./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/weaver/test-easy6.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/weaver/test-easy6.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 ce46a456eb9ebd463906f73dade5d1c1c222b26a063863b37340a2842c9ee284 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 21:52:48,275 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 21:52:48,319 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-22 21:52:48,325 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 21:52:48,325 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 21:52:48,344 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 21:52:48,344 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 21:52:48,344 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 21:52:48,345 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 21:52:48,345 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 21:52:48,345 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 21:52:48,345 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 21:52:48,346 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 21:52:48,346 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 21:52:48,346 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 21:52:48,346 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 21:52:48,347 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 21:52:48,347 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 21:52:48,349 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 21:52:48,349 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 21:52:48,351 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-22 21:52:48,351 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-22 21:52:48,351 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-22 21:52:48,352 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 21:52:48,352 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-22 21:52:48,352 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 21:52:48,352 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-22 21:52:48,352 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 21:52:48,352 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 21:52:48,353 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 21:52:48,353 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 21:52:48,353 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 21:52:48,353 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 21:52:48,353 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 21:52:48,353 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 21:52:48,354 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 21:52:48,354 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 21:52:48,354 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 21:52:48,354 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 21:52:48,354 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 21:52:48,354 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 21:52:48,357 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 21:52:48,357 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ce46a456eb9ebd463906f73dade5d1c1c222b26a063863b37340a2842c9ee284 [2024-11-22 21:52:48,526 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 21:52:48,545 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 21:52:48,547 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 21:52:48,548 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 21:52:48,548 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 21:52:48,549 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/test-easy6.wvr.c [2024-11-22 21:52:49,770 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 21:52:49,888 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 21:52:49,888 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/test-easy6.wvr.c [2024-11-22 21:52:49,893 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/31355e7bb/9842137bce794097a5d890694ad6980d/FLAG38293332b [2024-11-22 21:52:49,903 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/31355e7bb/9842137bce794097a5d890694ad6980d [2024-11-22 21:52:49,905 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 21:52:49,906 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 21:52:49,906 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 21:52:49,906 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 21:52:49,910 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 21:52:49,911 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 09:52:49" (1/1) ... [2024-11-22 21:52:49,911 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ecbf0d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:52:49, skipping insertion in model container [2024-11-22 21:52:49,912 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 09:52:49" (1/1) ... [2024-11-22 21:52:49,931 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 21:52:50,080 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 21:52:50,088 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 21:52:50,102 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 21:52:50,114 INFO L204 MainTranslator]: Completed translation [2024-11-22 21:52:50,114 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:52:50 WrapperNode [2024-11-22 21:52:50,115 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 21:52:50,115 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 21:52:50,116 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 21:52:50,116 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 21:52:50,124 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:52:50" (1/1) ... [2024-11-22 21:52:50,129 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:52:50" (1/1) ... [2024-11-22 21:52:50,143 INFO L138 Inliner]: procedures = 18, calls = 14, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 94 [2024-11-22 21:52:50,143 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 21:52:50,144 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 21:52:50,144 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 21:52:50,144 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 21:52:50,152 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:52:50" (1/1) ... [2024-11-22 21:52:50,152 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:52:50" (1/1) ... [2024-11-22 21:52:50,154 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:52:50" (1/1) ... [2024-11-22 21:52:50,163 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]. [2024-11-22 21:52:50,164 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:52:50" (1/1) ... [2024-11-22 21:52:50,164 