./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-atomic/szymanski.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-atomic/szymanski.i -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 bc84ca2197caec735a8480f9d61b820c686ed9ae52711f2c7500999694c2ad40 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 19:26:56,611 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 19:26:56,669 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-11 19:26:56,673 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 19:26:56,674 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 19:26:56,696 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 19:26:56,697 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 19:26:56,697 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 19:26:56,697 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 19:26:56,698 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 19:26:56,698 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 19:26:56,699 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 19:26:56,699 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 19:26:56,700 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 19:26:56,701 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 19:26:56,701 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 19:26:56,701 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 19:26:56,701 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 19:26:56,701 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 19:26:56,702 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 19:26:56,702 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-11 19:26:56,704 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-11 19:26:56,705 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-11 19:26:56,705 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 19:26:56,705 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-11 19:26:56,705 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 19:26:56,705 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-11 19:26:56,705 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 19:26:56,706 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 19:26:56,706 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 19:26:56,706 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 19:26:56,706 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 19:26:56,706 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 19:26:56,706 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 19:26:56,706 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 19:26:56,706 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 19:26:56,707 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 19:26:56,707 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 19:26:56,707 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 19:26:56,707 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 19:26:56,707 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 19:26:56,708 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 19:26:56,708 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bc84ca2197caec735a8480f9d61b820c686ed9ae52711f2c7500999694c2ad40 [2024-10-11 19:26:56,899 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 19:26:56,919 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 19:26:56,921 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 19:26:56,922 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 19:26:56,922 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 19:26:56,923 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-atomic/szymanski.i [2024-10-11 19:26:58,148 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 19:26:58,359 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 19:26:58,360 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-atomic/szymanski.i [2024-10-11 19:26:58,373 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/e70b66e50/65493308dda8419fb94e29a0cc2ba2eb/FLAGdd24394bf [2024-10-11 19:26:58,709 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/e70b66e50/65493308dda8419fb94e29a0cc2ba2eb [2024-10-11 19:26:58,711 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 19:26:58,712 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 19:26:58,713 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 19:26:58,713 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 19:26:58,717 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 19:26:58,717 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 07:26:58" (1/1) ... [2024-10-11 19:26:58,718 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61307131 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:26:58, skipping insertion in model container [2024-10-11 19:26:58,718 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 07:26:58" (1/1) ... [2024-10-11 19:26:58,747 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 19:26:59,020 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 19:26:59,029 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 19:26:59,066 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 19:26:59,093 INFO L204 MainTranslator]: Completed translation [2024-10-11 19:26:59,094 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:26:59 WrapperNode [2024-10-11 19:26:59,094 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 19:26:59,095 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 19:26:59,095 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 19:26:59,095 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 19:26:59,100 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:26:59" (1/1) ... [2024-10-11 19:26:59,112 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:26:59" (1/1) ... [2024-10-11 19:26:59,131 INFO L138 Inliner]: procedures = 169, calls = 66, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 165 [2024-10-11 19:26:59,132 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 19:26:59,134 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 19:26:59,134 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 19:26:59,134 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 19:26:59,141 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:26:59" (1/1) ... [2024-10-11 19:26:59,141 