./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/weaver/parallel-misc-3.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 8be7027f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/weaver/parallel-misc-3.wvr.c -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 b2ed7b18db6948b1f53058568aeeb46b9da6de135bdadf46ddc91e86240dfa66 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-12 16:25:39,298 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-12 16:25:39,372 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-12 16:25:39,376 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-12 16:25:39,377 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-12 16:25:39,396 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-12 16:25:39,396 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-12 16:25:39,397 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-12 16:25:39,397 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-12 16:25:39,399 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-12 16:25:39,400 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-12 16:25:39,400 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-12 16:25:39,401 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-12 16:25:39,401 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-12 16:25:39,403 INFO L153 SettingsManager]: * Use SBE=true [2024-11-12 16:25:39,403 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-12 16:25:39,404 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-12 16:25:39,404 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-12 16:25:39,404 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-12 16:25:39,404 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-12 16:25:39,405 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-12 16:25:39,405 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-12 16:25:39,422 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-12 16:25:39,423 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-12 16:25:39,423 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-12 16:25:39,423 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-12 16:25:39,423 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-12 16:25:39,423 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-12 16:25:39,423 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-12 16:25:39,424 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-12 16:25:39,424 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-12 16:25:39,424 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-12 16:25:39,424 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-12 16:25:39,424 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 16:25:39,425 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-12 16:25:39,425 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-12 16:25:39,425 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-12 16:25:39,425 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-12 16:25:39,425 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-12 16:25:39,425 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-12 16:25:39,426 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-12 16:25:39,428 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-12 16:25:39,429 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b2ed7b18db6948b1f53058568aeeb46b9da6de135bdadf46ddc91e86240dfa66 [2024-11-12 16:25:39,717 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-12 16:25:39,748 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-12 16:25:39,751 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-12 16:25:39,752 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-12 16:25:39,753 INFO L274 PluginConnector]: CDTParser initialized [2024-11-12 16:25:39,754 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/parallel-misc-3.wvr.c [2024-11-12 16:25:41,234 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-12 16:25:41,450 INFO L384 CDTParser]: Found 1 translation units. [2024-11-12 16:25:41,451 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-misc-3.wvr.c [2024-11-12 16:25:41,458 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/66c59db0d/2cc9d6886d394b169db5b0df0854f3af/FLAG082337f64 [2024-11-12 16:25:41,477 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/66c59db0d/2cc9d6886d394b169db5b0df0854f3af [2024-11-12 16:25:41,480 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-12 16:25:41,482 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-12 16:25:41,483 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-12 16:25:41,483 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-12 16:25:41,490 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-12 16:25:41,491 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 04:25:41" (1/1) ... [2024-11-12 16:25:41,492 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@dd72cb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:25:41, skipping insertion in model container [2024-11-12 16:25:41,492 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 04:25:41" (1/1) ... [2024-11-12 16:25:41,529 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-12 16:25:41,752 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 16:25:41,764 INFO L200 MainTranslator]: Completed pre-run [2024-11-12 16:25:41,788 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 16:25:41,808 INFO L204 MainTranslator]: Completed translation [2024-11-12 16:25:41,808 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:25:41 WrapperNode [2024-11-12 16:25:41,809 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-12 16:25:41,810 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-12 16:25:41,810 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-12 16:25:41,811 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-12 16:25:41,818 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:25:41" (1/1) ... [2024-11-12 16:25:41,827 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:25:41" (1/1) ... [2024-11-12 16:25:41,855 INFO L138 Inliner]: procedures = 18, calls = 10, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 42 [2024-11-12 16:25:41,856 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-12 16:25:41,856 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-12 16:25:41,857 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-12 16:25:41,857 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-12 16:25:41,876 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:25:41" (1/1) ... [2024-11-12 16:25:41,876 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:25:41" (1/1) ... [2024-11-12 16:25:41,878 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:25:41" (1/1) ... [2024-11-12 16:25:41,914 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-12 16:25:41,915 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:25:41" (1/1) ... [2024-11-12 16:25:41,915 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:25:41" (1/1) ... [2024-11-12 16:25:41,925 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:25:41" (1/1) ... [2024-11-12 16:25:41,930 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:25:41" (1/1) ... [2024-11-12 16:25:41,932 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:25:41" (1/1) ... [2024-11-12 16:25:41,933 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:25:41" (1/1) ... [2024-11-12 16:25:41,936 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-12 16:25:41,938 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-12 16:25:41,938 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-12 16:25:41,938 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-12 16:25:41,939 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:25:41" (1/1) ... [2024-11-12 16:25:41,944 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 16:25:41,958 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 16:25:41,977 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-12 16:25:41,981 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-12 16:25:42,040 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-12 16:25:42,040 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-12 16:25:42,040 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-12 16:25:42,040 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-12 16:25:42,042 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-12 16:25:42,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-12 16:25:42,042 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-12 16:25:42,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-12 16:25:42,043 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-12 16:25:42,158 INFO L238 CfgBuilder]: Building ICFG [2024-11-12 16:25:42,160 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-12 16:25:42,318 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-12 16:25:42,318 INFO L287 CfgBuilder]: Performing block encoding [2024-11-12 16:25:42,435 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-12 16:25:42,435 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-12 16:25:42,436 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 04:25:42 BoogieIcfgContainer [2024-11-12 16:25:42,436 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-12 16:25:42,438 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-12 16:25:42,439 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-12 16:25:42,442 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-12 16:25:42,442 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 04:25:41" (1/3) ... [2024-11-12 16:25:42,443 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59ab612c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 04:25:42, skipping insertion in model container [2024-11-12 16:25:42,443 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:25:41" (2/3) ... [2024-11-12 16:25:42,444 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59ab612c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 04:25:42, skipping insertion in model container [2024-11-12 16:25:42,444 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 04:25:42" (3/3) ... [2024-11-12 16:25:42,445 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-misc-3.wvr.c [2024-11-12 16:25:42,466 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-12 16:25:42,467 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-12 16:25:42,467 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-12 16:25:42,529 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-12 16:25:42,567 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 35 places, 32 transitions, 78 flow [2024-11-12 16:25:42,596 INFO L124 PetriNetUnfolderBase]: 4/30 cut-off events. [2024-11-12 16:25:42,597 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-12 16:25:42,600 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39 conditions, 30 events. 4/30 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 64 event pairs, 0 based on Foata normal form. 0/24 useless extension candidates. Maximal degree in co-relation 23. Up to 2 conditions per place. [2024-11-12 16:25:42,600 INFO L82 GeneralOperation]: Start removeDead. Operand has 35 places, 32 transitions, 78 flow [2024-11-12 16:25:42,604 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 32 places, 29 transitions, 70 flow [2024-11-12 16:25:42,620 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 16:25:42,630 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;@1e2acbeb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 16:25:42,631 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-12 16:25:42,645 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-12 16:25:42,646 INFO L124 PetriNetUnfolderBase]: 4/26 cut-off events. [2024-11-12 16:25:42,646 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-12 16:25:42,646 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:25:42,647 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 16:25:42,647 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-12 16:25:42,654 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:25:42,654 INFO L85 PathProgramCache]: Analyzing trace with hash -73277144, now seen corresponding path program 1 times [2024-11-12 16:25:42,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:25:42,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743445823] [2024-11-12 16:25:42,664 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:25:42,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:25:42,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:25:42,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 16:25:42,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:25:42,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743445823] [2024-11-12 16:25:42,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743445823] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:25:42,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 16:25:42,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 16:25:42,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619287876] [2024-11-12 16:25:42,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:25:42,940 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 16:25:42,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:25:42,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 16:25:42,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 16:25:42,976 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 32 [2024-11-12 16:25:42,979 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 29 transitions, 70 flow. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:25:42,979 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:25:42,979 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 32 [2024-11-12 16:25:42,980 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 16:25:43,101 INFO L124 PetriNetUnfolderBase]: 146/284 cut-off events. [2024-11-12 16:25:43,102 INFO L125 PetriNetUnfolderBase]: For 18/18 co-relation queries the response was YES. [2024-11-12 16:25:43,104 INFO L83 FinitePrefix]: Finished finitePrefix Result has 518 conditions, 284 events. 146/284 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1128 event pairs, 12 based on Foata normal form. 2/251 useless extension candidates. Maximal degree in co-relation 458. Up to 185 conditions per place. [2024-11-12 16:25:43,110 INFO L140 encePairwiseOnDemand]: 25/32 looper letters, 21 selfloop transitions, 5 changer transitions 1/38 dead transitions. [2024-11-12 16:25:43,111 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 38 transitions, 151 flow [2024-11-12 16:25:43,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 16:25:43,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 16:25:43,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 71 transitions. [2024-11-12 16:25:43,122 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7395833333333334 [2024-11-12 16:25:43,123 INFO L175 Difference]: Start difference. First operand has 32 places, 29 transitions, 70 flow. Second operand 3 states and 71 transitions. [2024-11-12 16:25:43,124 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 38 transitions, 151 flow [2024-11-12 16:25:43,127 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 38 transitions, 137 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-12 16:25:43,130 INFO L231 Difference]: Finished difference. Result has 29 places, 31 transitions, 91 flow [2024-11-12 16:25:43,133 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=91, PETRI_PLACES=29, PETRI_TRANSITIONS=31} [2024-11-12 16:25:43,140 INFO L279 CegarLoopForPetriNet]: 32 programPoint places, -3 predicate places. [2024-11-12 16:25:43,141 INFO L471 AbstractCegarLoop]: Abstraction has has 29 places, 31 transitions, 91 flow [2024-11-12 16:25:43,141 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:25:43,141 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:25:43,141 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 16:25:43,142 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-12 16:25:43,142 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-12 16:25:43,143 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:25:43,143 INFO L85 PathProgramCache]: Analyzing trace with hash -364959184, now seen corresponding path program 1 times [2024-11-12 16:25:43,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:25:43,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712082061] [2024-11-12 16:25:43,144 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:25:43,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:25:43,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:25:43,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 16:25:43,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:25:43,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712082061] [2024-11-12 16:25:43,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1712082061] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:25:43,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 16:25:43,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 16:25:43,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235365335] [2024-11-12 16:25:43,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:25:43,316 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 16:25:43,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:25:43,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 16:25:43,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 16:25:43,321 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 32 [2024-11-12 16:25:43,323 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 31 transitions, 91 flow. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:25:43,323 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:25:43,324 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 32 [2024-11-12 16:25:43,324 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 16:25:43,450 INFO L124 PetriNetUnfolderBase]: 129/272 cut-off events. [2024-11-12 16:25:43,454 INFO L125 PetriNetUnfolderBase]: For 48/60 co-relation queries the response was YES. [2024-11-12 16:25:43,456 INFO L83 FinitePrefix]: Finished finitePrefix Result has 543 conditions, 272 events. 129/272 cut-off events. For 48/60 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1198 event pairs, 22 based on Foata normal form. 11/244 useless extension candidates. Maximal degree in co-relation 341. Up to 108 conditions per place. [2024-11-12 16:25:43,459 INFO L140 encePairwiseOnDemand]: 29/32 looper letters, 22 selfloop transitions, 2 changer transitions 0/39 dead transitions. [2024-11-12 16:25:43,460 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 39 transitions, 160 flow [2024-11-12 16:25:43,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 16:25:43,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 16:25:43,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 71 transitions. [2024-11-12 16:25:43,463 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7395833333333334 [2024-11-12 16:25:43,463 INFO L175 Difference]: Start difference. First operand has 29 places, 31 transitions, 91 flow. Second operand 3 states and 71 transitions. [2024-11-12 16:25:43,463 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 39 transitions, 160 flow [2024-11-12 16:25:43,465 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 39 transitions, 153 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-11-12 16:25:43,468 INFO L231 Difference]: Finished difference. Result has 31 places, 32 transitions, 96 flow [2024-11-12 16:25:43,468 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=96, PETRI_PLACES=31, PETRI_TRANSITIONS=32} [2024-11-12 16:25:43,469 INFO L279 CegarLoopForPetriNet]: 32 programPoint places, -1 predicate places. [2024-11-12 16:25:43,470 INFO L471 AbstractCegarLoop]: Abstraction has has 31 places, 32 transitions, 96 flow [2024-11-12 16:25:43,470 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:25:43,471 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:25:43,471 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 16:25:43,471 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-12 16:25:43,471 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-12 16:25:43,473 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:25:43,473 INFO L85 PathProgramCache]: Analyzing trace with hash -674629076, now seen corresponding path program 1 times [2024-11-12 16:25:43,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:25:43,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562772281] [2024-11-12 16:25:43,474 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:25:43,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:25:43,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:25:43,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 16:25:43,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:25:43,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562772281] [2024-11-12 16:25:43,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [562772281] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:25:43,629 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 16:25:43,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 16:25:43,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230529846] [2024-11-12 16:25:43,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:25:43,642 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 16:25:43,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:25:43,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 16:25:43,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 16:25:43,647 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 32 [2024-11-12 16:25:43,648 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 32 transitions, 96 flow. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:25:43,648 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:25:43,648 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 32 [2024-11-12 16:25:43,648 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 16:25:43,743 INFO L124 PetriNetUnfolderBase]: 128/302 cut-off events. [2024-11-12 16:25:43,743 INFO L125 PetriNetUnfolderBase]: For 77/83 co-relation queries the response was YES. [2024-11-12 16:25:43,746 INFO L83 FinitePrefix]: Finished finitePrefix Result has 617 conditions, 302 events. 128/302 cut-off events. For 77/83 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1482 event pairs, 22 based on Foata normal form. 9/262 useless extension candidates. Maximal degree in co-relation 330. Up to 107 conditions per place. [2024-11-12 16:25:43,750 INFO L140 encePairwiseOnDemand]: 29/32 looper letters, 23 selfloop transitions, 2 changer transitions 0/40 dead transitions. [2024-11-12 16:25:43,750 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 40 transitions, 174 flow [2024-11-12 16:25:43,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 16:25:43,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 16:25:43,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 70 transitions. [2024-11-12 16:25:43,753 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7291666666666666 [2024-11-12 16:25:43,754 INFO L175 Difference]: Start difference. First operand has 31 places, 32 transitions, 96 flow. Second operand 3 states and 70 transitions. [2024-11-12 16:25:43,754 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 40 transitions, 174 flow [2024-11-12 16:25:43,755 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 40 transitions, 171 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-12 16:25:43,756 INFO L231 Difference]: Finished difference. Result has 33 places, 33 transitions, 106 flow [2024-11-12 16:25:43,757 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=106, PETRI_PLACES=33, PETRI_TRANSITIONS=33} [2024-11-12 16:25:43,757 INFO L279 CegarLoopForPetriNet]: 32 programPoint places, 1 predicate places. [2024-11-12 16:25:43,758 INFO L471 AbstractCegarLoop]: Abstraction has has 33 places, 33 transitions, 106 flow [2024-11-12 16:25:43,758 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:25:43,758 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:25:43,759 INFO L206 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] [2024-11-12 16:25:43,759 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-12 16:25:43,760 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-12 16:25:43,761 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:25:43,761 INFO L85 PathProgramCache]: Analyzing trace with hash 1346235286, now seen corresponding path program 1 times [2024-11-12 16:25:43,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:25:43,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654855593] [2024-11-12 16:25:43,762 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:25:43,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:25:43,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:25:44,068 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-12 16:25:44,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:25:44,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654855593] [2024-11-12 16:25:44,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1654855593] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:25:44,070 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 16:25:44,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 16:25:44,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589642574] [2024-11-12 16:25:44,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:25:44,071 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 16:25:44,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:25:44,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 16:25:44,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-12 16:25:44,088 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 32 [2024-11-12 16:25:44,089 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 33 transitions, 106 flow. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:25:44,089 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:25:44,089 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 32 [2024-11-12 16:25:44,090 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 16:25:44,206 INFO L124 PetriNetUnfolderBase]: 218/428 cut-off events. [2024-11-12 16:25:44,207 INFO L125 PetriNetUnfolderBase]: For 135/163 co-relation queries the response was YES. [2024-11-12 16:25:44,208 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1020 conditions, 428 events. 218/428 cut-off events. For 135/163 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1788 event pairs, 50 based on Foata normal form. 16/393 useless extension candidates. Maximal degree in co-relation 379. Up to 139 conditions per place. [2024-11-12 16:25:44,212 INFO L140 encePairwiseOnDemand]: 27/32 looper letters, 33 selfloop transitions, 5 changer transitions 0/51 dead transitions. [2024-11-12 16:25:44,212 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 51 transitions, 240 flow [2024-11-12 16:25:44,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-12 16:25:44,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-12 16:25:44,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 91 transitions. [2024-11-12 16:25:44,213 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7109375 [2024-11-12 16:25:44,214 INFO L175 Difference]: Start difference. First operand has 33 places, 33 transitions, 106 flow. Second operand 4 states and 91 transitions. [2024-11-12 16:25:44,214 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 51 transitions, 240 flow [2024-11-12 16:25:44,215 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 51 transitions, 236 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-12 16:25:44,215 INFO L231 Difference]: Finished difference. Result has 37 places, 35 transitions, 136 flow [2024-11-12 16:25:44,216 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=136, PETRI_PLACES=37, PETRI_TRANSITIONS=35} [2024-11-12 16:25:44,217 INFO L279 CegarLoopForPetriNet]: 32 programPoint places, 5 predicate places. [2024-11-12 16:25:44,217 INFO L471 AbstractCegarLoop]: Abstraction has has 37 places, 35 transitions, 136 flow [2024-11-12 16:25:44,217 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:25:44,217 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:25:44,217 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 16:25:44,218 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-12 16:25:44,218 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-12 16:25:44,219 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:25:44,219 INFO L85 PathProgramCache]: Analyzing trace with hash -939977965, now seen corresponding path program 1 times [2024-11-12 16:25:44,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:25:44,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878087432] [2024-11-12 16:25:44,219 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:25:44,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:25:44,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:25:44,415 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-12 16:25:44,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:25:44,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878087432] [2024-11-12 16:25:44,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1878087432] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:25:44,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 16:25:44,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 16:25:44,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005577175] [2024-11-12 16:25:44,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:25:44,419 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 16:25:44,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:25:44,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 16:25:44,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-12 16:25:44,428 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 32 [2024-11-12 16:25:44,428 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 35 transitions, 136 flow. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:25:44,429 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:25:44,429 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 32 [2024-11-12 16:25:44,430 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 16:25:44,621 INFO L124 PetriNetUnfolderBase]: 392/744 cut-off events. [2024-11-12 16:25:44,621 INFO L125 PetriNetUnfolderBase]: For 772/806 co-relation queries the response was YES. [2024-11-12 16:25:44,624 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1982 conditions, 744 events. 392/744 cut-off events. For 772/806 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 4002 event pairs, 93 based on Foata normal form. 36/691 useless extension candidates. Maximal degree in co-relation 1034. Up to 228 conditions per place. [2024-11-12 16:25:44,628 INFO L140 encePairwiseOnDemand]: 27/32 looper letters, 39 selfloop transitions, 5 changer transitions 0/57 dead transitions. [2024-11-12 16:25:44,628 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 57 transitions, 330 flow [2024-11-12 16:25:44,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-12 16:25:44,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-12 16:25:44,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 91 transitions. [2024-11-12 16:25:44,630 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7109375 [2024-11-12 16:25:44,630 INFO L175 Difference]: Start difference. First operand has 37 places, 35 transitions, 136 flow. Second operand 4 states and 91 transitions. [2024-11-12 16:25:44,630 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 57 transitions, 330 flow [2024-11-12 16:25:44,632 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 57 transitions, 324 flow, removed 3 selfloop flow, removed 0 redundant places. [2024-11-12 16:25:44,633 INFO L231 Difference]: Finished difference. Result has 42 places, 37 transitions, 166 flow [2024-11-12 16:25:44,633 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=166, PETRI_PLACES=42, PETRI_TRANSITIONS=37} [2024-11-12 16:25:44,637 INFO L279 CegarLoopForPetriNet]: 32 programPoint places, 10 predicate places. [2024-11-12 16:25:44,637 INFO L471 AbstractCegarLoop]: Abstraction has has 42 places, 37 transitions, 166 flow [2024-11-12 16:25:44,638 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:25:44,638 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:25:44,638 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 16:25:44,638 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-12 16:25:44,638 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-12 16:25:44,639 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:25:44,639 INFO L85 PathProgramCache]: Analyzing trace with hash -1840485683, now seen corresponding path program 1 times [2024-11-12 16:25:44,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:25:44,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063937558] [2024-11-12 16:25:44,639 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:25:44,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:25:44,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:25:44,814 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-12 16:25:44,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:25:44,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063937558] [2024-11-12 16:25:44,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063937558] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 16:25:44,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1061285615] [2024-11-12 16:25:44,815 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:25:44,815 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 16:25:44,815 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 16:25:44,818 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 16:25:44,820 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-12 16:25:44,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:25:44,892 INFO L256 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-12 16:25:44,899 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 16:25:44,981 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-12 16:25:44,981 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 16:25:45,060 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-12 16:25:45,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1061285615] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 16:25:45,060 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 16:25:45,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 4 [2024-11-12 16:25:45,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642759505] [2024-11-12 16:25:45,061 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 16:25:45,061 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 16:25:45,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:25:45,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 16:25:45,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-12 16:25:45,065 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 32 [2024-11-12 16:25:45,065 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 37 transitions, 166 flow. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:25:45,065 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:25:45,065 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 32 [2024-11-12 16:25:45,065 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 16:25:45,405 INFO L124 PetriNetUnfolderBase]: 956/1991 cut-off events. [2024-11-12 16:25:45,405 INFO L125 PetriNetUnfolderBase]: For 2306/2413 co-relation queries the response was YES. [2024-11-12 16:25:45,413 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5758 conditions, 1991 events. 956/1991 cut-off events. For 2306/2413 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 11863 event pairs, 145 based on Foata normal form. 40/1993 useless extension candidates. Maximal degree in co-relation 1528. Up to 658 conditions per place. [2024-11-12 16:25:45,425 INFO L140 encePairwiseOnDemand]: 26/32 looper letters, 65 selfloop transitions, 15 changer transitions 1/94 dead transitions. [2024-11-12 16:25:45,425 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 94 transitions, 607 flow [2024-11-12 16:25:45,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-12 16:25:45,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-12 16:25:45,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 128 transitions. [2024-11-12 16:25:45,426 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8 [2024-11-12 16:25:45,426 INFO L175 Difference]: Start difference. First operand has 42 places, 37 transitions, 166 flow. Second operand 5 states and 128 transitions. [2024-11-12 16:25:45,427 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 94 transitions, 607 flow [2024-11-12 16:25:45,432 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 94 transitions, 599 flow, removed 4 selfloop flow, removed 0 redundant places. [2024-11-12 16:25:45,434 INFO L231 Difference]: Finished difference. Result has 47 places, 49 transitions, 261 flow [2024-11-12 16:25:45,435 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=164, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=261, PETRI_PLACES=47, PETRI_TRANSITIONS=49} [2024-11-12 16:25:45,436 INFO L279 CegarLoopForPetriNet]: 32 programPoint places, 15 predicate places. [2024-11-12 16:25:45,437 INFO L471 AbstractCegarLoop]: Abstraction has has 47 places, 49 transitions, 261 flow [2024-11-12 16:25:45,437 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:25:45,437 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:25:45,438 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 16:25:45,456 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-12 16:25:45,638 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-12 16:25:45,639 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-12 16:25:45,639 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:25:45,639 INFO L85 PathProgramCache]: Analyzing trace with hash 899236193, now seen corresponding path program 2 times [2024-11-12 16:25:45,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:25:45,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748764389] [2024-11-12 16:25:45,640 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:25:45,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:25:45,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:25:45,859 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 16:25:45,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:25:45,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748764389] [2024-11-12 16:25:45,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748764389] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 16:25:45,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [267268902] [2024-11-12 16:25:45,860 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-12 16:25:45,860 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 16:25:45,860 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 16:25:45,862 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 16:25:45,863 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-12 16:25:45,928 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-12 16:25:45,928 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-12 16:25:45,929 INFO L256 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-12 16:25:45,931 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 16:25:45,980 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 16:25:45,981 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 16:25:46,035 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 16:25:46,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [267268902] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 16:25:46,035 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 16:25:46,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 5 [2024-11-12 16:25:46,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374449350] [2024-11-12 16:25:46,035 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 16:25:46,036 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 16:25:46,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:25:46,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 16:25:46,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-12 16:25:46,041 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 32 [2024-11-12 16:25:46,042 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 49 transitions, 261 flow. Second operand has 6 states, 6 states have (on average 17.0) internal successors, (102), 6 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:25:46,042 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:25:46,042 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 32 [2024-11-12 16:25:46,042 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 16:25:46,621 INFO L124 PetriNetUnfolderBase]: 1767/3692 cut-off events. [2024-11-12 16:25:46,622 INFO L125 PetriNetUnfolderBase]: For 5885/6121 co-relation queries the response was YES. [2024-11-12 16:25:46,632 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11654 conditions, 3692 events. 1767/3692 cut-off events. For 5885/6121 co-relation queries the response was YES. Maximal size of possible extension queue 164. Compared 26093 event pairs, 177 based on Foata normal form. 94/3717 useless extension candidates. Maximal degree in co-relation 3701. Up to 1033 conditions per place. [2024-11-12 16:25:46,653 INFO L140 encePairwiseOnDemand]: 26/32 looper letters, 81 selfloop transitions, 31 changer transitions 1/126 dead transitions. [2024-11-12 16:25:46,653 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 126 transitions, 895 flow [2024-11-12 16:25:46,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 16:25:46,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-12 16:25:46,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 156 transitions. [2024-11-12 16:25:46,654 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8125 [2024-11-12 16:25:46,654 INFO L175 Difference]: Start difference. First operand has 47 places, 49 transitions, 261 flow. Second operand 6 states and 156 transitions. [2024-11-12 16:25:46,654 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 126 transitions, 895 flow [2024-11-12 16:25:46,660 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 126 transitions, 839 flow, removed 28 selfloop flow, removed 0 redundant places. [2024-11-12 16:25:46,662 INFO L231 Difference]: Finished difference. Result has 53 places, 65 transitions, 388 flow [2024-11-12 16:25:46,662 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=237, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=388, PETRI_PLACES=53, PETRI_TRANSITIONS=65} [2024-11-12 16:25:46,663 INFO L279 CegarLoopForPetriNet]: 32 programPoint places, 21 predicate places. [2024-11-12 16:25:46,663 INFO L471 AbstractCegarLoop]: Abstraction has has 53 places, 65 transitions, 388 flow [2024-11-12 16:25:46,664 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.0) internal successors, (102), 6 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:25:46,664 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:25:46,664 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 16:25:46,682 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-12 16:25:46,868 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,SelfDestructingSolverStorable6 [2024-11-12 16:25:46,868 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-12 16:25:46,869 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:25:46,869 INFO L85 PathProgramCache]: Analyzing trace with hash 962951687, now seen corresponding path program 3 times [2024-11-12 16:25:46,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:25:46,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435137634] [2024-11-12 16:25:46,869 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:25:46,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:25:46,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:25:47,220 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-12 16:25:47,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:25:47,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435137634] [2024-11-12 16:25:47,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1435137634] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:25:47,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 16:25:47,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-12 16:25:47,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448770559] [2024-11-12 16:25:47,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:25:47,221 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-12 16:25:47,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:25:47,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-12 16:25:47,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2024-11-12 16:25:47,236 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 32 [2024-11-12 16:25:47,236 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 65 transitions, 388 flow. Second operand has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:25:47,237 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:25:47,237 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 32 [2024-11-12 16:25:47,237 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 16:25:47,939 INFO L124 PetriNetUnfolderBase]: 3183/5782 cut-off events. [2024-11-12 16:25:47,939 INFO L125 PetriNetUnfolderBase]: For 10463/10747 co-relation queries the response was YES. [2024-11-12 16:25:47,963 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18831 conditions, 5782 events. 3183/5782 cut-off events. For 10463/10747 co-relation queries the response was YES. Maximal size of possible extension queue 251. Compared 40722 event pairs, 746 based on Foata normal form. 194/5865 useless extension candidates. Maximal degree in co-relation 7266. Up to 2151 conditions per place. [2024-11-12 16:25:47,998 INFO L140 encePairwiseOnDemand]: 27/32 looper letters, 80 selfloop transitions, 9 changer transitions 0/115 dead transitions. [2024-11-12 16:25:47,999 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 115 transitions, 874 flow [2024-11-12 16:25:47,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-12 16:25:48,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-12 16:25:48,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 99 transitions. [2024-11-12 16:25:48,001 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.61875 [2024-11-12 16:25:48,001 INFO L175 Difference]: Start difference. First operand has 53 places, 65 transitions, 388 flow. Second operand 5 states and 99 transitions. [2024-11-12 16:25:48,001 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 115 transitions, 874 flow [2024-11-12 16:25:48,010 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 115 transitions, 825 flow, removed 17 selfloop flow, removed 1 redundant places. [2024-11-12 16:25:48,013 INFO L231 Difference]: Finished difference. Result has 58 places, 68 transitions, 408 flow [2024-11-12 16:25:48,013 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=361, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=408, PETRI_PLACES=58, PETRI_TRANSITIONS=68} [2024-11-12 16:25:48,014 INFO L279 CegarLoopForPetriNet]: 32 programPoint places, 26 predicate places. [2024-11-12 16:25:48,015 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 68 transitions, 408 flow [2024-11-12 16:25:48,015 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:25:48,016 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:25:48,016 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 16:25:48,016 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-12 16:25:48,016 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-12 16:25:48,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:25:48,017 INFO L85 PathProgramCache]: Analyzing trace with hash 1404958587, now seen corresponding path program 4 times [2024-11-12 16:25:48,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:25:48,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361456726] [2024-11-12 16:25:48,017 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:25:48,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:25:48,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:25:48,233 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-12 16:25:48,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:25:48,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361456726] [2024-11-12 16:25:48,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361456726] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:25:48,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 16:25:48,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 16:25:48,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955029896] [2024-11-12 16:25:48,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:25:48,234 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 16:25:48,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:25:48,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 16:25:48,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 16:25:48,238 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 32 [2024-11-12 16:25:48,239 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 68 transitions, 408 flow. Second operand has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:25:48,239 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:25:48,239 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 32 [2024-11-12 16:25:48,239 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 16:25:48,708 INFO L124 PetriNetUnfolderBase]: 1938/4022 cut-off events. [2024-11-12 16:25:48,708 INFO L125 PetriNetUnfolderBase]: For 10867/11070 co-relation queries the response was YES. [2024-11-12 16:25:48,720 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13454 conditions, 4022 events. 1938/4022 cut-off events. For 10867/11070 co-relation queries the response was YES. Maximal size of possible extension queue 170. Compared 29724 event pairs, 651 based on Foata normal form. 373/4166 useless extension candidates. Maximal degree in co-relation 5768. Up to 1795 conditions per place. [2024-11-12 16:25:48,744 INFO L140 encePairwiseOnDemand]: 28/32 looper letters, 56 selfloop transitions, 5 changer transitions 0/89 dead transitions. [2024-11-12 16:25:48,744 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 89 transitions, 646 flow [2024-11-12 16:25:48,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-12 16:25:48,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-12 16:25:48,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 81 transitions. [2024-11-12 16:25:48,745 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6328125 [2024-11-12 16:25:48,745 INFO L175 Difference]: Start difference. First operand has 58 places, 68 transitions, 408 flow. Second operand 4 states and 81 transitions. [2024-11-12 16:25:48,746 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 89 transitions, 646 flow [2024-11-12 16:25:48,752 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 89 transitions, 637 flow, removed 3 selfloop flow, removed 2 redundant places. [2024-11-12 16:25:48,754 INFO L231 Difference]: Finished difference. Result has 61 places, 66 transitions, 402 flow [2024-11-12 16:25:48,754 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=379, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=402, PETRI_PLACES=61, PETRI_TRANSITIONS=66} [2024-11-12 16:25:48,755 INFO L279 CegarLoopForPetriNet]: 32 programPoint places, 29 predicate places. [2024-11-12 16:25:48,755 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 66 transitions, 402 flow [2024-11-12 16:25:48,756 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:25:48,756 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:25:48,756 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 16:25:48,756 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-12 16:25:48,756 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-12 16:25:48,757 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:25:48,758 INFO L85 PathProgramCache]: Analyzing trace with hash -1332464501, now seen corresponding path program 5 times [2024-11-12 16:25:48,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:25:48,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118508380] [2024-11-12 16:25:48,758 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:25:48,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:25:48,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:25:49,118 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-12 16:25:49,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:25:49,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118508380] [2024-11-12 16:25:49,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118508380] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 16:25:49,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1014906037] [2024-11-12 16:25:49,119 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-12 16:25:49,119 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 16:25:49,119 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 16:25:49,121 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 16:25:49,122 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-12 16:25:49,191 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2024-11-12 16:25:49,192 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-12 16:25:49,193 INFO L256 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-12 16:25:49,197 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 16:25:49,629 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 16:25:49,630 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 16:25:49,923 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-12 16:25:49,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1014906037] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-12 16:25:49,923 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-12 16:25:49,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6, 10] total 19 [2024-11-12 16:25:49,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398718055] [2024-11-12 16:25:49,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:25:49,924 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-12 16:25:49,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:25:49,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-12 16:25:49,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=241, Unknown=0, NotChecked=0, Total=342 [2024-11-12 16:25:49,937 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 32 [2024-11-12 16:25:49,937 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 66 transitions, 402 flow. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 7 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:25:49,937 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:25:49,937 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 32 [2024-11-12 16:25:49,937 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 16:25:51,217 INFO L124 PetriNetUnfolderBase]: 5120/9902 cut-off events. [2024-11-12 16:25:51,218 INFO L125 PetriNetUnfolderBase]: For 30455/30683 co-relation queries the response was YES. [2024-11-12 16:25:51,259 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35358 conditions, 9902 events. 5120/9902 cut-off events. For 30455/30683 co-relation queries the response was YES. Maximal size of possible extension queue 330. Compared 75492 event pairs, 741 based on Foata normal form. 279/10117 useless extension candidates. Maximal degree in co-relation 14478. Up to 3450 conditions per place. [2024-11-12 16:25:51,306 INFO L140 encePairwiseOnDemand]: 24/32 looper letters, 94 selfloop transitions, 40 changer transitions 0/158 dead transitions. [2024-11-12 16:25:51,306 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 158 transitions, 1259 flow [2024-11-12 16:25:51,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-12 16:25:51,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-12 16:25:51,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 155 transitions. [2024-11-12 16:25:51,308 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6919642857142857 [2024-11-12 16:25:51,308 INFO L175 Difference]: Start difference. First operand has 61 places, 66 transitions, 402 flow. Second operand 7 states and 155 transitions. [2024-11-12 16:25:51,308 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 158 transitions, 1259 flow [2024-11-12 16:25:51,334 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 158 transitions, 1193 flow, removed 12 selfloop flow, removed 4 redundant places. [2024-11-12 16:25:51,338 INFO L231 Difference]: Finished difference. Result has 68 places, 108 transitions, 891 flow [2024-11-12 16:25:51,338 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=388, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=891, PETRI_PLACES=68, PETRI_TRANSITIONS=108} [2024-11-12 16:25:51,339 INFO L279 CegarLoopForPetriNet]: 32 programPoint places, 36 predicate places. [2024-11-12 16:25:51,339 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 108 transitions, 891 flow [2024-11-12 16:25:51,339 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 7 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:25:51,339 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:25:51,339 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 16:25:51,357 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-12 16:25:51,540 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 16:25:51,541 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-12 16:25:51,541 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:25:51,541 INFO L85 PathProgramCache]: Analyzing trace with hash -145911965, now seen corresponding path program 6 times [2024-11-12 16:25:51,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:25:51,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929131559] [2024-11-12 16:25:51,542 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:25:51,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:25:51,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:25:51,715 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 16:25:51,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:25:51,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929131559] [2024-11-12 16:25:51,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1929131559] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:25:51,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 16:25:51,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 16:25:51,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202928274] [2024-11-12 16:25:51,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:25:51,717 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 16:25:51,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:25:51,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 16:25:51,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 16:25:51,720 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 32 [2024-11-12 16:25:51,720 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 108 transitions, 891 flow. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:25:51,721 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:25:51,721 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 32 [2024-11-12 16:25:51,721 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 16:25:52,102 INFO L124 PetriNetUnfolderBase]: 1168/2539 cut-off events. [2024-11-12 16:25:52,102 INFO L125 PetriNetUnfolderBase]: For 14178/14342 co-relation queries the response was YES. [2024-11-12 16:25:52,114 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10962 conditions, 2539 events. 1168/2539 cut-off events. For 14178/14342 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 16778 event pairs, 260 based on Foata normal form. 127/2572 useless extension candidates. Maximal degree in co-relation 6437. Up to 821 conditions per place. [2024-11-12 16:25:52,128 INFO L140 encePairwiseOnDemand]: 28/32 looper letters, 64 selfloop transitions, 9 changer transitions 1/110 dead transitions. [2024-11-12 16:25:52,128 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 110 transitions, 1153 flow [2024-11-12 16:25:52,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-12 16:25:52,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-12 16:25:52,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 83 transitions. [2024-11-12 16:25:52,130 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6484375 [2024-11-12 16:25:52,130 INFO L175 Difference]: Start difference. First operand has 68 places, 108 transitions, 891 flow. Second operand 4 states and 83 transitions. [2024-11-12 16:25:52,130 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 110 transitions, 1153 flow [2024-11-12 16:25:52,150 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 110 transitions, 1145 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-11-12 16:25:52,152 INFO L231 Difference]: Finished difference. Result has 71 places, 88 transitions, 800 flow [2024-11-12 16:25:52,154 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=739, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=800, PETRI_PLACES=71, PETRI_TRANSITIONS=88} [2024-11-12 16:25:52,155 INFO L279 CegarLoopForPetriNet]: 32 programPoint places, 39 predicate places. [2024-11-12 16:25:52,155 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 88 transitions, 800 flow [2024-11-12 16:25:52,156 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:25:52,156 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:25:52,156 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 16:25:52,156 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-12 16:25:52,156 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-12 16:25:52,157 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:25:52,157 INFO L85 PathProgramCache]: Analyzing trace with hash -1080077797, now seen corresponding path program 7 times [2024-11-12 16:25:52,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:25:52,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826485315] [2024-11-12 16:25:52,157 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:25:52,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:25:52,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:25:52,481 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 16:25:52,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:25:52,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826485315] [2024-11-12 16:25:52,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [826485315] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 16:25:52,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [999678626] [2024-11-12 16:25:52,482 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-12 16:25:52,482 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 16:25:52,482 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 16:25:52,484 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 16:25:52,486 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-12 16:25:52,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:25:52,552 INFO L256 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-12 16:25:52,554 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 16:25:52,617 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-12 16:25:52,617 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-12 16:25:52,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [999678626] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:25:52,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-12 16:25:52,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-11-12 16:25:52,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739626064] [2024-11-12 16:25:52,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:25:52,618 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 16:25:52,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:25:52,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 16:25:52,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-12 16:25:52,625 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 32 [2024-11-12 16:25:52,626 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 88 transitions, 800 flow. Second operand has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:25:52,626 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:25:52,626 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 32 [2024-11-12 16:25:52,626 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 16:25:52,886 INFO L124 PetriNetUnfolderBase]: 1100/2306 cut-off events. [2024-11-12 16:25:52,886 INFO L125 PetriNetUnfolderBase]: For 14266/14436 co-relation queries the response was YES. [2024-11-12 16:25:52,898 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10510 conditions, 2306 events. 1100/2306 cut-off events. For 14266/14436 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 14406 event pairs, 175 based on Foata normal form. 97/2344 useless extension candidates. Maximal degree in co-relation 6138. Up to 895 conditions per place. [2024-11-12 16:25:52,901 INFO L140 encePairwiseOnDemand]: 27/32 looper letters, 0 selfloop transitions, 0 changer transitions 107/107 dead transitions. [2024-11-12 16:25:52,902 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 107 transitions, 1110 flow [2024-11-12 16:25:52,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-12 16:25:52,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-12 16:25:52,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 83 transitions. [2024-11-12 16:25:52,903 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6484375 [2024-11-12 16:25:52,903 INFO L175 Difference]: Start difference. First operand has 71 places, 88 transitions, 800 flow. Second operand 4 states and 83 transitions. [2024-11-12 16:25:52,904 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 107 transitions, 1110 flow [2024-11-12 16:25:52,922 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 107 transitions, 1076 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-11-12 16:25:52,924 INFO L231 Difference]: Finished difference. Result has 68 places, 0 transitions, 0 flow [2024-11-12 16:25:52,924 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=715, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=68, PETRI_TRANSITIONS=0} [2024-11-12 16:25:52,924 INFO L279 CegarLoopForPetriNet]: 32 programPoint places, 36 predicate places. [2024-11-12 16:25:52,925 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 0 transitions, 0 flow [2024-11-12 16:25:52,925 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:25:52,927 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (3 of 4 remaining) [2024-11-12 16:25:52,928 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (2 of 4 remaining) [2024-11-12 16:25:52,928 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2024-11-12 16:25:52,928 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2024-11-12 16:25:52,946 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-12 16:25:53,129 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 16:25:53,129 INFO L421 BasicCegarLoop]: Path program histogram: [7, 1, 1, 1, 1, 1] [2024-11-12 16:25:53,133 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-12 16:25:53,134 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-12 16:25:53,139 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 04:25:53 BasicIcfg [2024-11-12 16:25:53,139 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-12 16:25:53,141 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-12 16:25:53,141 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-12 16:25:53,141 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-12 16:25:53,141 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 04:25:42" (3/4) ... [2024-11-12 16:25:53,145 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-12 16:25:53,149 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-11-12 16:25:53,150 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-11-12 16:25:53,156 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 43 nodes and edges [2024-11-12 16:25:53,157 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2024-11-12 16:25:53,157 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-11-12 16:25:53,157 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-12 16:25:53,255 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-12 16:25:53,255 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-12 16:25:53,256 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-12 16:25:53,256 INFO L158 Benchmark]: Toolchain (without parser) took 11774.75ms. Allocated memory was 172.0MB in the beginning and 977.3MB in the end (delta: 805.3MB). Free memory was 89.4MB in the beginning and 600.1MB in the end (delta: -510.7MB). Peak memory consumption was 296.3MB. Max. memory is 16.1GB. [2024-11-12 16:25:53,256 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 172.0MB. Free memory is still 133.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-12 16:25:53,257 INFO L158 Benchmark]: CACSL2BoogieTranslator took 326.43ms. Allocated memory is still 172.0MB. Free memory was 89.2MB in the beginning and 135.2MB in the end (delta: -46.1MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. [2024-11-12 16:25:53,257 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.57ms. Allocated memory is still 172.0MB. Free memory was 135.2MB in the beginning and 142.4MB in the end (delta: -7.2MB). Peak memory consumption was 2.3MB. Max. memory is 16.1GB. [2024-11-12 16:25:53,257 INFO L158 Benchmark]: Boogie Preprocessor took 80.38ms. Allocated memory is still 172.0MB. Free memory was 142.4MB in the beginning and 140.3MB in the end (delta: 2.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-12 16:25:53,258 INFO L158 Benchmark]: RCFGBuilder took 498.67ms. Allocated memory is still 172.0MB. Free memory was 140.3MB in the beginning and 117.2MB in the end (delta: 23.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-12 16:25:53,258 INFO L158 Benchmark]: TraceAbstraction took 10701.04ms. Allocated memory was 172.0MB in the beginning and 977.3MB in the end (delta: 805.3MB). Free memory was 117.2MB in the beginning and 604.3MB in the end (delta: -487.1MB). Peak memory consumption was 321.4MB. Max. memory is 16.1GB. [2024-11-12 16:25:53,258 INFO L158 Benchmark]: Witness Printer took 115.09ms. Allocated memory is still 977.3MB. Free memory was 604.3MB in the beginning and 600.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-12 16:25:53,260 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 172.0MB. Free memory is still 133.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 326.43ms. Allocated memory is still 172.0MB. Free memory was 89.2MB in the beginning and 135.2MB in the end (delta: -46.1MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.57ms. Allocated memory is still 172.0MB. Free memory was 135.2MB in the beginning and 142.4MB in the end (delta: -7.2MB). Peak memory consumption was 2.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 80.38ms. Allocated memory is still 172.0MB. Free memory was 142.4MB in the beginning and 140.3MB in the end (delta: 2.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 498.67ms. Allocated memory is still 172.0MB. Free memory was 140.3MB in the beginning and 117.2MB in the end (delta: 23.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 10701.04ms. Allocated memory was 172.0MB in the beginning and 977.3MB in the end (delta: 805.3MB). Free memory was 117.2MB in the beginning and 604.3MB in the end (delta: -487.1MB). Peak memory consumption was 321.4MB. Max. memory is 16.1GB. * Witness Printer took 115.09ms. Allocated memory is still 977.3MB. Free memory was 604.3MB in the beginning and 600.1MB 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: 21]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 75]: 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, 47 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: 10.6s, OverallIterations: 12, TraceHistogramMax: 3, PathProgramHistogramMax: 7, EmptinessCheckTime: 0.0s, AutomataDifference: 5.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 285 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 263 mSDsluCounter, 18 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8 mSDsCounter, 45 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 838 IncrementalHoareTripleChecker+Invalid, 883 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 45 mSolverCounterUnsat, 10 mSDtfsCounter, 838 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 288 GetRequests, 238 SyntacticMatches, 1 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=891occurred in iteration=10, InterpolantAutomatonStates: 52, 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, 3.5s InterpolantComputationTime, 471 NumberOfCodeBlocks, 471 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 550 ConstructedInterpolants, 0 QuantifiedInterpolants, 2093 SizeOfPredicates, 10 NumberOfNonLiveVariables, 528 ConjunctsInSsa, 53 ConjunctsInUnsatCore, 19 InterpolantComputations, 10 PerfectInterpolantSequences, 42/91 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! [2024-11-12 16:25:53,293 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