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:52:50" (1/1) ... [2024-11-22 21:52:50,167 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:52:50" (1/1) ... [2024-11-22 21:52:50,169 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:52:50" (1/1) ... [2024-11-22 21:52:50,170 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:52:50" (1/1) ... [2024-11-22 21:52:50,171 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:52:50" (1/1) ... [2024-11-22 21:52:50,172 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 21:52:50,173 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 21:52:50,173 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 21:52:50,173 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 21:52:50,173 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:52:50" (1/1) ... [2024-11-22 21:52:50,177 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 21:52:50,184 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 21:52:50,204 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) [2024-11-22 21:52:50,207 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 [2024-11-22 21:52:50,244 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 21:52:50,244 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-22 21:52:50,244 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-22 21:52:50,244 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-22 21:52:50,245 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-22 21:52:50,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 21:52:50,245 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 21:52:50,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 21:52:50,247 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-22 21:52:50,320 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 21:52:50,321 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 21:52:50,517 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-22 21:52:50,517 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 21:52:50,625 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 21:52:50,625 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-22 21:52:50,625 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:52:50 BoogieIcfgContainer [2024-11-22 21:52:50,625 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 21:52:50,627 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 21:52:50,628 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 21:52:50,631 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 21:52:50,631 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 09:52:49" (1/3) ... [2024-11-22 21:52:50,632 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71ff6697 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 09:52:50, skipping insertion in model container [2024-11-22 21:52:50,632 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:52:50" (2/3) ... [2024-11-22 21:52:50,632 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71ff6697 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 09:52:50, skipping insertion in model container [2024-11-22 21:52:50,632 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:52:50" (3/3) ... [2024-11-22 21:52:50,633 INFO L112 eAbstractionObserver]: Analyzing ICFG test-easy6.wvr.c [2024-11-22 21:52:50,644 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 21:52:50,644 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-22 21:52:50,644 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-22 21:52:50,673 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-22 21:52:50,697 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 41 places, 34 transitions, 82 flow [2024-11-22 21:52:50,722 INFO L124 PetriNetUnfolderBase]: 0/32 cut-off events. [2024-11-22 21:52:50,726 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-22 21:52:50,728 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41 conditions, 32 events. 0/32 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 27 event pairs, 0 based on Foata normal form. 0/30 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2024-11-22 21:52:50,729 INFO L82 GeneralOperation]: Start removeDead. Operand has 41 places, 34 transitions, 82 flow [2024-11-22 21:52:50,734 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 38 places, 31 transitions, 74 flow [2024-11-22 21:52:50,740 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 21:52:50,745 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;@4b7a438, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 21:52:50,745 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-22 21:52:50,753 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-22 21:52:50,753 INFO L124 PetriNetUnfolderBase]: 0/28 cut-off events. [2024-11-22 21:52:50,753 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-22 21:52:50,753 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:52:50,754 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:52:50,754 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)] === [2024-11-22 21:52:50,760 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:52:50,760 INFO L85 PathProgramCache]: Analyzing trace with hash 767302104, now seen corresponding path program 1 times [2024-11-22 21:52:50,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 21:52:50,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172165983] [2024-11-22 21:52:50,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:52:50,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 21:52:50,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:52:51,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:52:51,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 21:52:51,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172165983] [2024-11-22 21:52:51,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172165983] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:52:51,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:52:51,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 21:52:51,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281545012] [2024-11-22 21:52:51,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:52:51,194 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 21:52:51,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 21:52:51,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 21:52:51,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-22 21:52:51,233 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 34 [2024-11-22 21:52:51,235 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 31 transitions, 74 flow. Second operand has 7 states, 7 states have (on average 18.285714285714285) internal successors, (128), 7 states have internal predecessors, (128), 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) [2024-11-22 21:52:51,235 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:52:51,235 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 34 [2024-11-22 21:52:51,236 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:52:51,432 INFO L124 PetriNetUnfolderBase]: 92/254 cut-off events. [2024-11-22 21:52:51,434 INFO L125 PetriNetUnfolderBase]: For 29/29 co-relation queries the response was YES. [2024-11-22 21:52:51,437 INFO L83 FinitePrefix]: Finished finitePrefix Result has 490 conditions, 254 events. 92/254 cut-off events. For 29/29 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1178 event pairs, 20 based on Foata normal form. 4/249 useless extension candidates. Maximal degree in co-relation 405. Up to 55 conditions per place. [2024-11-22 21:52:51,440 INFO L140 encePairwiseOnDemand]: 27/34 looper letters, 28 selfloop transitions, 6 changer transitions 13/60 dead transitions. [2024-11-22 21:52:51,440 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 60 transitions, 250 flow [2024-11-22 21:52:51,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 21:52:51,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-22 21:52:51,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 163 transitions. [2024-11-22 21:52:51,452 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6848739495798319 [2024-11-22 21:52:51,453 INFO L175 Difference]: Start difference. First operand has 38 places, 31 transitions, 74 flow. Second operand 7 states and 163 transitions. [2024-11-22 21:52:51,454 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 60 transitions, 250 flow [2024-11-22 21:52:51,456 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 60 transitions, 226 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-22 21:52:51,460 INFO L231 Difference]: Finished difference. Result has 41 places, 33 transitions, 97 flow [2024-11-22 21:52:51,461 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=97, PETRI_PLACES=41, PETRI_TRANSITIONS=33} [2024-11-22 21:52:51,463 INFO L277 CegarLoopForPetriNet]: 38 programPoint places, 3 predicate places. [2024-11-22 21:52:51,464 INFO L471 AbstractCegarLoop]: Abstraction has has 41 places, 33 transitions, 97 flow [2024-11-22 21:52:51,464 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.285714285714285) internal successors, (128), 7 states have internal predecessors, (128), 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) [2024-11-22 21:52:51,464 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:52:51,464 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:52:51,465 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 21:52:51,465 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)] === [2024-11-22 21:52:51,465 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:52:51,465 INFO L85 PathProgramCache]: Analyzing trace with hash -1096940356, now seen corresponding path program 2 times [2024-11-22 21:52:51,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 21:52:51,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831912122] [2024-11-22 21:52:51,466 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 21:52:51,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 21:52:51,483 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-22 21:52:51,483 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 21:52:51,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:52:51,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 21:52:51,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831912122] [2024-11-22 21:52:51,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831912122] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:52:51,623 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:52:51,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 21:52:51,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507931573] [2024-11-22 21:52:51,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:52:51,625 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 21:52:51,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 21:52:51,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 21:52:51,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-22 21:52:51,642 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 34 [2024-11-22 21:52:51,642 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 33 transitions, 97 flow. Second operand has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 7 states have internal predecessors, (116), 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) [2024-11-22 21:52:51,644 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:52:51,644 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 34 [2024-11-22 21:52:51,644 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:52:51,852 INFO L124 PetriNetUnfolderBase]: 229/581 cut-off events. [2024-11-22 21:52:51,852 INFO L125 PetriNetUnfolderBase]: For 45/45 co-relation queries the response was YES. [2024-11-22 21:52:51,855 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1155 conditions, 581 events. 229/581 cut-off events. For 45/45 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 3155 event pairs, 51 based on Foata normal form. 4/574 useless extension candidates. Maximal degree in co-relation 1125. Up to 143 conditions per place. [2024-11-22 21:52:51,857 INFO L140 encePairwiseOnDemand]: 26/34 looper letters, 37 selfloop transitions, 11 changer transitions 10/73 dead transitions. [2024-11-22 21:52:51,857 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 73 transitions, 300 flow [2024-11-22 21:52:51,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 21:52:51,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-22 21:52:51,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 185 transitions. [2024-11-22 21:52:51,860 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6045751633986928 [2024-11-22 21:52:51,860 INFO L175 Difference]: Start difference. First operand has 41 places, 33 transitions, 97 flow. Second operand 9 states and 185 transitions. [2024-11-22 21:52:51,860 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 73 transitions, 300 flow [2024-11-22 21:52:51,863 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 73 transitions, 296 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-11-22 21:52:51,865 INFO L231 Difference]: Finished difference. Result has 52 places, 41 transitions, 169 flow [2024-11-22 21:52:51,867 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=95, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=169, PETRI_PLACES=52, PETRI_TRANSITIONS=41} [2024-11-22 21:52:51,868 INFO L277 CegarLoopForPetriNet]: 38 programPoint places, 14 predicate places. [2024-11-22 21:52:51,868 INFO L471 AbstractCegarLoop]: Abstraction has has 52 places, 41 transitions, 169 flow [2024-11-22 21:52:51,868 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 7 states have internal predecessors, (116), 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) [2024-11-22 21:52:51,868 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:52:51,868 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:52:51,868 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 21:52:51,868 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)] === [2024-11-22 21:52:51,869 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:52:51,869 INFO L85 PathProgramCache]: Analyzing trace with hash 1040410760, now seen corresponding path program 3 times [2024-11-22 21:52:51,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 21:52:51,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557570547] [2024-11-22 21:52:51,870 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-22 21:52:51,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 21:52:51,888 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-22 21:52:51,889 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 21:52:51,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:52:51,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 21:52:51,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557570547] [2024-11-22 21:52:51,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [557570547] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:52:51,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:52:51,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 21:52:51,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707149866] [2024-11-22 21:52:51,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:52:51,931 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 21:52:51,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 21:52:51,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 21:52:51,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 21:52:51,940 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 34 [2024-11-22 21:52:51,940 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 41 transitions, 169 flow. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:52:51,941 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:52:51,941 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 34 [2024-11-22 21:52:51,941 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:52:51,989 INFO L124 PetriNetUnfolderBase]: 111/400 cut-off events. [2024-11-22 21:52:51,990 INFO L125 PetriNetUnfolderBase]: For 187/191 co-relation queries the response was YES. [2024-11-22 21:52:51,992 INFO L83 FinitePrefix]: Finished finitePrefix Result has 931 conditions, 400 events. 111/400 cut-off events. For 187/191 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 2350 event pairs, 88 based on Foata normal form. 9/382 useless extension candidates. Maximal degree in co-relation 757. Up to 215 conditions per place. [2024-11-22 21:52:51,994 INFO L140 encePairwiseOnDemand]: 31/34 looper letters, 16 selfloop transitions, 2 changer transitions 0/45 dead transitions. [2024-11-22 21:52:51,994 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 45 transitions, 214 flow [2024-11-22 21:52:51,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 21:52:51,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 21:52:51,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 73 transitions. [2024-11-22 21:52:51,996 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7156862745098039 [2024-11-22 21:52:51,996 INFO L175 Difference]: Start difference. First operand has 52 places, 41 transitions, 169 flow. Second operand 3 states and 73 transitions. [2024-11-22 21:52:51,996 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 45 transitions, 214 flow [2024-11-22 21:52:52,001 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 45 transitions, 212 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-11-22 21:52:52,003 INFO L231 Difference]: Finished difference. Result has 52 places, 41 transitions, 175 flow [2024-11-22 21:52:52,004 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=167, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=175, PETRI_PLACES=52, PETRI_TRANSITIONS=41} [2024-11-22 21:52:52,004 INFO L277 CegarLoopForPetriNet]: 38 programPoint places, 14 predicate places. [2024-11-22 21:52:52,004 INFO L471 AbstractCegarLoop]: Abstraction has has 52 places, 41 transitions, 175 flow [2024-11-22 21:52:52,004 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:52:52,004 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:52:52,005 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:52:52,005 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 21:52:52,005 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)] === [2024-11-22 21:52:52,005 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:52:52,005 INFO L85 PathProgramCache]: Analyzing trace with hash -1950603516, now seen corresponding path program 4 times [2024-11-22 21:52:52,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 21:52:52,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473093803] [2024-11-22 21:52:52,005 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-22 21:52:52,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 21:52:52,020 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-22 21:52:52,020 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 21:52:52,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:52:52,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 21:52:52,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473093803] [2024-11-22 21:52:52,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1473093803] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:52:52,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:52:52,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 21:52:52,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305405311] [2024-11-22 21:52:52,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:52:52,093 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 21:52:52,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 21:52:52,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 21:52:52,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-22 21:52:52,101 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 34 [2024-11-22 21:52:52,101 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 41 transitions, 175 flow. Second operand has 7 states, 7 states have (on average 18.285714285714285) internal successors, (128), 7 states have internal predecessors, (128), 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) [2024-11-22 21:52:52,102 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:52:52,102 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 34 [2024-11-22 21:52:52,102 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:52:52,228 INFO L124 PetriNetUnfolderBase]: 180/473 cut-off events. [2024-11-22 21:52:52,228 INFO L125 PetriNetUnfolderBase]: For 284/290 co-relation queries the response was YES. [2024-11-22 21:52:52,230 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1220 conditions, 473 events. 180/473 cut-off events. For 284/290 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 2609 event pairs, 49 based on Foata normal form. 8/462 useless extension candidates. Maximal degree in co-relation 549. Up to 114 conditions per place. [2024-11-22 21:52:52,231 INFO L140 encePairwiseOnDemand]: 29/34 looper letters, 20 selfloop transitions, 5 changer transitions 13/59 dead transitions. [2024-11-22 21:52:52,231 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 59 transitions, 296 flow [2024-11-22 21:52:52,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 21:52:52,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-22 21:52:52,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 151 transitions. [2024-11-22 21:52:52,235 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.634453781512605 [2024-11-22 21:52:52,235 INFO L175 Difference]: Start difference. First operand has 52 places, 41 transitions, 175 flow. Second operand 7 states and 151 transitions. [2024-11-22 21:52:52,235 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 59 transitions, 296 flow [2024-11-22 21:52:52,238 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 59 transitions, 292 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 21:52:52,240 INFO L231 Difference]: Finished difference. Result has 57 places, 39 transitions, 174 flow [2024-11-22 21:52:52,241 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=171, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=174, PETRI_PLACES=57, PETRI_TRANSITIONS=39} [2024-11-22 21:52:52,242 INFO L277 CegarLoopForPetriNet]: 38 programPoint places, 19 predicate places. [2024-11-22 21:52:52,242 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 39 transitions, 174 flow [2024-11-22 21:52:52,242 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.285714285714285) internal successors, (128), 7 states have internal predecessors, (128), 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) [2024-11-22 21:52:52,243 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:52:52,244 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:52:52,244 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 21:52:52,244 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)] === [2024-11-22 21:52:52,244 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:52:52,244 INFO L85 PathProgramCache]: Analyzing trace with hash 1407211470, now seen corresponding path program 5 times [2024-11-22 21:52:52,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 21:52:52,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576454307] [2024-11-22 21:52:52,245 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-22 21:52:52,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 21:52:52,257 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-22 21:52:52,257 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 21:52:52,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:52:52,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 21:52:52,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576454307] [2024-11-22 21:52:52,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576454307] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:52:52,389 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:52:52,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 21:52:52,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151768781] [2024-11-22 21:52:52,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:52:52,390 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 21:52:52,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 21:52:52,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 21:52:52,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-22 21:52:52,404 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 34 [2024-11-22 21:52:52,405 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 39 transitions, 174 flow. Second operand has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 7 states have internal predecessors, (116), 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) [2024-11-22 21:52:52,405 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:52:52,405 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 34 [2024-11-22 21:52:52,405 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:52:52,556 INFO L124 PetriNetUnfolderBase]: 194/514 cut-off events. [2024-11-22 21:52:52,557 INFO L125 PetriNetUnfolderBase]: For 498/519 co-relation queries the response was YES. [2024-11-22 21:52:52,558 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1362 conditions, 514 events. 194/514 cut-off events. For 498/519 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 2697 event pairs, 62 based on Foata normal form. 25/528 useless extension candidates. Maximal degree in co-relation 1324. Up to 146 conditions per place. [2024-11-22 21:52:52,559 INFO L140 encePairwiseOnDemand]: 27/34 looper letters, 37 selfloop transitions, 8 changer transitions 10/68 dead transitions. [2024-11-22 21:52:52,559 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 68 transitions, 370 flow [2024-11-22 21:52:52,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 21:52:52,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-22 21:52:52,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 168 transitions. [2024-11-22 21:52:52,561 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6176470588235294 [2024-11-22 21:52:52,561 INFO L175 Difference]: Start difference. First operand has 57 places, 39 transitions, 174 flow. Second operand 8 states and 168 transitions. [2024-11-22 21:52:52,561 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 68 transitions, 370 flow [2024-11-22 21:52:52,563 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 68 transitions, 353 flow, removed 3 selfloop flow, removed 6 redundant places. [2024-11-22 21:52:52,564 INFO L231 Difference]: Finished difference. Result has 57 places, 37 transitions, 167 flow [2024-11-22 21:52:52,564 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=161, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=167, PETRI_PLACES=57, PETRI_TRANSITIONS=37} [2024-11-22 21:52:52,564 INFO L277 CegarLoopForPetriNet]: 38 programPoint places, 19 predicate places. [2024-11-22 21:52:52,565 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 37 transitions, 167 flow [2024-11-22 21:52:52,565 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 7 states have internal predecessors, (116), 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) [2024-11-22 21:52:52,565 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:52:52,565 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:52:52,565 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 21:52:52,566 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)] === [2024-11-22 21:52:52,566 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:52:52,566 INFO L85 PathProgramCache]: Analyzing trace with hash 592478148, now seen corresponding path program 6 times [2024-11-22 21:52:52,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 21:52:52,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789445757] [2024-11-22 21:52:52,567 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-22 21:52:52,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 21:52:52,575 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2024-11-22 21:52:52,576 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 21:52:52,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:52:52,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 21:52:52,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789445757] [2024-11-22 21:52:52,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789445757] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:52:52,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:52:52,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 21:52:52,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038435215] [2024-11-22 21:52:52,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:52:52,627 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 21:52:52,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 21:52:52,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 21:52:52,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 21:52:52,633 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 34 [2024-11-22 21:52:52,633 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 37 transitions, 167 flow. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:52:52,633 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:52:52,633 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 34 [2024-11-22 21:52:52,633 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:52:52,673 INFO L124 PetriNetUnfolderBase]: 72/282 cut-off events. [2024-11-22 21:52:52,674 INFO L125 PetriNetUnfolderBase]: For 236/240 co-relation queries the response was YES. [2024-11-22 21:52:52,674 INFO L83 FinitePrefix]: Finished finitePrefix Result has 715 conditions, 282 events. 72/282 cut-off events. For 236/240 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1525 event pairs, 71 based on Foata normal form. 8/266 useless extension candidates. Maximal degree in co-relation 410. Up to 175 conditions per place. [2024-11-22 21:52:52,675 INFO L140 encePairwiseOnDemand]: 31/34 looper letters, 13 selfloop transitions, 2 changer transitions 0/38 dead transitions. [2024-11-22 21:52:52,675 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 38 transitions, 199 flow [2024-11-22 21:52:52,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 21:52:52,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 21:52:52,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 70 transitions. [2024-11-22 21:52:52,676 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6862745098039216 [2024-11-22 21:52:52,676 INFO L175 Difference]: Start difference. First operand has 57 places, 37 transitions, 167 flow. Second operand 3 states and 70 transitions. [2024-11-22 21:52:52,676 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 38 transitions, 199 flow [2024-11-22 21:52:52,677 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 38 transitions, 176 flow, removed 2 selfloop flow, removed 7 redundant places. [2024-11-22 21:52:52,678 INFO L231 Difference]: Finished difference. Result has 52 places, 37 transitions, 152 flow [2024-11-22 21:52:52,678 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=144, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=152, PETRI_PLACES=52, PETRI_TRANSITIONS=37} [2024-11-22 21:52:52,679 INFO L277 CegarLoopForPetriNet]: 38 programPoint places, 14 predicate places. [2024-11-22 21:52:52,679 INFO L471 AbstractCegarLoop]: Abstraction has has 52 places, 37 transitions, 152 flow [2024-11-22 21:52:52,679 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:52:52,679 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:52:52,679 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:52:52,679 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 21:52:52,679 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)] === [2024-11-22 21:52:52,679 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:52:52,680 INFO L85 PathProgramCache]: Analyzing trace with hash 1681327840, now seen corresponding path program 7 times [2024-11-22 21:52:52,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 21:52:52,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065564432] [2024-11-22 21:52:52,680 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-22 21:52:52,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 21:52:52,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:52:52,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:52:52,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 21:52:52,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065564432] [2024-11-22 21:52:52,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1065564432] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:52:52,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:52:52,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 21:52:52,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377673774] [2024-11-22 21:52:52,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:52:52,778 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 21:52:52,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 21:52:52,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 21:52:52,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-22 21:52:52,787 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 34 [2024-11-22 21:52:52,788 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 37 transitions, 152 flow. Second operand has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 7 states have internal predecessors, (116), 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) [2024-11-22 21:52:52,788 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:52:52,788 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 34 [2024-11-22 21:52:52,788 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:52:52,885 INFO L124 PetriNetUnfolderBase]: 94/255 cut-off events. [2024-11-22 21:52:52,885 INFO L125 PetriNetUnfolderBase]: For 236/236 co-relation queries the response was YES. [2024-11-22 21:52:52,886 INFO L83 FinitePrefix]: Finished finitePrefix Result has 691 conditions, 255 events. 94/255 cut-off events. For 236/236 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1025 event pairs, 40 based on Foata normal form. 4/250 useless extension candidates. Maximal degree in co-relation 438. Up to 146 conditions per place. [2024-11-22 21:52:52,887 INFO L140 encePairwiseOnDemand]: 27/34 looper letters, 18 selfloop transitions, 3 changer transitions 11/45 dead transitions. [2024-11-22 21:52:52,887 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 45 transitions, 234 flow [2024-11-22 21:52:52,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 21:52:52,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-22 21:52:52,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 117 transitions. [2024-11-22 21:52:52,888 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5735294117647058 [2024-11-22 21:52:52,888 INFO L175 Difference]: Start difference. First operand has 52 places, 37 transitions, 152 flow. Second operand 6 states and 117 transitions. [2024-11-22 21:52:52,888 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 45 transitions, 234 flow [2024-11-22 21:52:52,889 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 45 transitions, 228 flow, removed 1 selfloop flow, removed 3 redundant places. [2024-11-22 21:52:52,889 INFO L231 Difference]: Finished difference. Result has 54 places, 31 transitions, 121 flow [2024-11-22 21:52:52,889 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=135, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=121, PETRI_PLACES=54, PETRI_TRANSITIONS=31} [2024-11-22 21:52:52,890 INFO L277 CegarLoopForPetriNet]: 38 programPoint places, 16 predicate places. [2024-11-22 21:52:52,890 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 31 transitions, 121 flow [2024-11-22 21:52:52,890 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 7 states have internal predecessors, (116), 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) [2024-11-22 21:52:52,890 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:52:52,890 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:52:52,890 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 21:52:52,891 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)] === [2024-11-22 21:52:52,891 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:52:52,891 INFO L85 PathProgramCache]: Analyzing trace with hash -1774861624, now seen corresponding path program 8 times [2024-11-22 21:52:52,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 21:52:52,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072357260] [2024-11-22 21:52:52,891 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 21:52:52,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 21:52:52,898 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-22 21:52:52,898 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 21:52:52,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:52:52,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 21:52:52,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072357260] [2024-11-22 21:52:52,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072357260] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:52:52,972 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:52:52,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 21:52:52,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496163055] [2024-11-22 21:52:52,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:52:52,973 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 21:52:52,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 21:52:52,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 21:52:52,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-22 21:52:52,980 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 34 [2024-11-22 21:52:52,981 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 31 transitions, 121 flow. Second operand has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 7 states have internal predecessors, (116), 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) [2024-11-22 21:52:52,981 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:52:52,981 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 34 [2024-11-22 21:52:52,981 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:52:53,035 INFO L124 PetriNetUnfolderBase]: 21/68 cut-off events. [2024-11-22 21:52:53,035 INFO L125 PetriNetUnfolderBase]: For 58/58 co-relation queries the response was YES. [2024-11-22 21:52:53,035 INFO L83 FinitePrefix]: Finished finitePrefix Result has 201 conditions, 68 events. 21/68 cut-off events. For 58/58 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 160 event pairs, 5 based on Foata normal form. 4/71 useless extension candidates. Maximal degree in co-relation 188. Up to 18 conditions per place. [2024-11-22 21:52:53,035 INFO L140 encePairwiseOnDemand]: 28/34 looper letters, 0 selfloop transitions, 0 changer transitions 29/29 dead transitions. [2024-11-22 21:52:53,035 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 29 transitions, 152 flow [2024-11-22 21:52:53,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 21:52:53,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-22 21:52:53,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 120 transitions. [2024-11-22 21:52:53,037 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5042016806722689 [2024-11-22 21:52:53,037 INFO L175 Difference]: Start difference. First operand has 54 places, 31 transitions, 121 flow. Second operand 7 states and 120 transitions. [2024-11-22 21:52:53,037 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 29 transitions, 152 flow [2024-11-22 21:52:53,038 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 29 transitions, 121 flow, removed 9 selfloop flow, removed 10 redundant places. [2024-11-22 21:52:53,038 INFO L231 Difference]: Finished difference. Result has 37 places, 0 transitions, 0 flow [2024-11-22 21:52:53,038 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=59, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=37, PETRI_TRANSITIONS=0} [2024-11-22 21:52:53,039 INFO L277 CegarLoopForPetriNet]: 38 programPoint places, -1 predicate places. [2024-11-22 21:52:53,039 INFO L471 AbstractCegarLoop]: Abstraction has has 37 places, 0 transitions, 0 flow [2024-11-22 21:52:53,039 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 7 states have internal predecessors, (116), 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) [2024-11-22 21:52:53,043 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (3 of 4 remaining) [2024-11-22 21:52:53,044 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (2 of 4 remaining) [2024-11-22 21:52:53,044 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2024-11-22 21:52:53,044 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2024-11-22 21:52:53,044 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 21:52:53,044 INFO L407 BasicCegarLoop]: Path program histogram: [8] [2024-11-22 21:52:53,047 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-22 21:52:53,047 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-22 21:52:53,051 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 09:52:53 BasicIcfg [2024-11-22 21:52:53,051 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-22 21:52:53,051 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-22 21:52:53,052 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-22 21:52:53,052 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-22 21:52:53,052 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:52:50" (3/4) ... [2024-11-22 21:52:53,057 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-22 21:52:53,059 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-11-22 21:52:53,060 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-11-22 21:52:53,062 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 44 nodes and edges [2024-11-22 21:52:53,063 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2024-11-22 21:52:53,063 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-22 21:52:53,063 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-22 21:52:53,133 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-22 21:52:53,133 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-22 21:52:53,135 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-22 21:52:53,135 INFO L158 Benchmark]: Toolchain (without parser) took 3230.02ms. Allocated memory was 192.9MB in the beginning and 264.2MB in the end (delta: 71.3MB). Free memory was 122.6MB in the beginning and 209.7MB in the end (delta: -87.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-22 21:52:53,136 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 192.9MB. Free memory was 149.9MB in the beginning and 149.7MB in the end (delta: 188.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-22 21:52:53,136 INFO L158 Benchmark]: CACSL2BoogieTranslator took 208.48ms. Allocated memory is still 192.9MB. Free memory was 122.6MB in the beginning and 109.7MB in the end (delta: 12.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-22 21:52:53,136 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.16ms. Allocated memory is still 192.9MB. Free memory was 109.7MB in the beginning and 108.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-22 21:52:53,136 INFO L158 Benchmark]: Boogie Preprocessor took 27.97ms. Allocated memory is still 192.9MB. Free memory was 107.9MB in the beginning and 106.0MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-22 21:52:53,137 INFO L158 Benchmark]: RCFGBuilder took 452.96ms. Allocated memory is still 192.9MB. Free memory was 106.0MB in the beginning and 147.8MB in the end (delta: -41.8MB). Peak memory consumption was 11.8MB. Max. memory is 16.1GB. [2024-11-22 21:52:53,137 INFO L158 Benchmark]: TraceAbstraction took 2423.59ms. Allocated memory was 192.9MB in the beginning and 264.2MB in the end (delta: 71.3MB). Free memory was 146.9MB in the beginning and 214.9MB in the end (delta: -68.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-22 21:52:53,137 INFO L158 Benchmark]: Witness Printer took 83.68ms. Allocated memory is still 264.2MB. Free memory was 214.9MB in the beginning and 209.7MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-22 21:52:53,138 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 192.9MB. Free memory was 149.9MB in the beginning and 149.7MB in the end (delta: 188.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 208.48ms. Allocated memory is still 192.9MB. Free memory was 122.6MB in the beginning and 109.7MB in the end (delta: 12.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.16ms. Allocated memory is still 192.9MB. Free memory was 109.7MB in the beginning and 108.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.97ms. Allocated memory is still 192.9MB. Free memory was 107.9MB in the beginning and 106.0MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 452.96ms. Allocated memory is still 192.9MB. Free memory was 106.0MB in the beginning and 147.8MB in the end (delta: -41.8MB). Peak memory consumption was 11.8MB. Max. memory is 16.1GB. * TraceAbstraction took 2423.59ms. Allocated memory was 192.9MB in the beginning and 264.2MB in the end (delta: 71.3MB). Free memory was 146.9MB in the beginning and 214.9MB in the end (delta: -68.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Witness Printer took 83.68ms. Allocated memory is still 264.2MB. Free memory was 214.9MB in the beginning and 209.7MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. 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: 70]: 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, 59 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: 2.4s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 8, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 305 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 289 mSDsluCounter, 54 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 31 mSDsCounter, 18 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 788 IncrementalHoareTripleChecker+Invalid, 806 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 18 mSolverCounterUnsat, 23 mSDtfsCounter, 788 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 68 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=175occurred in iteration=3, InterpolantAutomatonStates: 50, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 232 NumberOfCodeBlocks, 232 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 224 ConstructedInterpolants, 0 QuantifiedInterpolants, 626 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-22 21:52:53,158 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