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:26:59" (1/1) ... [2024-10-11 19:26:59,143 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:26:59" (1/1) ... [2024-10-11 19:26:59,158 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]. [2024-10-11 19:26:59,159 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:26:59" (1/1) ... [2024-10-11 19:26:59,159 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:26:59" (1/1) ... [2024-10-11 19:26:59,162 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:26:59" (1/1) ... [2024-10-11 19:26:59,164 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:26:59" (1/1) ... [2024-10-11 19:26:59,165 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:26:59" (1/1) ... [2024-10-11 19:26:59,166 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:26:59" (1/1) ... [2024-10-11 19:26:59,168 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 19:26:59,168 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 19:26:59,168 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 19:26:59,168 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 19:26:59,169 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:26:59" (1/1) ... [2024-10-11 19:26:59,179 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 19:26:59,187 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 19:26:59,201 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 19:26:59,203 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 19:26:59,238 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2024-10-11 19:26:59,239 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2024-10-11 19:26:59,239 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2024-10-11 19:26:59,239 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2024-10-11 19:26:59,239 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-11 19:26:59,239 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 19:26:59,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 19:26:59,239 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-11 19:26:59,240 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 19:26:59,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 19:26:59,241 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-11 19:26:59,354 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 19:26:59,356 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 19:26:59,518 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-11 19:26:59,520 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 19:26:59,563 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 19:26:59,563 INFO L314 CfgBuilder]: Removed 8 assume(true) statements. [2024-10-11 19:26:59,563 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 07:26:59 BoogieIcfgContainer [2024-10-11 19:26:59,563 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 19:26:59,564 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 19:26:59,565 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 19:26:59,567 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 19:26:59,567 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 07:26:58" (1/3) ... [2024-10-11 19:26:59,568 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30ce2a5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 07:26:59, skipping insertion in model container [2024-10-11 19:26:59,568 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:26:59" (2/3) ... [2024-10-11 19:26:59,568 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30ce2a5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 07:26:59, skipping insertion in model container [2024-10-11 19:26:59,568 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 07:26:59" (3/3) ... [2024-10-11 19:26:59,569 INFO L112 eAbstractionObserver]: Analyzing ICFG szymanski.i [2024-10-11 19:26:59,580 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 19:26:59,580 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-10-11 19:26:59,580 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-11 19:26:59,615 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-11 19:26:59,649 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 71 places, 78 transitions, 170 flow [2024-10-11 19:26:59,676 INFO L124 PetriNetUnfolderBase]: 14/76 cut-off events. [2024-10-11 19:26:59,677 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-11 19:26:59,681 INFO L83 FinitePrefix]: Finished finitePrefix Result has 85 conditions, 76 events. 14/76 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 157 event pairs, 0 based on Foata normal form. 0/59 useless extension candidates. Maximal degree in co-relation 71. Up to 2 conditions per place. [2024-10-11 19:26:59,681 INFO L82 GeneralOperation]: Start removeDead. Operand has 71 places, 78 transitions, 170 flow [2024-10-11 19:26:59,685 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 68 places, 75 transitions, 162 flow [2024-10-11 19:26:59,691 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 19:26:59,697 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;@fe6e12c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 19:26:59,697 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-10-11 19:26:59,711 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-11 19:26:59,711 INFO L124 PetriNetUnfolderBase]: 11/55 cut-off events. [2024-10-11 19:26:59,712 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 19:26:59,712 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:26:59,712 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:26:59,713 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONMEMORY_LEAK === [thr2Err0ASSERT_VIOLATIONMEMORY_LEAK, thr1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-10-11 19:26:59,717 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:26:59,717 INFO L85 PathProgramCache]: Analyzing trace with hash 1585161988, now seen corresponding path program 1 times [2024-10-11 19:26:59,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:26:59,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255597113] [2024-10-11 19:26:59,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:26:59,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:26:59,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:26:59,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:26:59,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:26:59,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255597113] [2024-10-11 19:26:59,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255597113] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:26:59,908 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:26:59,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 19:26:59,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200375343] [2024-10-11 19:26:59,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:26:59,915 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 19:26:59,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:26:59,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 19:26:59,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 19:26:59,991 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 78 [2024-10-11 19:26:59,993 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 75 transitions, 162 flow. Second operand has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 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) [2024-10-11 19:26:59,994 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:26:59,994 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 78 [2024-10-11 19:26:59,995 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:27:00,100 INFO L124 PetriNetUnfolderBase]: 238/627 cut-off events. [2024-10-11 19:27:00,100 INFO L125 PetriNetUnfolderBase]: For 28/28 co-relation queries the response was YES. [2024-10-11 19:27:00,103 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1008 conditions, 627 events. 238/627 cut-off events. For 28/28 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 3635 event pairs, 60 based on Foata normal form. 81/640 useless extension candidates. Maximal degree in co-relation 921. Up to 177 conditions per place. [2024-10-11 19:27:00,106 INFO L140 encePairwiseOnDemand]: 69/78 looper letters, 28 selfloop transitions, 3 changer transitions 0/80 dead transitions. [2024-10-11 19:27:00,106 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 80 transitions, 240 flow [2024-10-11 19:27:00,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 19:27:00,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 19:27:00,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 198 transitions. [2024-10-11 19:27:00,115 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8461538461538461 [2024-10-11 19:27:00,117 INFO L175 Difference]: Start difference. First operand has 68 places, 75 transitions, 162 flow. Second operand 3 states and 198 transitions. [2024-10-11 19:27:00,117 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 80 transitions, 240 flow [2024-10-11 19:27:00,119 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 80 transitions, 228 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-10-11 19:27:00,122 INFO L231 Difference]: Finished difference. Result has 66 places, 70 transitions, 162 flow [2024-10-11 19:27:00,124 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=78, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=162, PETRI_PLACES=66, PETRI_TRANSITIONS=70} [2024-10-11 19:27:00,127 INFO L277 CegarLoopForPetriNet]: 68 programPoint places, -2 predicate places. [2024-10-11 19:27:00,127 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 70 transitions, 162 flow [2024-10-11 19:27:00,127 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 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) [2024-10-11 19:27:00,127 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:27:00,127 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:27:00,127 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 19:27:00,128 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr2Err0ASSERT_VIOLATIONMEMORY_LEAK === [thr2Err0ASSERT_VIOLATIONMEMORY_LEAK, thr1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-10-11 19:27:00,128 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:27:00,130 INFO L85 PathProgramCache]: Analyzing trace with hash 1048176469, now seen corresponding path program 1 times [2024-10-11 19:27:00,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:27:00,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428747250] [2024-10-11 19:27:00,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:27:00,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:27:00,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:27:00,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:27:00,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:27:00,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428747250] [2024-10-11 19:27:00,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1428747250] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:27:00,220 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:27:00,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 19:27:00,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888493600] [2024-10-11 19:27:00,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:27:00,222 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 19:27:00,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:27:00,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 19:27:00,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 19:27:00,227 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 78 [2024-10-11 19:27:00,229 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 70 transitions, 162 flow. Second operand has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:27:00,229 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:27:00,229 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 78 [2024-10-11 19:27:00,229 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:27:00,327 INFO L124 PetriNetUnfolderBase]: 233/620 cut-off events. [2024-10-11 19:27:00,327 INFO L125 PetriNetUnfolderBase]: For 137/137 co-relation queries the response was YES. [2024-10-11 19:27:00,329 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1091 conditions, 620 events. 233/620 cut-off events. For 137/137 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 3542 event pairs, 82 based on Foata normal form. 23/604 useless extension candidates. Maximal degree in co-relation 387. Up to 215 conditions per place. [2024-10-11 19:27:00,331 INFO L140 encePairwiseOnDemand]: 74/78 looper letters, 28 selfloop transitions, 2 changer transitions 0/79 dead transitions. [2024-10-11 19:27:00,331 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 79 transitions, 242 flow [2024-10-11 19:27:00,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 19:27:00,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 19:27:00,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 191 transitions. [2024-10-11 19:27:00,334 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8162393162393162 [2024-10-11 19:27:00,335 INFO L175 Difference]: Start difference. First operand has 66 places, 70 transitions, 162 flow. Second operand 3 states and 191 transitions. [2024-10-11 19:27:00,335 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 79 transitions, 242 flow [2024-10-11 19:27:00,336 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 79 transitions, 236 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 19:27:00,338 INFO L231 Difference]: Finished difference. Result has 67 places, 70 transitions, 166 flow [2024-10-11 19:27:00,338 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=78, PETRI_DIFFERENCE_MINUEND_FLOW=156, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=166, PETRI_PLACES=67, PETRI_TRANSITIONS=70} [2024-10-11 19:27:00,339 INFO L277 CegarLoopForPetriNet]: 68 programPoint places, -1 predicate places. [2024-10-11 19:27:00,339 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 70 transitions, 166 flow [2024-10-11 19:27:00,339 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:27:00,340 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:27:00,340 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:27:00,340 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 19:27:00,340 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONMEMORY_LEAK === [thr2Err0ASSERT_VIOLATIONMEMORY_LEAK, thr1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-10-11 19:27:00,340 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:27:00,340 INFO L85 PathProgramCache]: Analyzing trace with hash -1666726292, now seen corresponding path program 1 times [2024-10-11 19:27:00,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:27:00,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56802190] [2024-10-11 19:27:00,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:27:00,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:27:00,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:27:00,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:27:00,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:27:00,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56802190] [2024-10-11 19:27:00,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56802190] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:27:00,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:27:00,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 19:27:00,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438656256] [2024-10-11 19:27:00,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:27:00,417 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 19:27:00,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:27:00,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 19:27:00,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 19:27:00,465 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 78 [2024-10-11 19:27:00,466 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 70 transitions, 166 flow. Second operand has 4 states, 4 states have (on average 41.75) internal successors, (167), 4 states have internal predecessors, (167), 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) [2024-10-11 19:27:00,466 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:27:00,467 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 78 [2024-10-11 19:27:00,467 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:27:00,686 INFO L124 PetriNetUnfolderBase]: 787/1647 cut-off events. [2024-10-11 19:27:00,686 INFO L125 PetriNetUnfolderBase]: For 256/256 co-relation queries the response was YES. [2024-10-11 19:27:00,689 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3072 conditions, 1647 events. 787/1647 cut-off events. For 256/256 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 9612 event pairs, 298 based on Foata normal form. 33/1621 useless extension candidates. Maximal degree in co-relation 1634. Up to 664 conditions per place. [2024-10-11 19:27:00,694 INFO L140 encePairwiseOnDemand]: 62/78 looper letters, 67 selfloop transitions, 19 changer transitions 0/120 dead transitions. [2024-10-11 19:27:00,694 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 120 transitions, 457 flow [2024-10-11 19:27:00,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 19:27:00,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-11 19:27:00,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 282 transitions. [2024-10-11 19:27:00,697 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7230769230769231 [2024-10-11 19:27:00,698 INFO L175 Difference]: Start difference. First operand has 67 places, 70 transitions, 166 flow. Second operand 5 states and 282 transitions. [2024-10-11 19:27:00,698 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 120 transitions, 457 flow [2024-10-11 19:27:00,699 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 120 transitions, 453 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-11 19:27:00,702 INFO L231 Difference]: Finished difference. Result has 74 places, 87 transitions, 320 flow [2024-10-11 19:27:00,702 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=78, PETRI_DIFFERENCE_MINUEND_FLOW=164, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=320, PETRI_PLACES=74, PETRI_TRANSITIONS=87} [2024-10-11 19:27:00,703 INFO L277 CegarLoopForPetriNet]: 68 programPoint places, 6 predicate places. [2024-10-11 19:27:00,703 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 87 transitions, 320 flow [2024-10-11 19:27:00,703 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.75) internal successors, (167), 4 states have internal predecessors, (167), 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) [2024-10-11 19:27:00,703 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:27:00,703 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:27:00,703 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 19:27:00,703 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err0ASSERT_VIOLATIONMEMORY_LEAK === [thr2Err0ASSERT_VIOLATIONMEMORY_LEAK, thr1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-10-11 19:27:00,704 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:27:00,704 INFO L85 PathProgramCache]: Analyzing trace with hash -1021294130, now seen corresponding path program 2 times [2024-10-11 19:27:00,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:27:00,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068061474] [2024-10-11 19:27:00,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:27:00,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:27:00,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:27:00,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:27:00,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:27:00,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068061474] [2024-10-11 19:27:00,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068061474] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:27:00,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:27:00,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 19:27:00,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184446379] [2024-10-11 19:27:00,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:27:00,766 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 19:27:00,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:27:00,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 19:27:00,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 19:27:00,787 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 78 [2024-10-11 19:27:00,788 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 87 transitions, 320 flow. Second operand has 4 states, 4 states have (on average 41.75) internal successors, (167), 4 states have internal predecessors, (167), 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) [2024-10-11 19:27:00,788 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:27:00,788 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 78 [2024-10-11 19:27:00,788 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:27:00,999 INFO L124 PetriNetUnfolderBase]: 923/1891 cut-off events. [2024-10-11 19:27:00,999 INFO L125 PetriNetUnfolderBase]: For 878/911 co-relation queries the response was YES. [2024-10-11 19:27:01,003 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4227 conditions, 1891 events. 923/1891 cut-off events. For 878/911 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 11121 event pairs, 337 based on Foata normal form. 64/1879 useless extension candidates. Maximal degree in co-relation 1788. Up to 788 conditions per place. [2024-10-11 19:27:01,010 INFO L140 encePairwiseOnDemand]: 62/78 looper letters, 67 selfloop transitions, 19 changer transitions 0/131 dead transitions. [2024-10-11 19:27:01,010 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 131 transitions, 607 flow [2024-10-11 19:27:01,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 19:27:01,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-11 19:27:01,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 278 transitions. [2024-10-11 19:27:01,012 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7128205128205128 [2024-10-11 19:27:01,012 INFO L175 Difference]: Start difference. First operand has 74 places, 87 transitions, 320 flow. Second operand 5 states and 278 transitions. [2024-10-11 19:27:01,012 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 131 transitions, 607 flow [2024-10-11 19:27:01,016 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 131 transitions, 601 flow, removed 3 selfloop flow, removed 0 redundant places. [2024-10-11 19:27:01,017 INFO L231 Difference]: Finished difference. Result has 76 places, 98 transitions, 454 flow [2024-10-11 19:27:01,018 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=78, PETRI_DIFFERENCE_MINUEND_FLOW=298, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=454, PETRI_PLACES=76, PETRI_TRANSITIONS=98} [2024-10-11 19:27:01,018 INFO L277 CegarLoopForPetriNet]: 68 programPoint places, 8 predicate places. [2024-10-11 19:27:01,019 INFO L471 AbstractCegarLoop]: Abstraction has has 76 places, 98 transitions, 454 flow [2024-10-11 19:27:01,019 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.75) internal successors, (167), 4 states have internal predecessors, (167), 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) [2024-10-11 19:27:01,019 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:27:01,019 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:27:01,019 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 19:27:01,020 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [thr2Err0ASSERT_VIOLATIONMEMORY_LEAK, thr1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-10-11 19:27:01,020 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:27:01,021 INFO L85 PathProgramCache]: Analyzing trace with hash 1714082242, now seen corresponding path program 1 times [2024-10-11 19:27:01,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:27:01,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979924921] [2024-10-11 19:27:01,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:27:01,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:27:01,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:27:01,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:27:01,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:27:01,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979924921] [2024-10-11 19:27:01,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979924921] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:27:01,097 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:27:01,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 19:27:01,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602708362] [2024-10-11 19:27:01,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:27:01,097 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 19:27:01,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:27:01,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 19:27:01,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 19:27:01,118 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 78 [2024-10-11 19:27:01,118 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 98 transitions, 454 flow. Second operand has 4 states, 4 states have (on average 41.0) internal successors, (164), 4 states have internal predecessors, (164), 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) [2024-10-11 19:27:01,118 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:27:01,118 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 78 [2024-10-11 19:27:01,119 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:27:01,367 INFO L124 PetriNetUnfolderBase]: 1334/2725 cut-off events. [2024-10-11 19:27:01,367 INFO L125 PetriNetUnfolderBase]: For 2895/2951 co-relation queries the response was YES. [2024-10-11 19:27:01,374 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7492 conditions, 2725 events. 1334/2725 cut-off events. For 2895/2951 co-relation queries the response was YES. Maximal size of possible extension queue 132. Compared 17553 event pairs, 530 based on Foata normal form. 110/2777 useless extension candidates. Maximal degree in co-relation 4911. Up to 1365 conditions per place. [2024-10-11 19:27:01,403 INFO L140 encePairwiseOnDemand]: 61/78 looper letters, 91 selfloop transitions, 23 changer transitions 0/156 dead transitions. [2024-10-11 19:27:01,403 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 156 transitions, 927 flow [2024-10-11 19:27:01,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 19:27:01,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-11 19:27:01,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 275 transitions. [2024-10-11 19:27:01,405 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7051282051282052 [2024-10-11 19:27:01,405 INFO L175 Difference]: Start difference. First operand has 76 places, 98 transitions, 454 flow. Second operand 5 states and 275 transitions. [2024-10-11 19:27:01,405 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 156 transitions, 927 flow [2024-10-11 19:27:01,411 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 156 transitions, 920 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 19:27:01,413 INFO L231 Difference]: Finished difference. Result has 82 places, 118 transitions, 697 flow [2024-10-11 19:27:01,413 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=78, PETRI_DIFFERENCE_MINUEND_FLOW=449, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=697, PETRI_PLACES=82, PETRI_TRANSITIONS=118} [2024-10-11 19:27:01,414 INFO L277 CegarLoopForPetriNet]: 68 programPoint places, 14 predicate places. [2024-10-11 19:27:01,414 INFO L471 AbstractCegarLoop]: Abstraction has has 82 places, 118 transitions, 697 flow [2024-10-11 19:27:01,414 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.0) internal successors, (164), 4 states have internal predecessors, (164), 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) [2024-10-11 19:27:01,414 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:27:01,414 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:27:01,414 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-11 19:27:01,415 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [thr2Err0ASSERT_VIOLATIONMEMORY_LEAK, thr1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-10-11 19:27:01,415 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:27:01,415 INFO L85 PathProgramCache]: Analyzing trace with hash 1241702902, now seen corresponding path program 2 times [2024-10-11 19:27:01,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:27:01,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615404568] [2024-10-11 19:27:01,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:27:01,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:27:01,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:27:01,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:27:01,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:27:01,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615404568] [2024-10-11 19:27:01,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [615404568] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:27:01,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:27:01,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 19:27:01,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869445165] [2024-10-11 19:27:01,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:27:01,465 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 19:27:01,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:27:01,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 19:27:01,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 19:27:01,499 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 78 [2024-10-11 19:27:01,499 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 118 transitions, 697 flow. Second operand has 4 states, 4 states have (on average 43.75) internal successors, (175), 4 states have internal predecessors, (175), 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) [2024-10-11 19:27:01,499 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:27:01,500 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 78 [2024-10-11 19:27:01,500 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:27:01,734 INFO L124 PetriNetUnfolderBase]: 1382/2959 cut-off events. [2024-10-11 19:27:01,735 INFO L125 PetriNetUnfolderBase]: For 5459/5574 co-relation queries the response was YES. [2024-10-11 19:27:01,743 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9140 conditions, 2959 events. 1382/2959 cut-off events. For 5459/5574 co-relation queries the response was YES. Maximal size of possible extension queue 135. Compared 20023 event pairs, 331 based on Foata normal form. 82/2988 useless extension candidates. Maximal degree in co-relation 4156. Up to 839 conditions per place. [2024-10-11 19:27:01,783 INFO L140 encePairwiseOnDemand]: 60/78 looper letters, 89 selfloop transitions, 45 changer transitions 0/179 dead transitions. [2024-10-11 19:27:01,783 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 179 transitions, 1330 flow [2024-10-11 19:27:01,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 19:27:01,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-11 19:27:01,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 280 transitions. [2024-10-11 19:27:01,785 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.717948717948718 [2024-10-11 19:27:01,785 INFO L175 Difference]: Start difference. First operand has 82 places, 118 transitions, 697 flow. Second operand 5 states and 280 transitions. [2024-10-11 19:27:01,785 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 179 transitions, 1330 flow [2024-10-11 19:27:01,792 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 179 transitions, 1314 flow, removed 8 selfloop flow, removed 0 redundant places. [2024-10-11 19:27:01,794 INFO L231 Difference]: Finished difference. Result has 90 places, 145 transitions, 1119 flow [2024-10-11 19:27:01,794 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=78, PETRI_DIFFERENCE_MINUEND_FLOW=681, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1119, PETRI_PLACES=90, PETRI_TRANSITIONS=145} [2024-10-11 19:27:01,795 INFO L277 CegarLoopForPetriNet]: 68 programPoint places, 22 predicate places. [2024-10-11 19:27:01,795 INFO L471 AbstractCegarLoop]: Abstraction has has 90 places, 145 transitions, 1119 flow [2024-10-11 19:27:01,795 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 43.75) internal successors, (175), 4 states have internal predecessors, (175), 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) [2024-10-11 19:27:01,795 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:27:01,795 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:27:01,795 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-11 19:27:01,796 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [thr2Err0ASSERT_VIOLATIONMEMORY_LEAK, thr1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-10-11 19:27:01,796 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:27:01,796 INFO L85 PathProgramCache]: Analyzing trace with hash -1942681022, now seen corresponding path program 3 times [2024-10-11 19:27:01,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:27:01,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164991995] [2024-10-11 19:27:01,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:27:01,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:27:01,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:27:01,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:27:01,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:27:01,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164991995] [2024-10-11 19:27:01,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164991995] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:27:01,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:27:01,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-11 19:27:01,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39657884] [2024-10-11 19:27:01,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:27:01,846 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 19:27:01,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:27:01,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 19:27:01,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 19:27:01,847 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 78 [2024-10-11 19:27:01,847 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 145 transitions, 1119 flow. Second operand has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 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) [2024-10-11 19:27:01,847 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:27:01,847 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 78 [2024-10-11 19:27:01,847 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:27:01,963 INFO L124 PetriNetUnfolderBase]: 657/1687 cut-off events. [2024-10-11 19:27:01,963 INFO L125 PetriNetUnfolderBase]: For 4218/4284 co-relation queries the response was YES. [2024-10-11 19:27:01,968 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5514 conditions, 1687 events. 657/1687 cut-off events. For 4218/4284 co-relation queries the response was YES. Maximal size of possible extension queue 110. Compared 12312 event pairs, 287 based on Foata normal form. 28/1512 useless extension candidates. Maximal degree in co-relation 2440. Up to 695 conditions per place. [2024-10-11 19:27:01,970 INFO L140 encePairwiseOnDemand]: 76/78 looper letters, 0 selfloop transitions, 0 changer transitions 144/144 dead transitions. [2024-10-11 19:27:01,971 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 144 transitions, 1167 flow [2024-10-11 19:27:01,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 19:27:01,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 19:27:01,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 177 transitions. [2024-10-11 19:27:01,972 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7564102564102564 [2024-10-11 19:27:01,972 INFO L175 Difference]: Start difference. First operand has 90 places, 145 transitions, 1119 flow. Second operand 3 states and 177 transitions. [2024-10-11 19:27:01,973 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 144 transitions, 1167 flow [2024-10-11 19:27:01,980 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 144 transitions, 1167 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-11 19:27:01,981 INFO L231 Difference]: Finished difference. Result has 91 places, 0 transitions, 0 flow [2024-10-11 19:27:01,982 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=78, PETRI_DIFFERENCE_MINUEND_FLOW=1117, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=91, PETRI_TRANSITIONS=0} [2024-10-11 19:27:01,983 INFO L277 CegarLoopForPetriNet]: 68 programPoint places, 23 predicate places. [2024-10-11 19:27:01,983 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 0 transitions, 0 flow [2024-10-11 19:27:01,983 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 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) [2024-10-11 19:27:01,986 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr2Err0ASSERT_VIOLATIONMEMORY_LEAK (6 of 7 remaining) [2024-10-11 19:27:01,986 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONMEMORY_LEAK (5 of 7 remaining) [2024-10-11 19:27:01,988 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (4 of 7 remaining) [2024-10-11 19:27:01,988 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 7 remaining) [2024-10-11 19:27:01,989 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 7 remaining) [2024-10-11 19:27:01,989 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr2Err0ASSERT_VIOLATIONMEMORY_LEAK (1 of 7 remaining) [2024-10-11 19:27:01,989 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 7 remaining) [2024-10-11 19:27:01,989 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-11 19:27:01,989 INFO L407 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1] [2024-10-11 19:27:01,997 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-11 19:27:01,997 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-11 19:27:02,001 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 07:27:02 BasicIcfg [2024-10-11 19:27:02,001 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-11 19:27:02,001 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-11 19:27:02,001 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-11 19:27:02,002 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-11 19:27:02,002 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 07:26:59" (3/4) ... [2024-10-11 19:27:02,003 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-11 19:27:02,006 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thr2 [2024-10-11 19:27:02,006 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thr1 [2024-10-11 19:27:02,008 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 30 nodes and edges [2024-10-11 19:27:02,008 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2024-10-11 19:27:02,008 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-10-11 19:27:02,008 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-10-11 19:27:02,062 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-11 19:27:02,063 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-11 19:27:02,063 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-11 19:27:02,063 INFO L158 Benchmark]: Toolchain (without parser) took 3351.68ms. Allocated memory was 180.4MB in the beginning and 241.2MB in the end (delta: 60.8MB). Free memory was 111.3MB in the beginning and 102.8MB in the end (delta: 8.5MB). Peak memory consumption was 69.7MB. Max. memory is 16.1GB. [2024-10-11 19:27:02,064 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 109.1MB. Free memory is still 71.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 19:27:02,064 INFO L158 Benchmark]: CACSL2BoogieTranslator took 381.51ms. Allocated memory is still 180.4MB. Free memory was 110.9MB in the beginning and 144.0MB in the end (delta: -33.1MB). Peak memory consumption was 18.0MB. Max. memory is 16.1GB. [2024-10-11 19:27:02,064 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.15ms. Allocated memory is still 180.4MB. Free memory was 144.0MB in the beginning and 141.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-11 19:27:02,064 INFO L158 Benchmark]: Boogie Preprocessor took 33.83ms. Allocated memory is still 180.4MB. Free memory was 141.2MB in the beginning and 139.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-11 19:27:02,065 INFO L158 Benchmark]: RCFGBuilder took 395.14ms. Allocated memory is still 180.4MB. Free memory was 139.1MB in the beginning and 120.2MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-10-11 19:27:02,066 INFO L158 Benchmark]: TraceAbstraction took 2436.46ms. Allocated memory was 180.4MB in the beginning and 241.2MB in the end (delta: 60.8MB). Free memory was 119.5MB in the beginning and 107.0MB in the end (delta: 12.6MB). Peak memory consumption was 72.7MB. Max. memory is 16.1GB. [2024-10-11 19:27:02,066 INFO L158 Benchmark]: Witness Printer took 61.78ms. Allocated memory is still 241.2MB. Free memory was 107.0MB in the beginning and 102.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-11 19:27:02,068 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 109.1MB. Free memory is still 71.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 381.51ms. Allocated memory is still 180.4MB. Free memory was 110.9MB in the beginning and 144.0MB in the end (delta: -33.1MB). Peak memory consumption was 18.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.15ms. Allocated memory is still 180.4MB. Free memory was 144.0MB in the beginning and 141.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.83ms. Allocated memory is still 180.4MB. Free memory was 141.2MB in the beginning and 139.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 395.14ms. Allocated memory is still 180.4MB. Free memory was 139.1MB in the beginning and 120.2MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 2436.46ms. Allocated memory was 180.4MB in the beginning and 241.2MB in the end (delta: 60.8MB). Free memory was 119.5MB in the beginning and 107.0MB in the end (delta: 12.6MB). Peak memory consumption was 72.7MB. Max. memory is 16.1GB. * Witness Printer took 61.78ms. Allocated memory is still 241.2MB. Free memory was 107.0MB in the beginning and 102.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 12]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 12]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 816]: 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, 121 locations, 7 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: 2.3s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 297 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 221 mSDsluCounter, 112 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 44 mSDsCounter, 71 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 701 IncrementalHoareTripleChecker+Invalid, 772 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 71 mSolverCounterUnsat, 68 mSDtfsCounter, 701 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1119occurred in iteration=6, InterpolantAutomatonStates: 29, 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: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 203 NumberOfCodeBlocks, 203 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 196 ConstructedInterpolants, 0 QuantifiedInterpolants, 330 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 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 3 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-10-11 19:27:02,090 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE