./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/valid-memsafety.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/triangular-longer-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/triangular-longer-1.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 1e30b67a045ce6921ac9aa6cdcebddb50c3d7d787a6b9dd7b66c9173f916fde4 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 18:51:32,906 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 18:51:32,976 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-24 18:51:32,979 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 18:51:32,979 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 18:51:32,996 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 18:51:32,997 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 18:51:32,997 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 18:51:32,998 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 18:51:32,998 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 18:51:32,998 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 18:51:32,998 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 18:51:32,999 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 18:51:32,999 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 18:51:33,000 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 18:51:33,000 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 18:51:33,000 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 18:51:33,000 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 18:51:33,001 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 18:51:33,001 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 18:51:33,001 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-24 18:51:33,002 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-24 18:51:33,002 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-24 18:51:33,002 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 18:51:33,002 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-24 18:51:33,002 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 18:51:33,003 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-24 18:51:33,003 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 18:51:33,003 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 18:51:33,003 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 18:51:33,004 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 18:51:33,004 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 18:51:33,004 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 18:51:33,004 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 18:51:33,004 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 18:51:33,005 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 18:51:33,005 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 18:51:33,005 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 18:51:33,005 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 18:51:33,005 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 18:51:33,006 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 18:51:33,011 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 18:51:33,011 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1e30b67a045ce6921ac9aa6cdcebddb50c3d7d787a6b9dd7b66c9173f916fde4 [2024-10-24 18:51:33,225 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 18:51:33,248 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 18:51:33,250 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 18:51:33,251 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 18:51:33,252 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 18:51:33,253 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/triangular-longer-1.i [2024-10-24 18:51:34,572 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 18:51:34,782 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 18:51:34,785 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/triangular-longer-1.i [2024-10-24 18:51:34,800 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/886872cf9/3447ef2610874878b9d1a4c2ba05d018/FLAGdd7c053b4 [2024-10-24 18:51:35,147 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/886872cf9/3447ef2610874878b9d1a4c2ba05d018 [2024-10-24 18:51:35,149 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 18:51:35,151 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 18:51:35,152 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 18:51:35,152 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 18:51:35,157 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 18:51:35,158 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 06:51:35" (1/1) ... [2024-10-24 18:51:35,159 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@522612a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:51:35, skipping insertion in model container [2024-10-24 18:51:35,159 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 06:51:35" (1/1) ... [2024-10-24 18:51:35,194 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 18:51:35,471 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 18:51:35,481 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 18:51:35,522 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 18:51:35,556 INFO L204 MainTranslator]: Completed translation [2024-10-24 18:51:35,557 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:51:35 WrapperNode [2024-10-24 18:51:35,557 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 18:51:35,558 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 18:51:35,558 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 18:51:35,559 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 18:51:35,565 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:51:35" (1/1) ... [2024-10-24 18:51:35,581 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:51:35" (1/1) ... [2024-10-24 18:51:35,600 INFO L138 Inliner]: procedures = 168, calls = 17, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 39 [2024-10-24 18:51:35,600 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 18:51:35,602 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 18:51:35,602 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 18:51:35,603 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 18:51:35,610 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:51:35" (1/1) ... [2024-10-24 18:51:35,611 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:51:35" (1/1) ... [2024-10-24 18:51:35,612 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:51:35" (1/1) ... [2024-10-24 18:51:35,630 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-24 18:51:35,630 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:51:35" (1/1) ... [2024-10-24 18:51:35,630 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:51:35" (1/1) ... [2024-10-24 18:51:35,635 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:51:35" (1/1) ... [2024-10-24 18:51:35,641 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:51:35" (1/1) ... [2024-10-24 18:51:35,644 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:51:35" (1/1) ... [2024-10-24 18:51:35,648 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:51:35" (1/1) ... [2024-10-24 18:51:35,650 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 18:51:35,651 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 18:51:35,651 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 18:51:35,651 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 18:51:35,652 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:51:35" (1/1) ... [2024-10-24 18:51:35,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 18:51:35,671 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 18:51:35,688 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-24 18:51:35,691 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-24 18:51:35,728 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2024-10-24 18:51:35,728 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2024-10-24 18:51:35,728 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2024-10-24 18:51:35,728 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2024-10-24 18:51:35,728 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-24 18:51:35,728 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 18:51:35,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 18:51:35,729 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-24 18:51:35,729 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 18:51:35,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 18:51:35,730 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-24 18:51:35,821 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 18:51:35,823 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 18:51:35,937 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-24 18:51:35,937 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 18:51:36,009 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 18:51:36,009 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-24 18:51:36,009 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 06:51:36 BoogieIcfgContainer [2024-10-24 18:51:36,009 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 18:51:36,011 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 18:51:36,011 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 18:51:36,014 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 18:51:36,014 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 06:51:35" (1/3) ... [2024-10-24 18:51:36,014 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@606cbf8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 06:51:36, skipping insertion in model container [2024-10-24 18:51:36,015 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:51:35" (2/3) ... [2024-10-24 18:51:36,015 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@606cbf8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 06:51:36, skipping insertion in model container [2024-10-24 18:51:36,015 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 06:51:36" (3/3) ... [2024-10-24 18:51:36,016 INFO L112 eAbstractionObserver]: Analyzing ICFG triangular-longer-1.i [2024-10-24 18:51:36,029 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 18:51:36,029 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-24 18:51:36,029 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-24 18:51:36,084 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-24 18:51:36,126 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 32 places, 29 transitions, 66 flow [2024-10-24 18:51:36,145 INFO L124 PetriNetUnfolderBase]: 4/27 cut-off events. [2024-10-24 18:51:36,145 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 18:51:36,148 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34 conditions, 27 events. 4/27 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 40 event pairs, 0 based on Foata normal form. 0/21 useless extension candidates. Maximal degree in co-relation 27. Up to 2 conditions per place. [2024-10-24 18:51:36,148 INFO L82 GeneralOperation]: Start removeDead. Operand has 32 places, 29 transitions, 66 flow [2024-10-24 18:51:36,151 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 30 places, 27 transitions, 60 flow [2024-10-24 18:51:36,159 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 18:51:36,168 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;@2c0cc398, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 18:51:36,168 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-10-24 18:51:36,179 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-24 18:51:36,179 INFO L124 PetriNetUnfolderBase]: 4/24 cut-off events. [2024-10-24 18:51:36,179 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 18:51:36,179 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 18:51:36,180 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 18:51:36,181 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-24 18:51:36,186 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:51:36,186 INFO L85 PathProgramCache]: Analyzing trace with hash 1038261642, now seen corresponding path program 1 times [2024-10-24 18:51:36,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 18:51:36,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284842039] [2024-10-24 18:51:36,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:51:36,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 18:51:36,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:51:36,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 18:51:36,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 18:51:36,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284842039] [2024-10-24 18:51:36,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284842039] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 18:51:36,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 18:51:36,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-24 18:51:36,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335686304] [2024-10-24 18:51:36,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 18:51:36,413 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 18:51:36,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 18:51:36,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 18:51:36,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 18:51:36,444 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 29 [2024-10-24 18:51:36,447 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 27 transitions, 60 flow. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 18:51:36,447 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 18:51:36,447 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 29 [2024-10-24 18:51:36,448 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 18:51:36,509 INFO L124 PetriNetUnfolderBase]: 70/157 cut-off events. [2024-10-24 18:51:36,510 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-24 18:51:36,511 INFO L83 FinitePrefix]: Finished finitePrefix Result has 282 conditions, 157 events. 70/157 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 554 event pairs, 44 based on Foata normal form. 15/161 useless extension candidates. Maximal degree in co-relation 272. Up to 113 conditions per place. [2024-10-24 18:51:36,513 INFO L140 encePairwiseOnDemand]: 25/29 looper letters, 11 selfloop transitions, 1 changer transitions 1/23 dead transitions. [2024-10-24 18:51:36,513 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 23 transitions, 78 flow [2024-10-24 18:51:36,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 18:51:36,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 18:51:36,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 52 transitions. [2024-10-24 18:51:36,524 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5977011494252874 [2024-10-24 18:51:36,525 INFO L175 Difference]: Start difference. First operand has 30 places, 27 transitions, 60 flow. Second operand 3 states and 52 transitions. [2024-10-24 18:51:36,526 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 23 transitions, 78 flow [2024-10-24 18:51:36,528 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 23 transitions, 76 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 18:51:36,530 INFO L231 Difference]: Finished difference. Result has 28 places, 22 transitions, 50 flow [2024-10-24 18:51:36,532 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=50, PETRI_PLACES=28, PETRI_TRANSITIONS=22} [2024-10-24 18:51:36,535 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, -2 predicate places. [2024-10-24 18:51:36,536 INFO L471 AbstractCegarLoop]: Abstraction has has 28 places, 22 transitions, 50 flow [2024-10-24 18:51:36,536 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 18:51:36,536 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 18:51:36,536 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 18:51:36,537 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 18:51:36,537 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-24 18:51:36,537 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:51:36,538 INFO L85 PathProgramCache]: Analyzing trace with hash 1038262774, now seen corresponding path program 1 times [2024-10-24 18:51:36,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 18:51:36,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618345842] [2024-10-24 18:51:36,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:51:36,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 18:51:36,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:51:36,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 18:51:36,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 18:51:36,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618345842] [2024-10-24 18:51:36,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [618345842] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 18:51:36,744 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 18:51:36,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 18:51:36,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650172085] [2024-10-24 18:51:36,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 18:51:36,745 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 18:51:36,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 18:51:36,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 18:51:36,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 18:51:36,770 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2024-10-24 18:51:36,770 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 22 transitions, 50 flow. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 18:51:36,770 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 18:51:36,770 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2024-10-24 18:51:36,771 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 18:51:36,941 INFO L124 PetriNetUnfolderBase]: 273/487 cut-off events. [2024-10-24 18:51:36,941 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 18:51:36,942 INFO L83 FinitePrefix]: Finished finitePrefix Result has 927 conditions, 487 events. 273/487 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 1990 event pairs, 45 based on Foata normal form. 0/470 useless extension candidates. Maximal degree in co-relation 921. Up to 181 conditions per place. [2024-10-24 18:51:36,944 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 25 selfloop transitions, 4 changer transitions 21/54 dead transitions. [2024-10-24 18:51:36,944 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 54 transitions, 212 flow [2024-10-24 18:51:36,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 18:51:36,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-24 18:51:36,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 99 transitions. [2024-10-24 18:51:36,946 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5689655172413793 [2024-10-24 18:51:36,946 INFO L175 Difference]: Start difference. First operand has 28 places, 22 transitions, 50 flow. Second operand 6 states and 99 transitions. [2024-10-24 18:51:36,946 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 54 transitions, 212 flow [2024-10-24 18:51:36,947 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 54 transitions, 211 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-24 18:51:36,948 INFO L231 Difference]: Finished difference. Result has 35 places, 23 transitions, 74 flow [2024-10-24 18:51:36,948 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=49, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=74, PETRI_PLACES=35, PETRI_TRANSITIONS=23} [2024-10-24 18:51:36,949 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 5 predicate places. [2024-10-24 18:51:36,949 INFO L471 AbstractCegarLoop]: Abstraction has has 35 places, 23 transitions, 74 flow [2024-10-24 18:51:36,949 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 18:51:36,950 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 18:51:36,950 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 18:51:36,950 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 18:51:36,951 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-24 18:51:36,952 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:51:36,952 INFO L85 PathProgramCache]: Analyzing trace with hash 1117686194, now seen corresponding path program 1 times [2024-10-24 18:51:36,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 18:51:36,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903738966] [2024-10-24 18:51:36,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:51:36,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 18:51:36,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:51:37,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 18:51:37,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 18:51:37,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903738966] [2024-10-24 18:51:37,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903738966] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 18:51:37,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 18:51:37,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 18:51:37,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326219249] [2024-10-24 18:51:37,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 18:51:37,079 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 18:51:37,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 18:51:37,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 18:51:37,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-24 18:51:37,100 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2024-10-24 18:51:37,100 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 23 transitions, 74 flow. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 18:51:37,100 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 18:51:37,100 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2024-10-24 18:51:37,100 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 18:51:37,308 INFO L124 PetriNetUnfolderBase]: 382/704 cut-off events. [2024-10-24 18:51:37,309 INFO L125 PetriNetUnfolderBase]: For 276/276 co-relation queries the response was YES. [2024-10-24 18:51:37,311 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1602 conditions, 704 events. 382/704 cut-off events. For 276/276 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 3073 event pairs, 65 based on Foata normal form. 27/727 useless extension candidates. Maximal degree in co-relation 1591. Up to 246 conditions per place. [2024-10-24 18:51:37,314 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 46 selfloop transitions, 9 changer transitions 20/79 dead transitions. [2024-10-24 18:51:37,314 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 79 transitions, 382 flow [2024-10-24 18:51:37,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 18:51:37,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-24 18:51:37,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 144 transitions. [2024-10-24 18:51:37,316 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5517241379310345 [2024-10-24 18:51:37,316 INFO L175 Difference]: Start difference. First operand has 35 places, 23 transitions, 74 flow. Second operand 9 states and 144 transitions. [2024-10-24 18:51:37,316 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 79 transitions, 382 flow [2024-10-24 18:51:37,318 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 79 transitions, 366 flow, removed 8 selfloop flow, removed 2 redundant places. [2024-10-24 18:51:37,319 INFO L231 Difference]: Finished difference. Result has 44 places, 32 transitions, 159 flow [2024-10-24 18:51:37,320 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=159, PETRI_PLACES=44, PETRI_TRANSITIONS=32} [2024-10-24 18:51:37,320 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 14 predicate places. [2024-10-24 18:51:37,320 INFO L471 AbstractCegarLoop]: Abstraction has has 44 places, 32 transitions, 159 flow [2024-10-24 18:51:37,320 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 18:51:37,321 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 18:51:37,321 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 18:51:37,321 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 18:51:37,321 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-24 18:51:37,321 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:51:37,321 INFO L85 PathProgramCache]: Analyzing trace with hash 1000674482, now seen corresponding path program 2 times [2024-10-24 18:51:37,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 18:51:37,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378403337] [2024-10-24 18:51:37,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:51:37,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 18:51:37,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:51:37,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 18:51:37,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 18:51:37,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378403337] [2024-10-24 18:51:37,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378403337] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 18:51:37,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 18:51:37,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 18:51:37,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427397307] [2024-10-24 18:51:37,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 18:51:37,415 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 18:51:37,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 18:51:37,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 18:51:37,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 18:51:37,425 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2024-10-24 18:51:37,425 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 32 transitions, 159 flow. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 18:51:37,425 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 18:51:37,425 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2024-10-24 18:51:37,425 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 18:51:37,602 INFO L124 PetriNetUnfolderBase]: 328/611 cut-off events. [2024-10-24 18:51:37,604 INFO L125 PetriNetUnfolderBase]: For 971/971 co-relation queries the response was YES. [2024-10-24 18:51:37,605 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1741 conditions, 611 events. 328/611 cut-off events. For 971/971 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 2595 event pairs, 65 based on Foata normal form. 45/652 useless extension candidates. Maximal degree in co-relation 1723. Up to 234 conditions per place. [2024-10-24 18:51:37,608 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 38 selfloop transitions, 9 changer transitions 28/79 dead transitions. [2024-10-24 18:51:37,608 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 79 transitions, 499 flow [2024-10-24 18:51:37,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-24 18:51:37,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-24 18:51:37,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 127 transitions. [2024-10-24 18:51:37,611 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5474137931034483 [2024-10-24 18:51:37,612 INFO L175 Difference]: Start difference. First operand has 44 places, 32 transitions, 159 flow. Second operand 8 states and 127 transitions. [2024-10-24 18:51:37,612 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 79 transitions, 499 flow [2024-10-24 18:51:37,615 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 79 transitions, 491 flow, removed 4 selfloop flow, removed 2 redundant places. [2024-10-24 18:51:37,616 INFO L231 Difference]: Finished difference. Result has 51 places, 34 transitions, 213 flow [2024-10-24 18:51:37,617 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=153, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=213, PETRI_PLACES=51, PETRI_TRANSITIONS=34} [2024-10-24 18:51:37,617 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 21 predicate places. [2024-10-24 18:51:37,617 INFO L471 AbstractCegarLoop]: Abstraction has has 51 places, 34 transitions, 213 flow [2024-10-24 18:51:37,618 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 18:51:37,618 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 18:51:37,618 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 18:51:37,618 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 18:51:37,618 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-24 18:51:37,619 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:51:37,619 INFO L85 PathProgramCache]: Analyzing trace with hash -1356857717, now seen corresponding path program 1 times [2024-10-24 18:51:37,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 18:51:37,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259578807] [2024-10-24 18:51:37,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:51:37,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 18:51:37,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:51:37,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 18:51:37,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 18:51:37,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259578807] [2024-10-24 18:51:37,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1259578807] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 18:51:37,741 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 18:51:37,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 18:51:37,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578532831] [2024-10-24 18:51:37,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 18:51:37,742 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 18:51:37,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 18:51:37,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 18:51:37,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-24 18:51:37,755 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2024-10-24 18:51:37,756 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 34 transitions, 213 flow. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 18:51:37,756 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 18:51:37,756 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2024-10-24 18:51:37,756 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 18:51:37,950 INFO L124 PetriNetUnfolderBase]: 355/662 cut-off events. [2024-10-24 18:51:37,950 INFO L125 PetriNetUnfolderBase]: For 1747/1747 co-relation queries the response was YES. [2024-10-24 18:51:37,952 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2069 conditions, 662 events. 355/662 cut-off events. For 1747/1747 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 2915 event pairs, 86 based on Foata normal form. 18/676 useless extension candidates. Maximal degree in co-relation 2046. Up to 258 conditions per place. [2024-10-24 18:51:37,954 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 43 selfloop transitions, 16 changer transitions 21/84 dead transitions. [2024-10-24 18:51:37,954 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 84 transitions, 600 flow [2024-10-24 18:51:37,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 18:51:37,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-24 18:51:37,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 140 transitions. [2024-10-24 18:51:37,957 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5363984674329502 [2024-10-24 18:51:37,957 INFO L175 Difference]: Start difference. First operand has 51 places, 34 transitions, 213 flow. Second operand 9 states and 140 transitions. [2024-10-24 18:51:37,958 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 84 transitions, 600 flow [2024-10-24 18:51:37,967 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 84 transitions, 530 flow, removed 24 selfloop flow, removed 7 redundant places. [2024-10-24 18:51:37,969 INFO L231 Difference]: Finished difference. Result has 54 places, 42 transitions, 300 flow [2024-10-24 18:51:37,970 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=177, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=300, PETRI_PLACES=54, PETRI_TRANSITIONS=42} [2024-10-24 18:51:37,971 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 24 predicate places. [2024-10-24 18:51:37,972 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 42 transitions, 300 flow [2024-10-24 18:51:37,972 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 18:51:37,973 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 18:51:37,973 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 18:51:37,973 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 18:51:37,973 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-24 18:51:37,973 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:51:37,974 INFO L85 PathProgramCache]: Analyzing trace with hash 392343623, now seen corresponding path program 2 times [2024-10-24 18:51:37,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 18:51:37,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808364207] [2024-10-24 18:51:37,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:51:37,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 18:51:37,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:51:38,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 18:51:38,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 18:51:38,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808364207] [2024-10-24 18:51:38,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1808364207] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 18:51:38,097 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 18:51:38,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 18:51:38,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737523773] [2024-10-24 18:51:38,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 18:51:38,098 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 18:51:38,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 18:51:38,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 18:51:38,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 18:51:38,107 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2024-10-24 18:51:38,108 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 42 transitions, 300 flow. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 18:51:38,108 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 18:51:38,108 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2024-10-24 18:51:38,108 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 18:51:38,304 INFO L124 PetriNetUnfolderBase]: 427/790 cut-off events. [2024-10-24 18:51:38,304 INFO L125 PetriNetUnfolderBase]: For 2386/2386 co-relation queries the response was YES. [2024-10-24 18:51:38,307 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2560 conditions, 790 events. 427/790 cut-off events. For 2386/2386 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 3511 event pairs, 71 based on Foata normal form. 27/811 useless extension candidates. Maximal degree in co-relation 2536. Up to 223 conditions per place. [2024-10-24 18:51:38,310 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 43 selfloop transitions, 20 changer transitions 28/95 dead transitions. [2024-10-24 18:51:38,310 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 95 transitions, 710 flow [2024-10-24 18:51:38,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 18:51:38,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-24 18:51:38,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 155 transitions. [2024-10-24 18:51:38,312 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5344827586206896 [2024-10-24 18:51:38,312 INFO L175 Difference]: Start difference. First operand has 54 places, 42 transitions, 300 flow. Second operand 10 states and 155 transitions. [2024-10-24 18:51:38,312 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 95 transitions, 710 flow [2024-10-24 18:51:38,319 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 95 transitions, 664 flow, removed 19 selfloop flow, removed 3 redundant places. [2024-10-24 18:51:38,320 INFO L231 Difference]: Finished difference. Result has 64 places, 46 transitions, 381 flow [2024-10-24 18:51:38,321 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=266, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=381, PETRI_PLACES=64, PETRI_TRANSITIONS=46} [2024-10-24 18:51:38,322 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 34 predicate places. [2024-10-24 18:51:38,322 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 46 transitions, 381 flow [2024-10-24 18:51:38,322 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 18:51:38,322 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 18:51:38,322 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 18:51:38,322 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 18:51:38,323 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-24 18:51:38,323 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:51:38,323 INFO L85 PathProgramCache]: Analyzing trace with hash 653489688, now seen corresponding path program 1 times [2024-10-24 18:51:38,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 18:51:38,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757404990] [2024-10-24 18:51:38,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:51:38,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 18:51:38,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:51:38,421 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 18:51:38,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 18:51:38,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757404990] [2024-10-24 18:51:38,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [757404990] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 18:51:38,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1142958920] [2024-10-24 18:51:38,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:51:38,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 18:51:38,422 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 18:51:38,424 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) [2024-10-24 18:51:38,425 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-24 18:51:38,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:51:38,475 INFO L255 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-24 18:51:38,480 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 18:51:38,605 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 18:51:38,605 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 18:51:38,701 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 18:51:38,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1142958920] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 18:51:38,701 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 18:51:38,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 12 [2024-10-24 18:51:38,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568898660] [2024-10-24 18:51:38,701 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 18:51:38,702 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-24 18:51:38,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 18:51:38,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-24 18:51:38,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2024-10-24 18:51:38,723 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2024-10-24 18:51:38,724 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 46 transitions, 381 flow. Second operand has 13 states, 13 states have (on average 10.153846153846153) internal successors, (132), 13 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 18:51:38,724 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 18:51:38,724 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2024-10-24 18:51:38,724 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 18:51:39,134 INFO L124 PetriNetUnfolderBase]: 643/1171 cut-off events. [2024-10-24 18:51:39,134 INFO L125 PetriNetUnfolderBase]: For 6374/6374 co-relation queries the response was YES. [2024-10-24 18:51:39,137 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4378 conditions, 1171 events. 643/1171 cut-off events. For 6374/6374 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 5098 event pairs, 59 based on Foata normal form. 45/1210 useless extension candidates. Maximal degree in co-relation 4349. Up to 171 conditions per place. [2024-10-24 18:51:39,140 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 65 selfloop transitions, 35 changer transitions 56/160 dead transitions. [2024-10-24 18:51:39,140 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 160 transitions, 1361 flow [2024-10-24 18:51:39,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-24 18:51:39,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2024-10-24 18:51:39,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 293 transitions. [2024-10-24 18:51:39,142 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5317604355716878 [2024-10-24 18:51:39,142 INFO L175 Difference]: Start difference. First operand has 64 places, 46 transitions, 381 flow. Second operand 19 states and 293 transitions. [2024-10-24 18:51:39,142 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 160 transitions, 1361 flow [2024-10-24 18:51:39,148 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 160 transitions, 1300 flow, removed 22 selfloop flow, removed 5 redundant places. [2024-10-24 18:51:39,149 INFO L231 Difference]: Finished difference. Result has 84 places, 62 transitions, 705 flow [2024-10-24 18:51:39,149 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=350, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=705, PETRI_PLACES=84, PETRI_TRANSITIONS=62} [2024-10-24 18:51:39,150 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 54 predicate places. [2024-10-24 18:51:39,150 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 62 transitions, 705 flow [2024-10-24 18:51:39,150 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.153846153846153) internal successors, (132), 13 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 18:51:39,150 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 18:51:39,150 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 18:51:39,170 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-24 18:51:39,351 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 18:51:39,351 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-24 18:51:39,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:51:39,352 INFO L85 PathProgramCache]: Analyzing trace with hash 254201038, now seen corresponding path program 1 times [2024-10-24 18:51:39,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 18:51:39,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635474819] [2024-10-24 18:51:39,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:51:39,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 18:51:39,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:51:39,509 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-24 18:51:39,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 18:51:39,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635474819] [2024-10-24 18:51:39,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [635474819] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 18:51:39,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1693730237] [2024-10-24 18:51:39,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:51:39,510 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 18:51:39,510 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 18:51:39,512 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) [2024-10-24 18:51:39,513 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-24 18:51:39,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:51:39,562 INFO L255 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-10-24 18:51:39,564 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 18:51:39,642 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-24 18:51:39,643 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 18:51:39,813 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-24 18:51:39,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1693730237] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 18:51:39,814 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 18:51:39,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 16 [2024-10-24 18:51:39,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835552970] [2024-10-24 18:51:39,814 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 18:51:39,815 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-10-24 18:51:39,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 18:51:39,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-10-24 18:51:39,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=205, Unknown=0, NotChecked=0, Total=272 [2024-10-24 18:51:39,838 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2024-10-24 18:51:39,838 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 62 transitions, 705 flow. Second operand has 17 states, 17 states have (on average 10.352941176470589) internal successors, (176), 17 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 18:51:39,838 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 18:51:39,838 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2024-10-24 18:51:39,838 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 18:51:40,412 INFO L124 PetriNetUnfolderBase]: 841/1583 cut-off events. [2024-10-24 18:51:40,412 INFO L125 PetriNetUnfolderBase]: For 16610/16610 co-relation queries the response was YES. [2024-10-24 18:51:40,419 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6946 conditions, 1583 events. 841/1583 cut-off events. For 16610/16610 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 7026 event pairs, 203 based on Foata normal form. 81/1660 useless extension candidates. Maximal degree in co-relation 6909. Up to 720 conditions per place. [2024-10-24 18:51:40,424 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 92 selfloop transitions, 27 changer transitions 89/212 dead transitions. [2024-10-24 18:51:40,424 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 212 transitions, 2279 flow [2024-10-24 18:51:40,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-10-24 18:51:40,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2024-10-24 18:51:40,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 376 transitions. [2024-10-24 18:51:40,426 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5186206896551724 [2024-10-24 18:51:40,426 INFO L175 Difference]: Start difference. First operand has 84 places, 62 transitions, 705 flow. Second operand 25 states and 376 transitions. [2024-10-24 18:51:40,426 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 212 transitions, 2279 flow [2024-10-24 18:51:40,439 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 212 transitions, 1791 flow, removed 229 selfloop flow, removed 10 redundant places. [2024-10-24 18:51:40,441 INFO L231 Difference]: Finished difference. Result has 112 places, 76 transitions, 784 flow [2024-10-24 18:51:40,442 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=481, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=784, PETRI_PLACES=112, PETRI_TRANSITIONS=76} [2024-10-24 18:51:40,442 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 82 predicate places. [2024-10-24 18:51:40,442 INFO L471 AbstractCegarLoop]: Abstraction has has 112 places, 76 transitions, 784 flow [2024-10-24 18:51:40,443 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 10.352941176470589) internal successors, (176), 17 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 18:51:40,443 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 18:51:40,443 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 18:51:40,456 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-24 18:51:40,643 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,SelfDestructingSolverStorable7 [2024-10-24 18:51:40,643 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-24 18:51:40,644 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:51:40,644 INFO L85 PathProgramCache]: Analyzing trace with hash 1512318702, now seen corresponding path program 2 times [2024-10-24 18:51:40,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 18:51:40,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355001397] [2024-10-24 18:51:40,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:51:40,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 18:51:40,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:51:40,757 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 1 proven. 15 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-24 18:51:40,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 18:51:40,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355001397] [2024-10-24 18:51:40,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [355001397] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 18:51:40,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [764554602] [2024-10-24 18:51:40,758 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-24 18:51:40,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 18:51:40,758 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 18:51:40,760 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) [2024-10-24 18:51:40,765 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-24 18:51:40,815 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-24 18:51:40,816 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 18:51:40,817 INFO L255 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-10-24 18:51:40,818 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 18:51:40,870 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 1 proven. 15 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-24 18:51:40,870 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 18:51:40,988 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 1 proven. 15 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-24 18:51:40,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [764554602] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 18:51:40,988 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 18:51:40,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 16 [2024-10-24 18:51:40,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678754414] [2024-10-24 18:51:40,989 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 18:51:40,989 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-10-24 18:51:40,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 18:51:40,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-10-24 18:51:40,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=214, Unknown=0, NotChecked=0, Total=272 [2024-10-24 18:51:41,001 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2024-10-24 18:51:41,002 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 76 transitions, 784 flow. Second operand has 17 states, 17 states have (on average 10.352941176470589) internal successors, (176), 17 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 18:51:41,002 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 18:51:41,002 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2024-10-24 18:51:41,002 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 18:51:41,891 INFO L124 PetriNetUnfolderBase]: 1453/2768 cut-off events. [2024-10-24 18:51:41,891 INFO L125 PetriNetUnfolderBase]: For 57987/57987 co-relation queries the response was YES. [2024-10-24 18:51:41,898 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14031 conditions, 2768 events. 1453/2768 cut-off events. For 57987/57987 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 15031 event pairs, 138 based on Foata normal form. 81/2845 useless extension candidates. Maximal degree in co-relation 13980. Up to 484 conditions per place. [2024-10-24 18:51:41,908 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 127 selfloop transitions, 82 changer transitions 91/304 dead transitions. [2024-10-24 18:51:41,908 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 304 transitions, 3738 flow [2024-10-24 18:51:41,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-10-24 18:51:41,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2024-10-24 18:51:41,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 489 transitions. [2024-10-24 18:51:41,910 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5269396551724138 [2024-10-24 18:51:41,910 INFO L175 Difference]: Start difference. First operand has 112 places, 76 transitions, 784 flow. Second operand 32 states and 489 transitions. [2024-10-24 18:51:41,910 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 304 transitions, 3738 flow [2024-10-24 18:51:41,946 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 304 transitions, 3141 flow, removed 289 selfloop flow, removed 13 redundant places. [2024-10-24 18:51:41,949 INFO L231 Difference]: Finished difference. Result has 144 places, 122 transitions, 1575 flow [2024-10-24 18:51:41,949 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=637, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=44, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=32, PETRI_FLOW=1575, PETRI_PLACES=144, PETRI_TRANSITIONS=122} [2024-10-24 18:51:41,950 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 114 predicate places. [2024-10-24 18:51:41,950 INFO L471 AbstractCegarLoop]: Abstraction has has 144 places, 122 transitions, 1575 flow [2024-10-24 18:51:41,950 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 10.352941176470589) internal successors, (176), 17 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 18:51:41,951 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 18:51:41,951 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 18:51:41,966 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-24 18:51:42,151 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 18:51:42,152 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-24 18:51:42,152 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:51:42,152 INFO L85 PathProgramCache]: Analyzing trace with hash 1976850896, now seen corresponding path program 3 times [2024-10-24 18:51:42,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 18:51:42,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533442236] [2024-10-24 18:51:42,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:51:42,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 18:51:42,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:51:42,289 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-24 18:51:42,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 18:51:42,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533442236] [2024-10-24 18:51:42,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1533442236] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 18:51:42,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [552024173] [2024-10-24 18:51:42,290 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-24 18:51:42,290 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 18:51:42,290 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 18:51:42,294 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) [2024-10-24 18:51:42,295 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-24 18:51:42,346 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-10-24 18:51:42,347 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 18:51:42,348 INFO L255 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-10-24 18:51:42,349 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 18:51:42,399 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-24 18:51:42,399 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 18:51:42,485 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-24 18:51:42,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [552024173] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 18:51:42,485 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 18:51:42,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 16 [2024-10-24 18:51:42,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222147070] [2024-10-24 18:51:42,486 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 18:51:42,486 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-10-24 18:51:42,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 18:51:42,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-10-24 18:51:42,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=210, Unknown=0, NotChecked=0, Total=272 [2024-10-24 18:51:42,510 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2024-10-24 18:51:42,511 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 122 transitions, 1575 flow. Second operand has 17 states, 17 states have (on average 10.352941176470589) internal successors, (176), 17 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 18:51:42,511 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 18:51:42,511 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2024-10-24 18:51:42,511 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 18:51:43,672 INFO L124 PetriNetUnfolderBase]: 2047/3859 cut-off events. [2024-10-24 18:51:43,673 INFO L125 PetriNetUnfolderBase]: For 146492/146492 co-relation queries the response was YES. [2024-10-24 18:51:43,688 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22735 conditions, 3859 events. 2047/3859 cut-off events. For 146492/146492 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 22561 event pairs, 96 based on Foata normal form. 117/3972 useless extension candidates. Maximal degree in co-relation 22669. Up to 561 conditions per place. [2024-10-24 18:51:43,705 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 131 selfloop transitions, 129 changer transitions 113/377 dead transitions. [2024-10-24 18:51:43,706 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 377 transitions, 5732 flow [2024-10-24 18:51:43,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-10-24 18:51:43,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2024-10-24 18:51:43,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 535 transitions. [2024-10-24 18:51:43,709 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5270935960591133 [2024-10-24 18:51:43,709 INFO L175 Difference]: Start difference. First operand has 144 places, 122 transitions, 1575 flow. Second operand 35 states and 535 transitions. [2024-10-24 18:51:43,710 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 377 transitions, 5732 flow [2024-10-24 18:51:43,858 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 377 transitions, 4879 flow, removed 410 selfloop flow, removed 15 redundant places. [2024-10-24 18:51:43,862 INFO L231 Difference]: Finished difference. Result has 176 places, 169 transitions, 2497 flow [2024-10-24 18:51:43,862 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=1250, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=86, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=35, PETRI_FLOW=2497, PETRI_PLACES=176, PETRI_TRANSITIONS=169} [2024-10-24 18:51:43,863 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 146 predicate places. [2024-10-24 18:51:43,863 INFO L471 AbstractCegarLoop]: Abstraction has has 176 places, 169 transitions, 2497 flow [2024-10-24 18:51:43,863 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 10.352941176470589) internal successors, (176), 17 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 18:51:43,863 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 18:51:43,864 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 18:51:43,880 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-24 18:51:44,067 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 18:51:44,068 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-24 18:51:44,068 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:51:44,069 INFO L85 PathProgramCache]: Analyzing trace with hash -690914415, now seen corresponding path program 4 times [2024-10-24 18:51:44,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 18:51:44,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863204932] [2024-10-24 18:51:44,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:51:44,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 18:51:44,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:51:44,240 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 18:51:44,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 18:51:44,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863204932] [2024-10-24 18:51:44,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [863204932] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 18:51:44,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [132699422] [2024-10-24 18:51:44,241 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-24 18:51:44,242 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 18:51:44,242 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 18:51:44,244 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) [2024-10-24 18:51:44,245 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-24 18:51:44,290 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-24 18:51:44,290 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 18:51:44,291 INFO L255 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-10-24 18:51:44,292 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 18:51:44,347 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 18:51:44,348 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 18:51:44,516 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 18:51:44,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [132699422] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 18:51:44,517 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 18:51:44,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 25 [2024-10-24 18:51:44,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122158435] [2024-10-24 18:51:44,517 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 18:51:44,517 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-10-24 18:51:44,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 18:51:44,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-10-24 18:51:44,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=148, Invalid=502, Unknown=0, NotChecked=0, Total=650 [2024-10-24 18:51:44,549 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2024-10-24 18:51:44,550 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 169 transitions, 2497 flow. Second operand has 26 states, 26 states have (on average 10.038461538461538) internal successors, (261), 26 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) [2024-10-24 18:51:44,550 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 18:51:44,550 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2024-10-24 18:51:44,550 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 18:51:46,637 INFO L124 PetriNetUnfolderBase]: 3406/6272 cut-off events. [2024-10-24 18:51:46,637 INFO L125 PetriNetUnfolderBase]: For 377552/377552 co-relation queries the response was YES. [2024-10-24 18:51:46,666 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45216 conditions, 6272 events. 3406/6272 cut-off events. For 377552/377552 co-relation queries the response was YES. Maximal size of possible extension queue 142. Compared 36125 event pairs, 89 based on Foata normal form. 117/6383 useless extension candidates. Maximal degree in co-relation 45139. Up to 1008 conditions per place. [2024-10-24 18:51:46,691 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 170 selfloop transitions, 223 changer transitions 160/557 dead transitions. [2024-10-24 18:51:46,691 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 217 places, 557 transitions, 11321 flow [2024-10-24 18:51:46,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2024-10-24 18:51:46,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2024-10-24 18:51:46,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 781 transitions. [2024-10-24 18:51:46,694 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5280594996619338 [2024-10-24 18:51:46,694 INFO L175 Difference]: Start difference. First operand has 176 places, 169 transitions, 2497 flow. Second operand 51 states and 781 transitions. [2024-10-24 18:51:46,694 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 217 places, 557 transitions, 11321 flow [2024-10-24 18:51:47,301 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 198 places, 557 transitions, 9120 flow, removed 1070 selfloop flow, removed 19 redundant places. [2024-10-24 18:51:47,309 INFO L231 Difference]: Finished difference. Result has 230 places, 279 transitions, 5255 flow [2024-10-24 18:51:47,309 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=1976, PETRI_DIFFERENCE_MINUEND_PLACES=148, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=169, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=131, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=51, PETRI_FLOW=5255, PETRI_PLACES=230, PETRI_TRANSITIONS=279} [2024-10-24 18:51:47,310 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 200 predicate places. [2024-10-24 18:51:47,310 INFO L471 AbstractCegarLoop]: Abstraction has has 230 places, 279 transitions, 5255 flow [2024-10-24 18:51:47,310 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 10.038461538461538) internal successors, (261), 26 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) [2024-10-24 18:51:47,310 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 18:51:47,310 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 9, 8, 8, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 18:51:47,323 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-24 18:51:47,511 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-10-24 18:51:47,511 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-24 18:51:47,511 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:51:47,512 INFO L85 PathProgramCache]: Analyzing trace with hash 1714219090, now seen corresponding path program 5 times [2024-10-24 18:51:47,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 18:51:47,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559330807] [2024-10-24 18:51:47,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:51:47,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 18:51:47,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:51:47,933 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 0 proven. 202 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-24 18:51:47,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 18:51:47,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559330807] [2024-10-24 18:51:47,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559330807] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 18:51:47,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1301659571] [2024-10-24 18:51:47,933 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-24 18:51:47,934 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 18:51:47,934 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 18:51:47,935 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) [2024-10-24 18:51:47,936 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-24 18:51:47,995 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 12 check-sat command(s) [2024-10-24 18:51:47,995 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 18:51:47,996 INFO L255 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-10-24 18:51:47,998 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 18:51:48,168 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 0 proven. 202 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-24 18:51:48,169 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 18:51:48,505 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 0 proven. 202 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-24 18:51:48,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1301659571] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 18:51:48,505 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 18:51:48,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21, 21] total 28 [2024-10-24 18:51:48,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194337551] [2024-10-24 18:51:48,505 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 18:51:48,506 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-10-24 18:51:48,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 18:51:48,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-10-24 18:51:48,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=619, Unknown=0, NotChecked=0, Total=812 [2024-10-24 18:51:48,518 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2024-10-24 18:51:48,518 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 230 places, 279 transitions, 5255 flow. Second operand has 29 states, 29 states have (on average 10.310344827586206) internal successors, (299), 29 states have internal predecessors, (299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 18:51:48,518 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 18:51:48,518 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2024-10-24 18:51:48,519 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 18:51:50,373 INFO L124 PetriNetUnfolderBase]: 3496/6614 cut-off events. [2024-10-24 18:51:50,374 INFO L125 PetriNetUnfolderBase]: For 529752/529752 co-relation queries the response was YES. [2024-10-24 18:51:50,403 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49094 conditions, 6614 events. 3496/6614 cut-off events. For 529752/529752 co-relation queries the response was YES. Maximal size of possible extension queue 144. Compared 39484 event pairs, 1349 based on Foata normal form. 81/6691 useless extension candidates. Maximal degree in co-relation 48993. Up to 4788 conditions per place. [2024-10-24 18:51:50,422 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 332 selfloop transitions, 49 changer transitions 113/498 dead transitions. [2024-10-24 18:51:50,423 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 253 places, 498 transitions, 11033 flow [2024-10-24 18:51:50,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-10-24 18:51:50,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2024-10-24 18:51:50,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 544 transitions. [2024-10-24 18:51:50,427 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5069897483690587 [2024-10-24 18:51:50,428 INFO L175 Difference]: Start difference. First operand has 230 places, 279 transitions, 5255 flow. Second operand 37 states and 544 transitions. [2024-10-24 18:51:50,428 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 253 places, 498 transitions, 11033 flow [2024-10-24 18:51:51,308 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 234 places, 498 transitions, 7431 flow, removed 1776 selfloop flow, removed 19 redundant places. [2024-10-24 18:51:51,313 INFO L231 Difference]: Finished difference. Result has 253 places, 297 transitions, 4066 flow [2024-10-24 18:51:51,314 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=3425, PETRI_DIFFERENCE_MINUEND_PLACES=198, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=279, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=240, PETRI_DIFFERENCE_SUBTRAHEND_STATES=37, PETRI_FLOW=4066, PETRI_PLACES=253, PETRI_TRANSITIONS=297} [2024-10-24 18:51:51,314 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 223 predicate places. [2024-10-24 18:51:51,314 INFO L471 AbstractCegarLoop]: Abstraction has has 253 places, 297 transitions, 4066 flow [2024-10-24 18:51:51,315 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 10.310344827586206) internal successors, (299), 29 states have internal predecessors, (299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 18:51:51,315 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 18:51:51,315 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 9, 8, 8, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 18:51:51,327 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-10-24 18:51:51,515 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 18:51:51,516 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-24 18:51:51,516 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:51:51,516 INFO L85 PathProgramCache]: Analyzing trace with hash 22762492, now seen corresponding path program 6 times [2024-10-24 18:51:51,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 18:51:51,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845084891] [2024-10-24 18:51:51,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:51:51,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 18:51:51,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:51:51,877 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 0 proven. 202 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-24 18:51:51,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 18:51:51,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845084891] [2024-10-24 18:51:51,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1845084891] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 18:51:51,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1394783753] [2024-10-24 18:51:51,878 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-10-24 18:51:51,878 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 18:51:51,878 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 18:51:51,879 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) [2024-10-24 18:51:51,880 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-24 18:51:51,934 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 10 check-sat command(s) [2024-10-24 18:51:51,934 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 18:51:51,935 INFO L255 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-10-24 18:51:51,937 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 18:51:52,101 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 0 proven. 202 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-24 18:51:52,102 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 18:51:52,451 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 0 proven. 202 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-24 18:51:52,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1394783753] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 18:51:52,451 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 18:51:52,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21, 21] total 30 [2024-10-24 18:51:52,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230881681] [2024-10-24 18:51:52,452 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 18:51:52,452 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-10-24 18:51:52,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 18:51:52,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-10-24 18:51:52,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=187, Invalid=743, Unknown=0, NotChecked=0, Total=930 [2024-10-24 18:51:52,468 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2024-10-24 18:51:52,469 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 253 places, 297 transitions, 4066 flow. Second operand has 31 states, 31 states have (on average 10.290322580645162) internal successors, (319), 31 states have internal predecessors, (319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 18:51:52,469 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 18:51:52,469 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2024-10-24 18:51:52,469 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 18:51:54,560 INFO L124 PetriNetUnfolderBase]: 4018/7805 cut-off events. [2024-10-24 18:51:54,560 INFO L125 PetriNetUnfolderBase]: For 474448/474448 co-relation queries the response was YES. [2024-10-24 18:51:54,688 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47911 conditions, 7805 events. 4018/7805 cut-off events. For 474448/474448 co-relation queries the response was YES. Maximal size of possible extension queue 151. Compared 48694 event pairs, 870 based on Foata normal form. 81/7882 useless extension candidates. Maximal degree in co-relation 47803. Up to 3568 conditions per place. [2024-10-24 18:51:54,715 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 316 selfloop transitions, 170 changer transitions 127/617 dead transitions. [2024-10-24 18:51:54,716 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 287 places, 617 transitions, 10034 flow [2024-10-24 18:51:54,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2024-10-24 18:51:54,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2024-10-24 18:51:54,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 651 transitions. [2024-10-24 18:51:54,718 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5101880877742947 [2024-10-24 18:51:54,718 INFO L175 Difference]: Start difference. First operand has 253 places, 297 transitions, 4066 flow. Second operand 44 states and 651 transitions. [2024-10-24 18:51:54,718 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 287 places, 617 transitions, 10034 flow [2024-10-24 18:51:55,557 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 264 places, 617 transitions, 9259 flow, removed 360 selfloop flow, removed 23 redundant places. [2024-10-24 18:51:55,563 INFO L231 Difference]: Finished difference. Result has 285 places, 354 transitions, 5237 flow [2024-10-24 18:51:55,564 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=3643, PETRI_DIFFERENCE_MINUEND_PLACES=221, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=297, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=121, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=159, PETRI_DIFFERENCE_SUBTRAHEND_STATES=44, PETRI_FLOW=5237, PETRI_PLACES=285, PETRI_TRANSITIONS=354} [2024-10-24 18:51:55,564 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 255 predicate places. [2024-10-24 18:51:55,564 INFO L471 AbstractCegarLoop]: Abstraction has has 285 places, 354 transitions, 5237 flow [2024-10-24 18:51:55,565 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 10.290322580645162) internal successors, (319), 31 states have internal predecessors, (319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 18:51:55,565 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 18:51:55,565 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 9, 8, 8, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 18:51:55,577 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-10-24 18:51:55,766 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 18:51:55,766 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-24 18:51:55,767 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:51:55,767 INFO L85 PathProgramCache]: Analyzing trace with hash 249518812, now seen corresponding path program 7 times [2024-10-24 18:51:55,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 18:51:55,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75254771] [2024-10-24 18:51:55,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:51:55,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 18:51:55,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:51:56,122 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 0 proven. 201 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-24 18:51:56,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 18:51:56,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75254771] [2024-10-24 18:51:56,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [75254771] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 18:51:56,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1297861148] [2024-10-24 18:51:56,123 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-10-24 18:51:56,123 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 18:51:56,123 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 18:51:56,124 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) [2024-10-24 18:51:56,126 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-24 18:51:56,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:51:56,176 INFO L255 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-10-24 18:51:56,178 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 18:51:56,370 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 0 proven. 201 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-24 18:51:56,370 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 18:51:56,672 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 0 proven. 201 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-24 18:51:56,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1297861148] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 18:51:56,672 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 18:51:56,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21, 21] total 34 [2024-10-24 18:51:56,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330761365] [2024-10-24 18:51:56,672 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 18:51:56,673 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2024-10-24 18:51:56,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 18:51:56,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2024-10-24 18:51:56,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=191, Invalid=999, Unknown=0, NotChecked=0, Total=1190 [2024-10-24 18:51:56,681 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2024-10-24 18:51:56,681 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 285 places, 354 transitions, 5237 flow. Second operand has 35 states, 35 states have (on average 10.285714285714286) internal successors, (360), 35 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 18:51:56,681 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 18:51:56,681 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2024-10-24 18:51:56,681 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 18:51:59,303 INFO L124 PetriNetUnfolderBase]: 4729/9227 cut-off events. [2024-10-24 18:51:59,303 INFO L125 PetriNetUnfolderBase]: For 703460/703460 co-relation queries the response was YES. [2024-10-24 18:51:59,361 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61107 conditions, 9227 events. 4729/9227 cut-off events. For 703460/703460 co-relation queries the response was YES. Maximal size of possible extension queue 149. Compared 58619 event pairs, 186 based on Foata normal form. 81/9304 useless extension candidates. Maximal degree in co-relation 60986. Up to 1266 conditions per place. [2024-10-24 18:51:59,465 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 222 selfloop transitions, 349 changer transitions 139/714 dead transitions. [2024-10-24 18:51:59,465 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 325 places, 714 transitions, 12839 flow [2024-10-24 18:51:59,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2024-10-24 18:51:59,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2024-10-24 18:51:59,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 749 transitions. [2024-10-24 18:51:59,470 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.516551724137931 [2024-10-24 18:51:59,470 INFO L175 Difference]: Start difference. First operand has 285 places, 354 transitions, 5237 flow. Second operand 50 states and 749 transitions. [2024-10-24 18:51:59,470 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 325 places, 714 transitions, 12839 flow [2024-10-24 18:52:00,640 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 295 places, 714 transitions, 11485 flow, removed 589 selfloop flow, removed 30 redundant places. [2024-10-24 18:52:00,647 INFO L231 Difference]: Finished difference. Result has 319 places, 424 transitions, 7004 flow [2024-10-24 18:52:00,648 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=4563, PETRI_DIFFERENCE_MINUEND_PLACES=246, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=354, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=289, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=50, PETRI_FLOW=7004, PETRI_PLACES=319, PETRI_TRANSITIONS=424} [2024-10-24 18:52:00,648 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 289 predicate places. [2024-10-24 18:52:00,648 INFO L471 AbstractCegarLoop]: Abstraction has has 319 places, 424 transitions, 7004 flow [2024-10-24 18:52:00,648 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 10.285714285714286) internal successors, (360), 35 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 18:52:00,648 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 18:52:00,649 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 9, 8, 8, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 18:52:00,666 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-10-24 18:52:00,852 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-10-24 18:52:00,852 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-24 18:52:00,853 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:52:00,853 INFO L85 PathProgramCache]: Analyzing trace with hash 1096510394, now seen corresponding path program 8 times [2024-10-24 18:52:00,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 18:52:00,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816088120] [2024-10-24 18:52:00,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:52:00,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 18:52:00,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:52:01,229 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 0 proven. 201 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-24 18:52:01,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 18:52:01,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816088120] [2024-10-24 18:52:01,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816088120] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 18:52:01,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1923882797] [2024-10-24 18:52:01,230 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-24 18:52:01,230 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 18:52:01,231 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 18:52:01,232 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) [2024-10-24 18:52:01,233 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-10-24 18:52:01,281 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-24 18:52:01,281 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 18:52:01,282 INFO L255 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-10-24 18:52:01,284 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 18:52:01,359 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 0 proven. 201 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-24 18:52:01,360 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 18:52:01,623 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 0 proven. 201 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-24 18:52:01,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1923882797] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 18:52:01,623 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 18:52:01,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21, 21] total 33 [2024-10-24 18:52:01,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565074841] [2024-10-24 18:52:01,624 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 18:52:01,624 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-10-24 18:52:01,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 18:52:01,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-10-24 18:52:01,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=192, Invalid=930, Unknown=0, NotChecked=0, Total=1122 [2024-10-24 18:52:01,644 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2024-10-24 18:52:01,645 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 319 places, 424 transitions, 7004 flow. Second operand has 34 states, 34 states have (on average 10.205882352941176) internal successors, (347), 34 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 18:52:01,645 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 18:52:01,645 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2024-10-24 18:52:01,645 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 18:52:05,331 INFO L124 PetriNetUnfolderBase]: 5980/11511 cut-off events. [2024-10-24 18:52:05,332 INFO L125 PetriNetUnfolderBase]: For 1143538/1143538 co-relation queries the response was YES. [2024-10-24 18:52:05,422 INFO L83 FinitePrefix]: Finished finitePrefix Result has 84248 conditions, 11511 events. 5980/11511 cut-off events. For 1143538/1143538 co-relation queries the response was YES. Maximal size of possible extension queue 151. Compared 74482 event pairs, 96 based on Foata normal form. 81/11588 useless extension candidates. Maximal degree in co-relation 84111. Up to 1620 conditions per place. [2024-10-24 18:52:05,458 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 262 selfloop transitions, 444 changer transitions 137/847 dead transitions. [2024-10-24 18:52:05,458 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 366 places, 847 transitions, 16361 flow [2024-10-24 18:52:05,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2024-10-24 18:52:05,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2024-10-24 18:52:05,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 869 transitions. [2024-10-24 18:52:05,461 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5257108287961283 [2024-10-24 18:52:05,461 INFO L175 Difference]: Start difference. First operand has 319 places, 424 transitions, 7004 flow. Second operand 57 states and 869 transitions. [2024-10-24 18:52:05,461 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 366 places, 847 transitions, 16361 flow [2024-10-24 18:52:07,380 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 344 places, 847 transitions, 14146 flow, removed 1055 selfloop flow, removed 22 redundant places. [2024-10-24 18:52:07,390 INFO L231 Difference]: Finished difference. Result has 369 places, 504 transitions, 8949 flow [2024-10-24 18:52:07,391 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=6065, PETRI_DIFFERENCE_MINUEND_PLACES=288, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=424, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=374, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=57, PETRI_FLOW=8949, PETRI_PLACES=369, PETRI_TRANSITIONS=504} [2024-10-24 18:52:07,391 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 339 predicate places. [2024-10-24 18:52:07,391 INFO L471 AbstractCegarLoop]: Abstraction has has 369 places, 504 transitions, 8949 flow [2024-10-24 18:52:07,392 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 10.205882352941176) internal successors, (347), 34 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 18:52:07,392 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 18:52:07,392 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 9, 9, 9, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 18:52:07,412 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-10-24 18:52:07,592 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-10-24 18:52:07,593 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-24 18:52:07,593 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:52:07,593 INFO L85 PathProgramCache]: Analyzing trace with hash 566196863, now seen corresponding path program 9 times [2024-10-24 18:52:07,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 18:52:07,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339296498] [2024-10-24 18:52:07,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:52:07,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 18:52:07,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:52:07,904 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 0 proven. 224 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-24 18:52:07,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 18:52:07,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339296498] [2024-10-24 18:52:07,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339296498] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 18:52:07,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [831618894] [2024-10-24 18:52:07,905 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-24 18:52:07,905 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 18:52:07,905 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 18:52:07,906 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) [2024-10-24 18:52:07,907 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-10-24 18:52:07,965 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2024-10-24 18:52:07,965 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 18:52:07,966 INFO L255 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-10-24 18:52:07,968 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 18:52:08,053 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 0 proven. 224 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-24 18:52:08,053 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 18:52:08,257 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 0 proven. 224 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-24 18:52:08,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [831618894] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 18:52:08,257 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 18:52:08,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22, 22] total 28 [2024-10-24 18:52:08,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177803240] [2024-10-24 18:52:08,258 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 18:52:08,258 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-10-24 18:52:08,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 18:52:08,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-10-24 18:52:08,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=140, Invalid=672, Unknown=0, NotChecked=0, Total=812 [2024-10-24 18:52:08,268 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2024-10-24 18:52:08,268 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 369 places, 504 transitions, 8949 flow. Second operand has 29 states, 29 states have (on average 10.344827586206897) internal successors, (300), 29 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 18:52:08,268 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 18:52:08,268 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2024-10-24 18:52:08,268 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 18:52:12,106 INFO L124 PetriNetUnfolderBase]: 6205/12022 cut-off events. [2024-10-24 18:52:12,107 INFO L125 PetriNetUnfolderBase]: For 1358213/1358213 co-relation queries the response was YES. [2024-10-24 18:52:12,208 INFO L83 FinitePrefix]: Finished finitePrefix Result has 92381 conditions, 12022 events. 6205/12022 cut-off events. For 1358213/1358213 co-relation queries the response was YES. Maximal size of possible extension queue 156. Compared 78675 event pairs, 258 based on Foata normal form. 54/12072 useless extension candidates. Maximal degree in co-relation 92228. Up to 1734 conditions per place. [2024-10-24 18:52:12,260 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 219 selfloop transitions, 455 changer transitions 124/802 dead transitions. [2024-10-24 18:52:12,260 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 410 places, 802 transitions, 16439 flow [2024-10-24 18:52:12,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2024-10-24 18:52:12,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2024-10-24 18:52:12,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 771 transitions. [2024-10-24 18:52:12,262 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5212981744421906 [2024-10-24 18:52:12,262 INFO L175 Difference]: Start difference. First operand has 369 places, 504 transitions, 8949 flow. Second operand 51 states and 771 transitions. [2024-10-24 18:52:12,262 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 410 places, 802 transitions, 16439 flow [2024-10-24 18:52:15,020 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 373 places, 802 transitions, 14275 flow, removed 830 selfloop flow, removed 37 redundant places. [2024-10-24 18:52:15,029 INFO L231 Difference]: Finished difference. Result has 386 places, 530 transitions, 9468 flow [2024-10-24 18:52:15,030 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=7477, PETRI_DIFFERENCE_MINUEND_PLACES=323, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=504, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=430, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=51, PETRI_FLOW=9468, PETRI_PLACES=386, PETRI_TRANSITIONS=530} [2024-10-24 18:52:15,030 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 356 predicate places. [2024-10-24 18:52:15,030 INFO L471 AbstractCegarLoop]: Abstraction has has 386 places, 530 transitions, 9468 flow [2024-10-24 18:52:15,030 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 10.344827586206897) internal successors, (300), 29 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 18:52:15,030 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 18:52:15,030 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 9, 9, 9, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 18:52:15,043 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-10-24 18:52:15,231 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-10-24 18:52:15,231 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-24 18:52:15,231 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:52:15,231 INFO L85 PathProgramCache]: Analyzing trace with hash -45509489, now seen corresponding path program 10 times [2024-10-24 18:52:15,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 18:52:15,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906738001] [2024-10-24 18:52:15,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:52:15,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 18:52:15,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:52:15,484 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 0 proven. 226 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 18:52:15,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 18:52:15,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906738001] [2024-10-24 18:52:15,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906738001] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 18:52:15,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2126894859] [2024-10-24 18:52:15,485 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-24 18:52:15,485 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 18:52:15,485 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 18:52:15,486 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) [2024-10-24 18:52:15,487 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-10-24 18:52:15,535 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-24 18:52:15,535 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 18:52:15,536 INFO L255 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-10-24 18:52:15,537 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 18:52:15,598 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 0 proven. 226 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 18:52:15,598 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 18:52:15,833 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 0 proven. 226 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 18:52:15,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2126894859] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 18:52:15,833 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 18:52:15,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 30 [2024-10-24 18:52:15,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349590993] [2024-10-24 18:52:15,834 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 18:52:15,834 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-10-24 18:52:15,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 18:52:15,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-10-24 18:52:15,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=737, Unknown=0, NotChecked=0, Total=930 [2024-10-24 18:52:15,848 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2024-10-24 18:52:15,848 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 386 places, 530 transitions, 9468 flow. Second operand has 31 states, 31 states have (on average 10.129032258064516) internal successors, (314), 31 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 18:52:15,848 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 18:52:15,848 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2024-10-24 18:52:15,848 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 18:52:19,904 INFO L124 PetriNetUnfolderBase]: 6268/12108 cut-off events. [2024-10-24 18:52:19,904 INFO L125 PetriNetUnfolderBase]: For 1492952/1492952 co-relation queries the response was YES. [2024-10-24 18:52:20,011 INFO L83 FinitePrefix]: Finished finitePrefix Result has 94903 conditions, 12108 events. 6268/12108 cut-off events. For 1492952/1492952 co-relation queries the response was YES. Maximal size of possible extension queue 151. Compared 79017 event pairs, 58 based on Foata normal form. 117/12221 useless extension candidates. Maximal degree in co-relation 94747. Up to 1758 conditions per place. [2024-10-24 18:52:20,065 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 248 selfloop transitions, 488 changer transitions 151/891 dead transitions. [2024-10-24 18:52:20,065 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 437 places, 891 transitions, 18278 flow [2024-10-24 18:52:20,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2024-10-24 18:52:20,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2024-10-24 18:52:20,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 879 transitions. [2024-10-24 18:52:20,067 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5225921521997622 [2024-10-24 18:52:20,067 INFO L175 Difference]: Start difference. First operand has 386 places, 530 transitions, 9468 flow. Second operand 58 states and 879 transitions. [2024-10-24 18:52:20,067 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 437 places, 891 transitions, 18278 flow [2024-10-24 18:52:23,197 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 412 places, 891 transitions, 16884 flow, removed 528 selfloop flow, removed 25 redundant places. [2024-10-24 18:52:23,207 INFO L231 Difference]: Finished difference. Result has 429 places, 543 transitions, 10503 flow [2024-10-24 18:52:23,207 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=8466, PETRI_DIFFERENCE_MINUEND_PLACES=355, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=530, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=476, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=58, PETRI_FLOW=10503, PETRI_PLACES=429, PETRI_TRANSITIONS=543} [2024-10-24 18:52:23,207 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 399 predicate places. [2024-10-24 18:52:23,208 INFO L471 AbstractCegarLoop]: Abstraction has has 429 places, 543 transitions, 10503 flow [2024-10-24 18:52:23,208 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 10.129032258064516) internal successors, (314), 31 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 18:52:23,208 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 18:52:23,208 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 11, 10, 10, 10, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 18:52:23,221 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-10-24 18:52:23,408 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-10-24 18:52:23,408 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-24 18:52:23,409 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:52:23,409 INFO L85 PathProgramCache]: Analyzing trace with hash 253146827, now seen corresponding path program 11 times [2024-10-24 18:52:23,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 18:52:23,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703752390] [2024-10-24 18:52:23,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:52:23,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 18:52:23,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:52:23,522 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 244 proven. 36 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-24 18:52:23,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 18:52:23,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703752390] [2024-10-24 18:52:23,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703752390] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 18:52:23,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [446306598] [2024-10-24 18:52:23,523 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-24 18:52:23,523 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 18:52:23,523 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 18:52:23,524 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) [2024-10-24 18:52:23,526 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-10-24 18:52:23,580 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 16 check-sat command(s) [2024-10-24 18:52:23,581 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 18:52:23,582 INFO L255 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-10-24 18:52:23,583 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 18:52:23,631 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 280 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-24 18:52:23,631 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 18:52:23,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [446306598] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 18:52:23,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 18:52:23,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [13] total 14 [2024-10-24 18:52:23,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932607888] [2024-10-24 18:52:23,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 18:52:23,631 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-24 18:52:23,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 18:52:23,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-24 18:52:23,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=101, Unknown=0, NotChecked=0, Total=182 [2024-10-24 18:52:23,633 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 29 [2024-10-24 18:52:23,634 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 429 places, 543 transitions, 10503 flow. Second operand has 13 states, 13 states have (on average 14.923076923076923) internal successors, (194), 13 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 18:52:23,634 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 18:52:23,634 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 29 [2024-10-24 18:52:23,634 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 18:52:35,417 INFO L124 PetriNetUnfolderBase]: 21262/41425 cut-off events. [2024-10-24 18:52:35,418 INFO L125 PetriNetUnfolderBase]: For 4707455/4709719 co-relation queries the response was YES. [2024-10-24 18:52:36,534 INFO L83 FinitePrefix]: Finished finitePrefix Result has 274655 conditions, 41425 events. 21262/41425 cut-off events. For 4707455/4709719 co-relation queries the response was YES. Maximal size of possible extension queue 885. Compared 379282 event pairs, 986 based on Foata normal form. 815/37504 useless extension candidates. Maximal degree in co-relation 274492. Up to 6704 conditions per place. [2024-10-24 18:52:36,579 INFO L140 encePairwiseOnDemand]: 25/29 looper letters, 0 selfloop transitions, 0 changer transitions 602/602 dead transitions. [2024-10-24 18:52:36,579 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 424 places, 602 transitions, 9608 flow [2024-10-24 18:52:36,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-24 18:52:36,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-10-24 18:52:36,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 263 transitions. [2024-10-24 18:52:36,580 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6976127320954907 [2024-10-24 18:52:36,580 INFO L175 Difference]: Start difference. First operand has 429 places, 543 transitions, 10503 flow. Second operand 13 states and 263 transitions. [2024-10-24 18:52:36,580 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 424 places, 602 transitions, 9608 flow [2024-10-24 18:52:40,701 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 351 places, 602 transitions, 8016 flow, removed 184 selfloop flow, removed 73 redundant places. [2024-10-24 18:52:40,705 INFO L231 Difference]: Finished difference. Result has 351 places, 0 transitions, 0 flow [2024-10-24 18:52:40,706 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=7594, PETRI_DIFFERENCE_MINUEND_PLACES=339, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=508, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=508, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=0, PETRI_PLACES=351, PETRI_TRANSITIONS=0} [2024-10-24 18:52:40,706 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 321 predicate places. [2024-10-24 18:52:40,706 INFO L471 AbstractCegarLoop]: Abstraction has has 351 places, 0 transitions, 0 flow [2024-10-24 18:52:40,706 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 14.923076923076923) internal successors, (194), 13 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 18:52:40,709 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (3 of 4 remaining) [2024-10-24 18:52:40,709 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (2 of 4 remaining) [2024-10-24 18:52:40,710 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2024-10-24 18:52:40,710 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2024-10-24 18:52:40,722 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-10-24 18:52:40,912 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-10-24 18:52:41,006 INFO L407 BasicCegarLoop]: Path program histogram: [11, 2, 2, 1, 1, 1] [2024-10-24 18:52:41,010 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-24 18:52:41,010 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-24 18:52:41,017 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 06:52:41 BasicIcfg [2024-10-24 18:52:41,018 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-24 18:52:41,018 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-24 18:52:41,018 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-24 18:52:41,018 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-24 18:52:41,019 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 06:51:36" (3/4) ... [2024-10-24 18:52:41,020 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-24 18:52:41,023 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t1 [2024-10-24 18:52:41,023 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t2 [2024-10-24 18:52:41,026 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 33 nodes and edges [2024-10-24 18:52:41,026 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2024-10-24 18:52:41,026 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-10-24 18:52:41,026 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-10-24 18:52:41,105 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-24 18:52:41,105 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-24 18:52:41,105 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-24 18:52:41,106 INFO L158 Benchmark]: Toolchain (without parser) took 65955.09ms. Allocated memory was 140.5MB in the beginning and 11.9GB in the end (delta: 11.7GB). Free memory was 91.1MB in the beginning and 9.0GB in the end (delta: -8.9GB). Peak memory consumption was 2.8GB. Max. memory is 16.1GB. [2024-10-24 18:52:41,106 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 140.5MB. Free memory is still 104.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 18:52:41,106 INFO L158 Benchmark]: CACSL2BoogieTranslator took 405.48ms. Allocated memory is still 140.5MB. Free memory was 91.1MB in the beginning and 69.7MB in the end (delta: 21.4MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-10-24 18:52:41,106 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.30ms. Allocated memory is still 140.5MB. Free memory was 69.7MB in the beginning and 67.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-24 18:52:41,106 INFO L158 Benchmark]: Boogie Preprocessor took 48.69ms. Allocated memory is still 140.5MB. Free memory was 67.6MB in the beginning and 65.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-24 18:52:41,107 INFO L158 Benchmark]: RCFGBuilder took 358.60ms. Allocated memory is still 140.5MB. Free memory was 65.6MB in the beginning and 46.8MB in the end (delta: 18.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-10-24 18:52:41,107 INFO L158 Benchmark]: TraceAbstraction took 65006.63ms. Allocated memory was 140.5MB in the beginning and 11.9GB in the end (delta: 11.7GB). Free memory was 46.2MB in the beginning and 9.0GB in the end (delta: -8.9GB). Peak memory consumption was 3.0GB. Max. memory is 16.1GB. [2024-10-24 18:52:41,107 INFO L158 Benchmark]: Witness Printer took 87.25ms. Allocated memory is still 11.9GB. Free memory was 9.0GB in the beginning and 9.0GB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-24 18:52:41,108 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 140.5MB. Free memory is still 104.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 405.48ms. Allocated memory is still 140.5MB. Free memory was 91.1MB in the beginning and 69.7MB in the end (delta: 21.4MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.30ms. Allocated memory is still 140.5MB. Free memory was 69.7MB in the beginning and 67.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.69ms. Allocated memory is still 140.5MB. Free memory was 67.6MB in the beginning and 65.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 358.60ms. Allocated memory is still 140.5MB. Free memory was 65.6MB in the beginning and 46.8MB in the end (delta: 18.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 65006.63ms. Allocated memory was 140.5MB in the beginning and 11.9GB in the end (delta: 11.7GB). Free memory was 46.2MB in the beginning and 9.0GB in the end (delta: -8.9GB). Peak memory consumption was 3.0GB. Max. memory is 16.1GB. * Witness Printer took 87.25ms. Allocated memory is still 11.9GB. Free memory was 9.0GB in the beginning and 9.0GB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 711]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 693]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 38 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 64.9s, OverallIterations: 18, TraceHistogramMax: 11, PathProgramHistogramMax: 11, EmptinessCheckTime: 0.0s, AutomataDifference: 54.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 6244 SdHoareTripleChecker+Valid, 4.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6217 mSDsluCounter, 92 SdHoareTripleChecker+Invalid, 3.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 83 mSDsCounter, 376 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7312 IncrementalHoareTripleChecker+Invalid, 7688 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 376 mSolverCounterUnsat, 9 mSDtfsCounter, 7312 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1744 GetRequests, 999 SyntacticMatches, 36 SemanticMatches, 709 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12291 ImplicationChecksByTransitivity, 7.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10503occurred in iteration=17, InterpolantAutomatonStates: 517, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 6.9s InterpolantComputationTime, 1284 NumberOfCodeBlocks, 1284 NumberOfCodeBlocksAsserted, 82 NumberOfCheckSat, 1773 ConstructedInterpolants, 0 QuantifiedInterpolants, 7663 SizeOfPredicates, 143 NumberOfNonLiveVariables, 1717 ConjunctsInSsa, 210 ConjunctsInUnsatCore, 41 InterpolantComputations, 7 PerfectInterpolantSequences, 568/4636 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-10-24 18:52:41,134 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE