, removed 12 redundant places. [2024-11-19 09:58:11,114 INFO L231 Difference]: Finished difference. Result has 154 places, 109 transitions, 846 flow [2024-11-19 09:58:11,114 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=676, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=846, PETRI_PLACES=154, PETRI_TRANSITIONS=109} [2024-11-19 09:58:11,115 INFO L277 CegarLoopForPetriNet]: 36 programPoint places, 118 predicate places. [2024-11-19 09:58:11,115 INFO L471 AbstractCegarLoop]: Abstraction has has 154 places, 109 transitions, 846 flow [2024-11-19 09:58:11,115 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 11.521739130434783) internal successors, (265), 23 states have internal predecessors, (265), 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 09:58:11,115 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:58:11,115 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:58:11,133 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-19 09:58:11,319 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:58:11,320 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting f2Err0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-19 09:58:11,320 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:58:11,320 INFO L85 PathProgramCache]: Analyzing trace with hash -1358272447, now seen corresponding path program 2 times [2024-11-19 09:58:11,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:58:11,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387945393] [2024-11-19 09:58:11,321 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 09:58:11,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:58:11,335 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 09:58:11,336 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:58:11,443 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:58:11,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:58:11,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387945393] [2024-11-19 09:58:11,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [387945393] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 09:58:11,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1515295602] [2024-11-19 09:58:11,444 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 09:58:11,444 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:58:11,444 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 09:58:11,447 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 09:58:11,449 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-19 09:58:11,506 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 09:58:11,506 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:58:11,507 INFO L255 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-19 09:58:11,508 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 09:58:11,587 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:58:11,587 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 09:58:11,686 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:58:11,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1515295602] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 09:58:11,687 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 09:58:11,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 22 [2024-11-19 09:58:11,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65617539] [2024-11-19 09:58:11,687 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 09:58:11,687 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-19 09:58:11,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:58:11,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-19 09:58:11,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=361, Unknown=0, NotChecked=0, Total=506 [2024-11-19 09:58:11,782 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 38 [2024-11-19 09:58:11,783 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 109 transitions, 846 flow. Second operand has 23 states, 23 states have (on average 11.521739130434783) internal successors, (265), 23 states have internal predecessors, (265), 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 09:58:11,783 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:58:11,783 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 38 [2024-11-19 09:58:11,783 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:58:12,732 INFO L124 PetriNetUnfolderBase]: 2519/4497 cut-off events. [2024-11-19 09:58:12,732 INFO L125 PetriNetUnfolderBase]: For 111006/111006 co-relation queries the response was YES. [2024-11-19 09:58:12,753 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19191 conditions, 4497 events. 2519/4497 cut-off events. For 111006/111006 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 26423 event pairs, 296 based on Foata normal form. 186/4683 useless extension candidates. Maximal degree in co-relation 14315. Up to 2026 conditions per place. [2024-11-19 09:58:12,772 INFO L140 encePairwiseOnDemand]: 31/38 looper letters, 273 selfloop transitions, 36 changer transitions 0/317 dead transitions. [2024-11-19 09:58:12,772 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 317 transitions, 3056 flow [2024-11-19 09:58:12,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-19 09:58:12,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-19 09:58:12,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 284 transitions. [2024-11-19 09:58:12,774 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4982456140350877 [2024-11-19 09:58:12,774 INFO L175 Difference]: Start difference. First operand has 154 places, 109 transitions, 846 flow. Second operand 15 states and 284 transitions. [2024-11-19 09:58:12,774 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 317 transitions, 3056 flow [2024-11-19 09:58:13,040 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 317 transitions, 2916 flow, removed 37 selfloop flow, removed 8 redundant places. [2024-11-19 09:58:13,043 INFO L231 Difference]: Finished difference. Result has 166 places, 115 transitions, 882 flow [2024-11-19 09:58:13,044 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=712, PETRI_DIFFERENCE_MINUEND_PLACES=146, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=882, PETRI_PLACES=166, PETRI_TRANSITIONS=115} [2024-11-19 09:58:13,044 INFO L277 CegarLoopForPetriNet]: 36 programPoint places, 130 predicate places. [2024-11-19 09:58:13,044 INFO L471 AbstractCegarLoop]: Abstraction has has 166 places, 115 transitions, 882 flow [2024-11-19 09:58:13,045 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 11.521739130434783) internal successors, (265), 23 states have internal predecessors, (265), 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 09:58:13,045 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:58:13,045 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:58:13,057 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-19 09:58:13,245 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-19 09:58:13,246 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting f1Err0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-19 09:58:13,246 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:58:13,246 INFO L85 PathProgramCache]: Analyzing trace with hash 386214647, now seen corresponding path program 3 times [2024-11-19 09:58:13,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:58:13,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754665493] [2024-11-19 09:58:13,247 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 09:58:13,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:58:13,256 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-19 09:58:13,256 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:58:13,382 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-19 09:58:13,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:58:13,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754665493] [2024-11-19 09:58:13,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [754665493] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 09:58:13,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1924185712] [2024-11-19 09:58:13,383 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 09:58:13,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:58:13,383 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 09:58:13,386 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 09:58:13,388 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-19 09:58:13,445 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-19 09:58:13,445 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:58:13,446 INFO L255 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-19 09:58:13,448 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 09:58:13,494 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-19 09:58:13,494 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 09:58:13,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1924185712] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:58:13,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 09:58:13,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 8 [2024-11-19 09:58:13,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100903474] [2024-11-19 09:58:13,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:58:13,497 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 09:58:13,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:58:13,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 09:58:13,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-19 09:58:13,506 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 38 [2024-11-19 09:58:13,507 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 166 places, 115 transitions, 882 flow. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 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 09:58:13,507 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:58:13,507 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 38 [2024-11-19 09:58:13,507 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:58:14,211 INFO L124 PetriNetUnfolderBase]: 2586/4680 cut-off events. [2024-11-19 09:58:14,211 INFO L125 PetriNetUnfolderBase]: For 100961/100961 co-relation queries the response was YES. [2024-11-19 09:58:14,233 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20470 conditions, 4680 events. 2586/4680 cut-off events. For 100961/100961 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 27837 event pairs, 698 based on Foata normal form. 86/4764 useless extension candidates. Maximal degree in co-relation 14894. Up to 1617 conditions per place. [2024-11-19 09:58:14,250 INFO L140 encePairwiseOnDemand]: 31/38 looper letters, 228 selfloop transitions, 32 changer transitions 0/268 dead transitions. [2024-11-19 09:58:14,250 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 268 transitions, 2785 flow [2024-11-19 09:58:14,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 09:58:14,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-19 09:58:14,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 184 transitions. [2024-11-19 09:58:14,252 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5380116959064327 [2024-11-19 09:58:14,252 INFO L175 Difference]: Start difference. First operand has 166 places, 115 transitions, 882 flow. Second operand 9 states and 184 transitions. [2024-11-19 09:58:14,252 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 174 places, 268 transitions, 2785 flow [2024-11-19 09:58:14,660 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 268 transitions, 2395 flow, removed 148 selfloop flow, removed 8 redundant places. [2024-11-19 09:58:14,663 INFO L231 Difference]: Finished difference. Result has 168 places, 121 transitions, 974 flow [2024-11-19 09:58:14,663 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=748, PETRI_DIFFERENCE_MINUEND_PLACES=158, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=974, PETRI_PLACES=168, PETRI_TRANSITIONS=121} [2024-11-19 09:58:14,664 INFO L277 CegarLoopForPetriNet]: 36 programPoint places, 132 predicate places. [2024-11-19 09:58:14,664 INFO L471 AbstractCegarLoop]: Abstraction has has 168 places, 121 transitions, 974 flow [2024-11-19 09:58:14,664 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 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 09:58:14,664 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:58:14,664 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:58:14,681 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-19 09:58:14,865 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-19 09:58:14,865 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting f2Err0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-19 09:58:14,866 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:58:14,866 INFO L85 PathProgramCache]: Analyzing trace with hash 1968412616, now seen corresponding path program 3 times [2024-11-19 09:58:14,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:58:14,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152361101] [2024-11-19 09:58:14,866 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 09:58:14,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:58:14,874 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-19 09:58:14,874 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:58:14,934 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-19 09:58:14,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:58:14,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152361101] [2024-11-19 09:58:14,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152361101] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 09:58:14,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1034475359] [2024-11-19 09:58:14,935 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 09:58:14,935 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:58:14,936 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 09:58:14,937 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 09:58:14,938 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-19 09:58:14,992 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-19 09:58:14,993 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:58:14,993 INFO L255 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-19 09:58:14,994 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 09:58:15,035 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-19 09:58:15,036 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 09:58:15,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1034475359] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:58:15,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 09:58:15,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 8 [2024-11-19 09:58:15,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066657631] [2024-11-19 09:58:15,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:58:15,037 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 09:58:15,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:58:15,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 09:58:15,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-19 09:58:15,044 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 38 [2024-11-19 09:58:15,044 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 121 transitions, 974 flow. Second operand has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:58:15,044 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:58:15,044 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 38 [2024-11-19 09:58:15,045 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:58:15,655 INFO L124 PetriNetUnfolderBase]: 2623/4641 cut-off events. [2024-11-19 09:58:15,655 INFO L125 PetriNetUnfolderBase]: For 117692/117692 co-relation queries the response was YES. [2024-11-19 09:58:15,676 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20868 conditions, 4641 events. 2623/4641 cut-off events. For 117692/117692 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 26853 event pairs, 680 based on Foata normal form. 91/4730 useless extension candidates. Maximal degree in co-relation 19281. Up to 1736 conditions per place. [2024-11-19 09:58:15,690 INFO L140 encePairwiseOnDemand]: 31/38 looper letters, 229 selfloop transitions, 34 changer transitions 0/271 dead transitions. [2024-11-19 09:58:15,690 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 176 places, 271 transitions, 2824 flow [2024-11-19 09:58:15,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 09:58:15,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-19 09:58:15,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 177 transitions. [2024-11-19 09:58:15,691 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5175438596491229 [2024-11-19 09:58:15,691 INFO L175 Difference]: Start difference. First operand has 168 places, 121 transitions, 974 flow. Second operand 9 states and 177 transitions. [2024-11-19 09:58:15,691 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 176 places, 271 transitions, 2824 flow [2024-11-19 09:58:16,083 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 174 places, 271 transitions, 2370 flow, removed 220 selfloop flow, removed 2 redundant places. [2024-11-19 09:58:16,086 INFO L231 Difference]: Finished difference. Result has 176 places, 127 transitions, 1093 flow [2024-11-19 09:58:16,086 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=859, PETRI_DIFFERENCE_MINUEND_PLACES=166, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1093, PETRI_PLACES=176, PETRI_TRANSITIONS=127} [2024-11-19 09:58:16,087 INFO L277 CegarLoopForPetriNet]: 36 programPoint places, 140 predicate places. [2024-11-19 09:58:16,087 INFO L471 AbstractCegarLoop]: Abstraction has has 176 places, 127 transitions, 1093 flow [2024-11-19 09:58:16,087 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:58:16,087 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:58:16,087 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:58:16,099 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-19 09:58:16,287 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-19 09:58:16,288 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting f1Err0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-19 09:58:16,288 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:58:16,288 INFO L85 PathProgramCache]: Analyzing trace with hash -1476948354, now seen corresponding path program 3 times [2024-11-19 09:58:16,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:58:16,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138397593] [2024-11-19 09:58:16,289 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 09:58:16,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:58:16,307 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-11-19 09:58:16,307 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:58:16,536 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:58:16,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:58:16,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138397593] [2024-11-19 09:58:16,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1138397593] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 09:58:16,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [374717856] [2024-11-19 09:58:16,537 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 09:58:16,538 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:58:16,538 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 09:58:16,540 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 09:58:16,541 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-19 09:58:16,613 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-11-19 09:58:16,613 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:58:16,614 INFO L255 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-19 09:58:16,615 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 09:58:16,819 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:58:16,820 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 09:58:17,093 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:58:17,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [374717856] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 09:58:17,093 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 09:58:17,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 40 [2024-11-19 09:58:17,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919596539] [2024-11-19 09:58:17,093 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 09:58:17,094 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2024-11-19 09:58:17,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:58:17,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2024-11-19 09:58:17,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=565, Invalid=1075, Unknown=0, NotChecked=0, Total=1640 [2024-11-19 09:58:17,100 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 38 [2024-11-19 09:58:17,101 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 127 transitions, 1093 flow. Second operand has 41 states, 41 states have (on average 11.292682926829269) internal successors, (463), 41 states have internal predecessors, (463), 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 09:58:17,101 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:58:17,101 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 38 [2024-11-19 09:58:17,101 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:58:18,376 INFO L124 PetriNetUnfolderBase]: 3127/5509 cut-off events. [2024-11-19 09:58:18,376 INFO L125 PetriNetUnfolderBase]: For 105308/105308 co-relation queries the response was YES. [2024-11-19 09:58:18,402 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23814 conditions, 5509 events. 3127/5509 cut-off events. For 105308/105308 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 31303 event pairs, 540 based on Foata normal form. 336/5845 useless extension candidates. Maximal degree in co-relation 22952. Up to 2128 conditions per place. [2024-11-19 09:58:18,418 INFO L140 encePairwiseOnDemand]: 31/38 looper letters, 431 selfloop transitions, 52 changer transitions 0/491 dead transitions. [2024-11-19 09:58:18,418 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 202 places, 491 transitions, 5182 flow [2024-11-19 09:58:18,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-19 09:58:18,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2024-11-19 09:58:18,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 456 transitions. [2024-11-19 09:58:18,420 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4444444444444444 [2024-11-19 09:58:18,420 INFO L175 Difference]: Start difference. First operand has 176 places, 127 transitions, 1093 flow. Second operand 27 states and 456 transitions. [2024-11-19 09:58:18,420 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 202 places, 491 transitions, 5182 flow [2024-11-19 09:58:18,646 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 200 places, 491 transitions, 4187 flow, removed 473 selfloop flow, removed 2 redundant places. [2024-11-19 09:58:18,650 INFO L231 Difference]: Finished difference. Result has 212 places, 139 transitions, 1276 flow [2024-11-19 09:58:18,650 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=978, PETRI_DIFFERENCE_MINUEND_PLACES=174, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=27, PETRI_FLOW=1276, PETRI_PLACES=212, PETRI_TRANSITIONS=139} [2024-11-19 09:58:18,651 INFO L277 CegarLoopForPetriNet]: 36 programPoint places, 176 predicate places. [2024-11-19 09:58:18,651 INFO L471 AbstractCegarLoop]: Abstraction has has 212 places, 139 transitions, 1276 flow [2024-11-19 09:58:18,651 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 41 states have (on average 11.292682926829269) internal successors, (463), 41 states have internal predecessors, (463), 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 09:58:18,652 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:58:18,652 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:58:18,664 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-19 09:58:18,852 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-19 09:58:18,853 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting f2Err0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-19 09:58:18,853 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:58:18,853 INFO L85 PathProgramCache]: Analyzing trace with hash -1132519231, now seen corresponding path program 3 times [2024-11-19 09:58:18,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:58:18,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437997122] [2024-11-19 09:58:18,853 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 09:58:18,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:58:18,874 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-11-19 09:58:18,874 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:58:19,082 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:58:19,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:58:19,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437997122] [2024-11-19 09:58:19,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [437997122] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 09:58:19,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1618445561] [2024-11-19 09:58:19,082 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 09:58:19,083 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:58:19,083 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 09:58:19,084 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 09:58:19,085 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-19 09:58:19,135 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-11-19 09:58:19,135 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:58:19,136 INFO L255 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-19 09:58:19,137 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 09:58:19,289 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:58:19,289 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 09:58:19,537 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:58:19,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1618445561] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 09:58:19,537 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 09:58:19,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 40 [2024-11-19 09:58:19,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214158762] [2024-11-19 09:58:19,538 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 09:58:19,538 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2024-11-19 09:58:19,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:58:19,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2024-11-19 09:58:19,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=565, Invalid=1075, Unknown=0, NotChecked=0, Total=1640 [2024-11-19 09:58:19,547 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 38 [2024-11-19 09:58:19,547 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 212 places, 139 transitions, 1276 flow. Second operand has 41 states, 41 states have (on average 11.292682926829269) internal successors, (463), 41 states have internal predecessors, (463), 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 09:58:19,547 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:58:19,547 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 38 [2024-11-19 09:58:19,547 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:58:20,904 INFO L124 PetriNetUnfolderBase]: 3643/6378 cut-off events. [2024-11-19 09:58:20,905 INFO L125 PetriNetUnfolderBase]: For 52603/52603 co-relation queries the response was YES. [2024-11-19 09:58:20,961 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26721 conditions, 6378 events. 3643/6378 cut-off events. For 52603/52603 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 36418 event pairs, 812 based on Foata normal form. 348/6726 useless extension candidates. Maximal degree in co-relation 25884. Up to 2971 conditions per place. [2024-11-19 09:58:20,981 INFO L140 encePairwiseOnDemand]: 31/38 looper letters, 468 selfloop transitions, 52 changer transitions 0/528 dead transitions. [2024-11-19 09:58:20,981 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 238 places, 528 transitions, 4638 flow [2024-11-19 09:58:20,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-19 09:58:20,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2024-11-19 09:58:20,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 481 transitions. [2024-11-19 09:58:20,983 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.46881091617933723 [2024-11-19 09:58:20,983 INFO L175 Difference]: Start difference. First operand has 212 places, 139 transitions, 1276 flow. Second operand 27 states and 481 transitions. [2024-11-19 09:58:20,983 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 238 places, 528 transitions, 4638 flow [2024-11-19 09:58:21,180 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 224 places, 528 transitions, 4406 flow, removed 73 selfloop flow, removed 14 redundant places. [2024-11-19 09:58:21,183 INFO L231 Difference]: Finished difference. Result has 236 places, 151 transitions, 1348 flow [2024-11-19 09:58:21,184 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=1050, PETRI_DIFFERENCE_MINUEND_PLACES=198, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=27, PETRI_FLOW=1348, PETRI_PLACES=236, PETRI_TRANSITIONS=151} [2024-11-19 09:58:21,184 INFO L277 CegarLoopForPetriNet]: 36 programPoint places, 200 predicate places. [2024-11-19 09:58:21,184 INFO L471 AbstractCegarLoop]: Abstraction has has 236 places, 151 transitions, 1348 flow [2024-11-19 09:58:21,184 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 41 states have (on average 11.292682926829269) internal successors, (463), 41 states have internal predecessors, (463), 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 09:58:21,184 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:58:21,185 INFO L204 CegarLoopForPetriNet]: trace histogram [22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:58:21,196 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-19 09:58:21,385 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-19 09:58:21,385 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting f1Err0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-19 09:58:21,385 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:58:21,386 INFO L85 PathProgramCache]: Analyzing trace with hash -2033938980, now seen corresponding path program 4 times [2024-11-19 09:58:21,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:58:21,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563184467] [2024-11-19 09:58:21,386 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-19 09:58:21,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:58:21,396 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-19 09:58:21,397 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:58:21,838 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:58:21,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:58:21,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563184467] [2024-11-19 09:58:21,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [563184467] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 09:58:21,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [921188056] [2024-11-19 09:58:21,839 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-19 09:58:21,839 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:58:21,840 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 09:58:21,841 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 09:58:21,849 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-19 09:58:21,902 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-19 09:58:21,902 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:58:21,903 INFO L255 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-19 09:58:21,904 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 09:58:22,265 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:58:22,265 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 09:58:23,117 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:58:23,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [921188056] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 09:58:23,118 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 09:58:23,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 27, 27] total 76 [2024-11-19 09:58:23,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315836588] [2024-11-19 09:58:23,118 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 09:58:23,118 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 77 states [2024-11-19 09:58:23,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:58:23,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 77 interpolants. [2024-11-19 09:58:23,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2247, Invalid=3605, Unknown=0, NotChecked=0, Total=5852 [2024-11-19 09:58:23,164 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 38 [2024-11-19 09:58:23,164 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 236 places, 151 transitions, 1348 flow. Second operand has 77 states, 77 states have (on average 11.155844155844155) internal successors, (859), 77 states have internal predecessors, (859), 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 09:58:23,165 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:58:23,165 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 38 [2024-11-19 09:58:23,165 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:58:25,801 INFO L124 PetriNetUnfolderBase]: 4651/8056 cut-off events. [2024-11-19 09:58:25,802 INFO L125 PetriNetUnfolderBase]: For 205368/205368 co-relation queries the response was YES. [2024-11-19 09:58:25,870 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33935 conditions, 8056 events. 4651/8056 cut-off events. For 205368/205368 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 43588 event pairs, 864 based on Foata normal form. 672/8728 useless extension candidates. Maximal degree in co-relation 33086. Up to 2992 conditions per place. [2024-11-19 09:58:25,887 INFO L140 encePairwiseOnDemand]: 31/38 looper letters, 803 selfloop transitions, 76 changer transitions 0/887 dead transitions. [2024-11-19 09:58:25,887 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 286 places, 887 transitions, 7659 flow [2024-11-19 09:58:25,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2024-11-19 09:58:25,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2024-11-19 09:58:25,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 852 transitions. [2024-11-19 09:58:25,889 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.43962848297213625 [2024-11-19 09:58:25,890 INFO L175 Difference]: Start difference. First operand has 236 places, 151 transitions, 1348 flow. Second operand 51 states and 852 transitions. [2024-11-19 09:58:25,890 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 286 places, 887 transitions, 7659 flow [2024-11-19 09:58:26,160 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 272 places, 887 transitions, 7427 flow, removed 73 selfloop flow, removed 14 redundant places. [2024-11-19 09:58:26,165 INFO L231 Difference]: Finished difference. Result has 296 places, 175 transitions, 1660 flow [2024-11-19 09:58:26,166 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=1122, PETRI_DIFFERENCE_MINUEND_PLACES=222, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=151, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=53, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=51, PETRI_FLOW=1660, PETRI_PLACES=296, PETRI_TRANSITIONS=175} [2024-11-19 09:58:26,166 INFO L277 CegarLoopForPetriNet]: 36 programPoint places, 260 predicate places. [2024-11-19 09:58:26,166 INFO L471 AbstractCegarLoop]: Abstraction has has 296 places, 175 transitions, 1660 flow [2024-11-19 09:58:26,167 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 77 states, 77 states have (on average 11.155844155844155) internal successors, (859), 77 states have internal predecessors, (859), 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 09:58:26,167 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:58:26,167 INFO L204 CegarLoopForPetriNet]: trace histogram [22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:58:26,181 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-19 09:58:26,367 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-19 09:58:26,368 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting f2Err0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-19 09:58:26,368 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:58:26,368 INFO L85 PathProgramCache]: Analyzing trace with hash -1102351935, now seen corresponding path program 4 times [2024-11-19 09:58:26,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:58:26,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35713698] [2024-11-19 09:58:26,368 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-19 09:58:26,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:58:26,379 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-19 09:58:26,379 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:58:26,892 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:58:26,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:58:26,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35713698] [2024-11-19 09:58:26,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [35713698] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 09:58:26,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1797675400] [2024-11-19 09:58:26,893 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-19 09:58:26,893 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:58:26,893 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 09:58:26,894 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 09:58:26,895 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-19 09:58:26,947 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-19 09:58:26,947 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:58:26,948 INFO L255 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-19 09:58:26,949 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 09:58:27,428 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:58:27,428 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 09:58:28,120 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:58:28,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1797675400] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 09:58:28,121 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 09:58:28,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 27, 27] total 77 [2024-11-19 09:58:28,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270618442] [2024-11-19 09:58:28,121 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 09:58:28,121 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 78 states [2024-11-19 09:58:28,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:58:28,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 78 interpolants. [2024-11-19 09:58:28,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2253, Invalid=3753, Unknown=0, NotChecked=0, Total=6006 [2024-11-19 09:58:28,127 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 38 [2024-11-19 09:58:28,127 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 296 places, 175 transitions, 1660 flow. Second operand has 78 states, 78 states have (on average 11.192307692307692) internal successors, (873), 78 states have internal predecessors, (873), 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 09:58:28,127 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:58:28,128 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 38 [2024-11-19 09:58:28,128 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:58:31,645 INFO L124 PetriNetUnfolderBase]: 5683/9786 cut-off events. [2024-11-19 09:58:31,645 INFO L125 PetriNetUnfolderBase]: For 237933/237933 co-relation queries the response was YES. [2024-11-19 09:58:31,733 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42585 conditions, 9786 events. 5683/9786 cut-off events. For 237933/237933 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 53545 event pairs, 1436 based on Foata normal form. 696/10482 useless extension candidates. Maximal degree in co-relation 41712. Up to 4651 conditions per place. [2024-11-19 09:58:31,760 INFO L140 encePairwiseOnDemand]: 31/38 looper letters, 876 selfloop transitions, 76 changer transitions 0/960 dead transitions. [2024-11-19 09:58:31,760 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 346 places, 960 transitions, 8262 flow [2024-11-19 09:58:31,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2024-11-19 09:58:31,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2024-11-19 09:58:31,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 901 transitions. [2024-11-19 09:58:31,763 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4649122807017544 [2024-11-19 09:58:31,763 INFO L175 Difference]: Start difference. First operand has 296 places, 175 transitions, 1660 flow. Second operand 51 states and 901 transitions. [2024-11-19 09:58:31,763 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 346 places, 960 transitions, 8262 flow [2024-11-19 09:58:32,265 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 320 places, 960 transitions, 7862 flow, removed 145 selfloop flow, removed 26 redundant places. [2024-11-19 09:58:32,270 INFO L231 Difference]: Finished difference. Result has 344 places, 199 transitions, 1804 flow [2024-11-19 09:58:32,271 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=1266, PETRI_DIFFERENCE_MINUEND_PLACES=270, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=175, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=53, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=51, PETRI_FLOW=1804, PETRI_PLACES=344, PETRI_TRANSITIONS=199} [2024-11-19 09:58:32,271 INFO L277 CegarLoopForPetriNet]: 36 programPoint places, 308 predicate places. [2024-11-19 09:58:32,271 INFO L471 AbstractCegarLoop]: Abstraction has has 344 places, 199 transitions, 1804 flow [2024-11-19 09:58:32,272 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 78 states, 78 states have (on average 11.192307692307692) internal successors, (873), 78 states have internal predecessors, (873), 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 09:58:32,272 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:58:32,272 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:58:32,283 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-19 09:58:32,472 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:58:32,472 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-19 09:58:32,473 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:58:32,473 INFO L85 PathProgramCache]: Analyzing trace with hash -453000225, now seen corresponding path program 1 times [2024-11-19 09:58:32,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:58:32,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201683558] [2024-11-19 09:58:32,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:58:32,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:58:32,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:58:32,502 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2024-11-19 09:58:32,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:58:32,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201683558] [2024-11-19 09:58:32,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201683558] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:58:32,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:58:32,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-19 09:58:32,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716318786] [2024-11-19 09:58:32,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:58:32,504 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 09:58:32,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:58:32,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 09:58:32,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 09:58:32,505 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2024-11-19 09:58:32,505 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 344 places, 199 transitions, 1804 flow. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:58:32,505 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:58:32,505 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2024-11-19 09:58:32,505 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:58:34,325 INFO L124 PetriNetUnfolderBase]: 5644/9745 cut-off events. [2024-11-19 09:58:34,325 INFO L125 PetriNetUnfolderBase]: For 100293/100296 co-relation queries the response was YES. [2024-11-19 09:58:34,402 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40472 conditions, 9745 events. 5644/9745 cut-off events. For 100293/100296 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 53282 event pairs, 4578 based on Foata normal form. 5/9735 useless extension candidates. Maximal degree in co-relation 39579. Up to 9412 conditions per place. [2024-11-19 09:58:34,418 INFO L140 encePairwiseOnDemand]: 36/38 looper letters, 135 selfloop transitions, 1 changer transitions 52/198 dead transitions. [2024-11-19 09:58:34,418 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 345 places, 198 transitions, 2128 flow [2024-11-19 09:58:34,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 09:58:34,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 09:58:34,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 53 transitions. [2024-11-19 09:58:34,419 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4649122807017544 [2024-11-19 09:58:34,419 INFO L175 Difference]: Start difference. First operand has 344 places, 199 transitions, 1804 flow. Second operand 3 states and 53 transitions. [2024-11-19 09:58:34,419 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 345 places, 198 transitions, 2128 flow [2024-11-19 09:58:34,914 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 319 places, 198 transitions, 1734 flow, removed 145 selfloop flow, removed 26 redundant places. [2024-11-19 09:58:34,916 INFO L231 Difference]: Finished difference. Result has 319 places, 146 transitions, 875 flow [2024-11-19 09:58:34,916 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=1408, PETRI_DIFFERENCE_MINUEND_PLACES=317, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=198, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=197, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=875, PETRI_PLACES=319, PETRI_TRANSITIONS=146} [2024-11-19 09:58:34,916 INFO L277 CegarLoopForPetriNet]: 36 programPoint places, 283 predicate places. [2024-11-19 09:58:34,916 INFO L471 AbstractCegarLoop]: Abstraction has has 319 places, 146 transitions, 875 flow [2024-11-19 09:58:34,917 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:58:34,917 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:58:34,917 INFO L204 CegarLoopForPetriNet]: trace histogram [46, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:58:34,917 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-19 09:58:34,917 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting f1Err0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-19 09:58:34,917 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:58:34,917 INFO L85 PathProgramCache]: Analyzing trace with hash -1976965768, now seen corresponding path program 5 times [2024-11-19 09:58:34,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:58:34,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464747390] [2024-11-19 09:58:34,917 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-19 09:58:34,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:58:34,941 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 24 check-sat command(s) [2024-11-19 09:58:34,941 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:58:36,334 INFO L134 CoverageAnalysis]: Checked inductivity of 1081 backedges. 0 proven. 1081 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:58:36,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:58:36,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464747390] [2024-11-19 09:58:36,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464747390] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 09:58:36,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2135071123] [2024-11-19 09:58:36,335 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-19 09:58:36,335 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:58:36,335 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 09:58:36,336 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 09:58:36,337 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-19 09:58:36,404 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 24 check-sat command(s) [2024-11-19 09:58:36,404 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:58:36,405 INFO L255 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 52 conjuncts are in the unsatisfiable core [2024-11-19 09:58:36,407 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 09:58:37,504 INFO L134 CoverageAnalysis]: Checked inductivity of 1081 backedges. 0 proven. 1081 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:58:37,504 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 09:58:40,178 INFO L134 CoverageAnalysis]: Checked inductivity of 1081 backedges. 0 proven. 1081 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:58:40,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2135071123] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 09:58:40,178 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 09:58:40,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [51, 51, 51] total 148 [2024-11-19 09:58:40,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521247171] [2024-11-19 09:58:40,178 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 09:58:40,179 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 149 states [2024-11-19 09:58:40,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:58:40,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 149 interpolants. [2024-11-19 09:58:40,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9087, Invalid=12965, Unknown=0, NotChecked=0, Total=22052 [2024-11-19 09:58:40,199 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 38 [2024-11-19 09:58:40,201 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 319 places, 146 transitions, 875 flow. Second operand has 149 states, 149 states have (on average 11.080536912751677) internal successors, (1651), 149 states have internal predecessors, (1651), 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 09:58:40,201 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:58:40,201 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 38 [2024-11-19 09:58:40,201 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:58:48,565 INFO L124 PetriNetUnfolderBase]: 6428/10982 cut-off events. [2024-11-19 09:58:48,565 INFO L125 PetriNetUnfolderBase]: For 1498106/1498106 co-relation queries the response was YES. [2024-11-19 09:58:48,661 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43832 conditions, 10982 events. 6428/10982 cut-off events. For 1498106/1498106 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 53296 event pairs, 1446 based on Foata normal form. 1344/12326 useless extension candidates. Maximal degree in co-relation 43689. Up to 3684 conditions per place. [2024-11-19 09:58:48,691 INFO L140 encePairwiseOnDemand]: 31/38 looper letters, 1503 selfloop transitions, 100 changer transitions 15/1624 dead transitions. [2024-11-19 09:58:48,691 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 391 places, 1624 transitions, 13260 flow [2024-11-19 09:58:48,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 99 states. [2024-11-19 09:58:48,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2024-11-19 09:58:48,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 1639 transitions. [2024-11-19 09:58:48,694 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.43567251461988304 [2024-11-19 09:58:48,694 INFO L175 Difference]: Start difference. First operand has 319 places, 146 transitions, 875 flow. Second operand 99 states and 1639 transitions. [2024-11-19 09:58:48,694 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 391 places, 1624 transitions, 13260 flow [2024-11-19 09:58:49,172 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 386 places, 1624 transitions, 12763 flow, removed 248 selfloop flow, removed 5 redundant places. [2024-11-19 09:58:49,179 INFO L231 Difference]: Finished difference. Result has 434 places, 194 transitions, 1728 flow [2024-11-19 09:58:49,179 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=854, PETRI_DIFFERENCE_MINUEND_PLACES=288, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=53, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=99, PETRI_FLOW=1728, PETRI_PLACES=434, PETRI_TRANSITIONS=194} [2024-11-19 09:58:49,180 INFO L277 CegarLoopForPetriNet]: 36 programPoint places, 398 predicate places. [2024-11-19 09:58:49,180 INFO L471 AbstractCegarLoop]: Abstraction has has 434 places, 194 transitions, 1728 flow [2024-11-19 09:58:49,180 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 149 states, 149 states have (on average 11.080536912751677) internal successors, (1651), 149 states have internal predecessors, (1651), 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 09:58:49,180 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:58:49,181 INFO L204 CegarLoopForPetriNet]: trace histogram [46, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:58:49,192 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-19 09:58:49,381 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:58:49,381 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting f2Err0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-19 09:58:49,381 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:58:49,382 INFO L85 PathProgramCache]: Analyzing trace with hash -1991273535, now seen corresponding path program 5 times [2024-11-19 09:58:49,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:58:49,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027435738] [2024-11-19 09:58:49,382 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-19 09:58:49,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:58:49,407 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 24 check-sat command(s) [2024-11-19 09:58:49,407 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:58:50,806 INFO L134 CoverageAnalysis]: Checked inductivity of 1081 backedges. 0 proven. 1081 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:58:50,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:58:50,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027435738] [2024-11-19 09:58:50,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1027435738] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 09:58:50,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [430029344] [2024-11-19 09:58:50,807 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-19 09:58:50,807 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:58:50,807 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 09:58:50,809 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 09:58:50,810 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-19 09:58:50,882 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 24 check-sat command(s) [2024-11-19 09:58:50,882 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:58:50,883 INFO L255 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 52 conjuncts are in the unsatisfiable core [2024-11-19 09:58:50,884 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 09:58:51,979 INFO L134 CoverageAnalysis]: Checked inductivity of 1081 backedges. 0 proven. 1081 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:58:51,979 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 09:58:54,582 INFO L134 CoverageAnalysis]: Checked inductivity of 1081 backedges. 0 proven. 1081 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:58:54,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [430029344] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 09:58:54,582 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 09:58:54,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [51, 51, 51] total 148 [2024-11-19 09:58:54,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180948740] [2024-11-19 09:58:54,582 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 09:58:54,583 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 149 states [2024-11-19 09:58:54,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:58:54,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 149 interpolants. [2024-11-19 09:58:54,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9087, Invalid=12965, Unknown=0, NotChecked=0, Total=22052 [2024-11-19 09:58:54,604 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 38 [2024-11-19 09:58:54,605 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 434 places, 194 transitions, 1728 flow. Second operand has 149 states, 149 states have (on average 11.080536912751677) internal successors, (1651), 149 states have internal predecessors, (1651), 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 09:58:54,605 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:58:54,605 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 38 [2024-11-19 09:58:54,605 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:59:04,509 INFO L124 PetriNetUnfolderBase]: 8492/14440 cut-off events. [2024-11-19 09:59:04,510 INFO L125 PetriNetUnfolderBase]: For 1636553/1636553 co-relation queries the response was YES. [2024-11-19 09:59:04,663 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62337 conditions, 14440 events. 8492/14440 cut-off events. For 1636553/1636553 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 73128 event pairs, 2618 based on Foata normal form. 1392/15832 useless extension candidates. Maximal degree in co-relation 62150. Up to 6946 conditions per place. [2024-11-19 09:59:04,703 INFO L140 encePairwiseOnDemand]: 31/38 looper letters, 1649 selfloop transitions, 100 changer transitions 14/1769 dead transitions. [2024-11-19 09:59:04,703 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 532 places, 1769 transitions, 14222 flow [2024-11-19 09:59:04,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 99 states. [2024-11-19 09:59:04,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2024-11-19 09:59:04,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 1736 transitions. [2024-11-19 09:59:04,707 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4614566719829878 [2024-11-19 09:59:04,707 INFO L175 Difference]: Start difference. First operand has 434 places, 194 transitions, 1728 flow. Second operand 99 states and 1736 transitions. [2024-11-19 09:59:04,707 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 532 places, 1769 transitions, 14222 flow [2024-11-19 09:59:06,202 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 482 places, 1769 transitions, 13630 flow, removed 241 selfloop flow, removed 50 redundant places. [2024-11-19 09:59:06,210 INFO L231 Difference]: Finished difference. Result has 530 places, 242 transitions, 2016 flow [2024-11-19 09:59:06,211 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=1142, PETRI_DIFFERENCE_MINUEND_PLACES=384, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=194, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=53, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=141, PETRI_DIFFERENCE_SUBTRAHEND_STATES=99, PETRI_FLOW=2016, PETRI_PLACES=530, PETRI_TRANSITIONS=242} [2024-11-19 09:59:06,211 INFO L277 CegarLoopForPetriNet]: 36 programPoint places, 494 predicate places. [2024-11-19 09:59:06,211 INFO L471 AbstractCegarLoop]: Abstraction has has 530 places, 242 transitions, 2016 flow [2024-11-19 09:59:06,212 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 149 states, 149 states have (on average 11.080536912751677) internal successors, (1651), 149 states have internal predecessors, (1651), 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 09:59:06,212 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:59:06,212 INFO L204 CegarLoopForPetriNet]: trace histogram [94, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:59:06,228 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-19 09:59:06,412 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:59:06,413 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting f1Err0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-19 09:59:06,413 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:59:06,413 INFO L85 PathProgramCache]: Analyzing trace with hash -228784548, now seen corresponding path program 6 times [2024-11-19 09:59:06,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:59:06,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648099747] [2024-11-19 09:59:06,413 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-19 09:59:06,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:59:06,466 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 48 check-sat command(s) [2024-11-19 09:59:06,469 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:59:11,051 INFO L134 CoverageAnalysis]: Checked inductivity of 4465 backedges. 0 proven. 4465 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:59:11,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:59:11,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648099747] [2024-11-19 09:59:11,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [648099747] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 09:59:11,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [802975756] [2024-11-19 09:59:11,051 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-19 09:59:11,051 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:59:11,051 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 09:59:11,052 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 09:59:11,053 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-19 09:59:11,148 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 48 check-sat command(s) [2024-11-19 09:59:11,148 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:59:11,149 INFO L255 TraceCheckSpWp]: Trace formula consists of 364 conjuncts, 100 conjuncts are in the unsatisfiable core [2024-11-19 09:59:11,152 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 09:59:14,790 INFO L134 CoverageAnalysis]: Checked inductivity of 4465 backedges. 0 proven. 4465 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:59:14,790 INFO L311 TraceCheckSpWp]: Computing backward predicates...