./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/pthread-atomic/peterson.i --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/pthread-atomic/peterson.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6ea11bc1281710e3131473f2a673d7d78c2a42824b03a7d695132107cc74f895 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 21:20:06,073 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 21:20:06,132 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-22 21:20:06,136 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 21:20:06,136 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 21:20:06,159 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 21:20:06,159 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 21:20:06,159 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 21:20:06,160 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 21:20:06,160 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 21:20:06,160 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 21:20:06,160 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 21:20:06,161 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 21:20:06,161 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 21:20:06,161 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 21:20:06,161 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 21:20:06,162 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 21:20:06,162 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 21:20:06,164 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 21:20:06,164 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 21:20:06,167 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-22 21:20:06,167 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-22 21:20:06,167 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-22 21:20:06,167 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 21:20:06,167 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-22 21:20:06,168 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 21:20:06,168 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-22 21:20:06,168 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 21:20:06,168 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 21:20:06,168 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 21:20:06,168 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 21:20:06,168 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 21:20:06,168 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 21:20:06,169 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 21:20:06,169 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 21:20:06,169 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 21:20:06,169 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 21:20:06,169 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 21:20:06,169 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 21:20:06,169 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 21:20:06,170 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 21:20:06,172 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 21:20:06,172 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6ea11bc1281710e3131473f2a673d7d78c2a42824b03a7d695132107cc74f895 [2024-11-22 21:20:06,369 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 21:20:06,389 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 21:20:06,393 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 21:20:06,394 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 21:20:06,394 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 21:20:06,395 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-atomic/peterson.i [2024-11-22 21:20:07,600 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 21:20:07,798 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 21:20:07,798 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-atomic/peterson.i [2024-11-22 21:20:07,817 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e82fb7b9/a4c6178de67746a58a4e9aff0bdbf110/FLAG855d7cd94 [2024-11-22 21:20:07,827 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e82fb7b9/a4c6178de67746a58a4e9aff0bdbf110 [2024-11-22 21:20:07,829 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 21:20:07,830 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 21:20:07,831 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 21:20:07,831 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 21:20:07,837 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 21:20:07,837 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 09:20:07" (1/1) ... [2024-11-22 21:20:07,838 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46d15d86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:20:07, skipping insertion in model container [2024-11-22 21:20:07,839 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 09:20:07" (1/1) ... [2024-11-22 21:20:07,880 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 21:20:08,154 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 21:20:08,161 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 21:20:08,201 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 21:20:08,235 INFO L204 MainTranslator]: Completed translation [2024-11-22 21:20:08,235 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:20:08 WrapperNode [2024-11-22 21:20:08,235 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 21:20:08,236 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 21:20:08,236 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 21:20:08,236 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 21:20:08,241 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:20:08" (1/1) ... [2024-11-22 21:20:08,250 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:20:08" (1/1) ... [2024-11-22 21:20:08,268 INFO L138 Inliner]: procedures = 166, calls = 10, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 68 [2024-11-22 21:20:08,268 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 21:20:08,269 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 21:20:08,269 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 21:20:08,269 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 21:20:08,277 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:20:08" (1/1) ... [2024-11-22 21:20:08,277 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:20:08" (1/1) ... [2024-11-22 21:20:08,283 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:20:08" (1/1) ... [2024-11-22 21:20:08,296 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 21:20:08,296 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:20:08" (1/1) ... [2024-11-22 21:20:08,297 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:20:08" (1/1) ... [2024-11-22 21:20:08,300 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:20:08" (1/1) ... [2024-11-22 21:20:08,302 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:20:08" (1/1) ... [2024-11-22 21:20:08,304 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:20:08" (1/1) ... [2024-11-22 21:20:08,305 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:20:08" (1/1) ... [2024-11-22 21:20:08,307 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 21:20:08,313 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 21:20:08,313 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 21:20:08,313 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 21:20:08,314 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:20:08" (1/1) ... [2024-11-22 21:20:08,318 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 21:20:08,326 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 21:20:08,346 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 21:20:08,349 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 21:20:08,385 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2024-11-22 21:20:08,386 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2024-11-22 21:20:08,386 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2024-11-22 21:20:08,386 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2024-11-22 21:20:08,387 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 21:20:08,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 21:20:08,387 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 21:20:08,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 21:20:08,388 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 21:20:08,511 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 21:20:08,513 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 21:20:08,597 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-22 21:20:08,597 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 21:20:08,649 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 21:20:08,649 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-22 21:20:08,649 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:20:08 BoogieIcfgContainer [2024-11-22 21:20:08,650 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 21:20:08,651 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 21:20:08,651 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 21:20:08,654 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 21:20:08,654 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 09:20:07" (1/3) ... [2024-11-22 21:20:08,655 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9e133c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 09:20:08, skipping insertion in model container [2024-11-22 21:20:08,655 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:20:08" (2/3) ... [2024-11-22 21:20:08,655 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9e133c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 09:20:08, skipping insertion in model container [2024-11-22 21:20:08,655 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:20:08" (3/3) ... [2024-11-22 21:20:08,656 INFO L112 eAbstractionObserver]: Analyzing ICFG peterson.i [2024-11-22 21:20:08,669 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 21:20:08,670 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-11-22 21:20:08,671 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-22 21:20:08,704 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-22 21:20:08,729 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 41 places, 40 transitions, 94 flow [2024-11-22 21:20:08,754 INFO L124 PetriNetUnfolderBase]: 6/38 cut-off events. [2024-11-22 21:20:08,758 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-22 21:20:08,760 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47 conditions, 38 events. 6/38 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 64 event pairs, 0 based on Foata normal form. 0/29 useless extension candidates. Maximal degree in co-relation 33. Up to 2 conditions per place. [2024-11-22 21:20:08,761 INFO L82 GeneralOperation]: Start removeDead. Operand has 41 places, 40 transitions, 94 flow [2024-11-22 21:20:08,765 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 38 places, 37 transitions, 86 flow [2024-11-22 21:20:08,771 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 21:20:08,776 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;@6cf3a491, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 21:20:08,776 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-11-22 21:20:08,784 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-22 21:20:08,784 INFO L124 PetriNetUnfolderBase]: 4/25 cut-off events. [2024-11-22 21:20:08,784 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-22 21:20:08,784 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:20:08,785 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:20:08,785 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONMEMORY_LEAK === [thr2Err0ASSERT_VIOLATIONMEMORY_LEAK, thr1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-22 21:20:08,789 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:20:08,790 INFO L85 PathProgramCache]: Analyzing trace with hash 761548644, now seen corresponding path program 1 times [2024-11-22 21:20:08,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 21:20:08,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824490120] [2024-11-22 21:20:08,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:20:08,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 21:20:08,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:20:08,996 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 21:20:08,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 21:20:08,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824490120] [2024-11-22 21:20:08,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1824490120] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:20:08,997 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:20:08,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 21:20:08,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987706443] [2024-11-22 21:20:09,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:20:09,007 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 21:20:09,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 21:20:09,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 21:20:09,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 21:20:09,045 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 40 [2024-11-22 21:20:09,047 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 37 transitions, 86 flow. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:20:09,047 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:20:09,047 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 40 [2024-11-22 21:20:09,048 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:20:09,152 INFO L124 PetriNetUnfolderBase]: 62/197 cut-off events. [2024-11-22 21:20:09,153 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-11-22 21:20:09,154 INFO L83 FinitePrefix]: Finished finitePrefix Result has 350 conditions, 197 events. 62/197 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 976 event pairs, 20 based on Foata normal form. 56/232 useless extension candidates. Maximal degree in co-relation 288. Up to 72 conditions per place. [2024-11-22 21:20:09,156 INFO L140 encePairwiseOnDemand]: 31/40 looper letters, 18 selfloop transitions, 3 changer transitions 0/38 dead transitions. [2024-11-22 21:20:09,156 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 38 transitions, 136 flow [2024-11-22 21:20:09,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 21:20:09,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 21:20:09,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 92 transitions. [2024-11-22 21:20:09,164 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7666666666666667 [2024-11-22 21:20:09,165 INFO L175 Difference]: Start difference. First operand has 38 places, 37 transitions, 86 flow. Second operand 3 states and 92 transitions. [2024-11-22 21:20:09,166 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 38 transitions, 136 flow [2024-11-22 21:20:09,168 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 38 transitions, 124 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-22 21:20:09,169 INFO L231 Difference]: Finished difference. Result has 36 places, 32 transitions, 86 flow [2024-11-22 21:20:09,171 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=86, PETRI_PLACES=36, PETRI_TRANSITIONS=32} [2024-11-22 21:20:09,173 INFO L277 CegarLoopForPetriNet]: 38 programPoint places, -2 predicate places. [2024-11-22 21:20:09,173 INFO L471 AbstractCegarLoop]: Abstraction has has 36 places, 32 transitions, 86 flow [2024-11-22 21:20:09,174 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:20:09,174 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:20:09,174 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:20:09,174 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 21:20:09,174 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr2Err0ASSERT_VIOLATIONMEMORY_LEAK === [thr2Err0ASSERT_VIOLATIONMEMORY_LEAK, thr1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-22 21:20:09,174 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:20:09,175 INFO L85 PathProgramCache]: Analyzing trace with hash -841856381, now seen corresponding path program 1 times [2024-11-22 21:20:09,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 21:20:09,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346860395] [2024-11-22 21:20:09,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:20:09,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 21:20:09,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:20:09,235 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 21:20:09,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 21:20:09,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346860395] [2024-11-22 21:20:09,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [346860395] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:20:09,236 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:20:09,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 21:20:09,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125998357] [2024-11-22 21:20:09,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:20:09,237 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 21:20:09,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 21:20:09,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 21:20:09,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 21:20:09,241 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 40 [2024-11-22 21:20:09,241 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 32 transitions, 86 flow. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:20:09,241 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:20:09,241 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 40 [2024-11-22 21:20:09,241 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:20:09,304 INFO L124 PetriNetUnfolderBase]: 57/196 cut-off events. [2024-11-22 21:20:09,304 INFO L125 PetriNetUnfolderBase]: For 50/50 co-relation queries the response was YES. [2024-11-22 21:20:09,305 INFO L83 FinitePrefix]: Finished finitePrefix Result has 382 conditions, 196 events. 57/196 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 959 event pairs, 30 based on Foata normal form. 15/205 useless extension candidates. Maximal degree in co-relation 77. Up to 81 conditions per place. [2024-11-22 21:20:09,306 INFO L140 encePairwiseOnDemand]: 36/40 looper letters, 18 selfloop transitions, 2 changer transitions 0/37 dead transitions. [2024-11-22 21:20:09,306 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 37 transitions, 138 flow [2024-11-22 21:20:09,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 21:20:09,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 21:20:09,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 85 transitions. [2024-11-22 21:20:09,310 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7083333333333334 [2024-11-22 21:20:09,310 INFO L175 Difference]: Start difference. First operand has 36 places, 32 transitions, 86 flow. Second operand 3 states and 85 transitions. [2024-11-22 21:20:09,310 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 37 transitions, 138 flow [2024-11-22 21:20:09,311 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 37 transitions, 132 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 21:20:09,312 INFO L231 Difference]: Finished difference. Result has 37 places, 32 transitions, 90 flow [2024-11-22 21:20:09,312 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=90, PETRI_PLACES=37, PETRI_TRANSITIONS=32} [2024-11-22 21:20:09,313 INFO L277 CegarLoopForPetriNet]: 38 programPoint places, -1 predicate places. [2024-11-22 21:20:09,313 INFO L471 AbstractCegarLoop]: Abstraction has has 37 places, 32 transitions, 90 flow [2024-11-22 21:20:09,313 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:20:09,313 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:20:09,313 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:20:09,314 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 21:20:09,314 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONMEMORY_LEAK === [thr2Err0ASSERT_VIOLATIONMEMORY_LEAK, thr1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-22 21:20:09,315 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:20:09,315 INFO L85 PathProgramCache]: Analyzing trace with hash 1208377902, now seen corresponding path program 1 times [2024-11-22 21:20:09,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 21:20:09,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303632641] [2024-11-22 21:20:09,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:20:09,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 21:20:09,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:20:09,398 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 21:20:09,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 21:20:09,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303632641] [2024-11-22 21:20:09,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303632641] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:20:09,400 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:20:09,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 21:20:09,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175585499] [2024-11-22 21:20:09,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:20:09,400 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 21:20:09,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 21:20:09,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 21:20:09,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-22 21:20:09,414 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 40 [2024-11-22 21:20:09,416 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 32 transitions, 90 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) [2024-11-22 21:20:09,416 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:20:09,416 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 40 [2024-11-22 21:20:09,416 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:20:09,491 INFO L124 PetriNetUnfolderBase]: 138/315 cut-off events. [2024-11-22 21:20:09,491 INFO L125 PetriNetUnfolderBase]: For 141/141 co-relation queries the response was YES. [2024-11-22 21:20:09,492 INFO L83 FinitePrefix]: Finished finitePrefix Result has 677 conditions, 315 events. 138/315 cut-off events. For 141/141 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1440 event pairs, 45 based on Foata normal form. 15/321 useless extension candidates. Maximal degree in co-relation 273. Up to 108 conditions per place. [2024-11-22 21:20:09,494 INFO L140 encePairwiseOnDemand]: 33/40 looper letters, 27 selfloop transitions, 7 changer transitions 2/48 dead transitions. [2024-11-22 21:20:09,494 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 48 transitions, 205 flow [2024-11-22 21:20:09,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 21:20:09,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-22 21:20:09,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 101 transitions. [2024-11-22 21:20:09,495 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.63125 [2024-11-22 21:20:09,495 INFO L175 Difference]: Start difference. First operand has 37 places, 32 transitions, 90 flow. Second operand 4 states and 101 transitions. [2024-11-22 21:20:09,495 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 48 transitions, 205 flow [2024-11-22 21:20:09,497 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 48 transitions, 202 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-22 21:20:09,498 INFO L231 Difference]: Finished difference. Result has 42 places, 38 transitions, 140 flow [2024-11-22 21:20:09,498 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=140, PETRI_PLACES=42, PETRI_TRANSITIONS=38} [2024-11-22 21:20:09,498 INFO L277 CegarLoopForPetriNet]: 38 programPoint places, 4 predicate places. [2024-11-22 21:20:09,499 INFO L471 AbstractCegarLoop]: Abstraction has has 42 places, 38 transitions, 140 flow [2024-11-22 21:20:09,499 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) [2024-11-22 21:20:09,499 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:20:09,499 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:20:09,499 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 21:20:09,499 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err0ASSERT_VIOLATIONMEMORY_LEAK === [thr2Err0ASSERT_VIOLATIONMEMORY_LEAK, thr1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-22 21:20:09,500 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:20:09,500 INFO L85 PathProgramCache]: Analyzing trace with hash 522877652, now seen corresponding path program 2 times [2024-11-22 21:20:09,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 21:20:09,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044329291] [2024-11-22 21:20:09,500 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 21:20:09,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 21:20:09,511 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-22 21:20:09,511 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 21:20:09,543 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 21:20:09,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 21:20:09,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044329291] [2024-11-22 21:20:09,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2044329291] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:20:09,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:20:09,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 21:20:09,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272363051] [2024-11-22 21:20:09,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:20:09,544 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 21:20:09,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 21:20:09,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 21:20:09,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-22 21:20:09,555 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 40 [2024-11-22 21:20:09,556 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 38 transitions, 140 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) [2024-11-22 21:20:09,556 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:20:09,556 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 40 [2024-11-22 21:20:09,556 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:20:09,612 INFO L124 PetriNetUnfolderBase]: 120/248 cut-off events. [2024-11-22 21:20:09,612 INFO L125 PetriNetUnfolderBase]: For 140/152 co-relation queries the response was YES. [2024-11-22 21:20:09,613 INFO L83 FinitePrefix]: Finished finitePrefix Result has 655 conditions, 248 events. 120/248 cut-off events. For 140/152 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 873 event pairs, 37 based on Foata normal form. 18/261 useless extension candidates. Maximal degree in co-relation 262. Up to 85 conditions per place. [2024-11-22 21:20:09,618 INFO L140 encePairwiseOnDemand]: 33/40 looper letters, 28 selfloop transitions, 8 changer transitions 1/47 dead transitions. [2024-11-22 21:20:09,618 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 47 transitions, 248 flow [2024-11-22 21:20:09,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 21:20:09,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-22 21:20:09,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 98 transitions. [2024-11-22 21:20:09,619 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6125 [2024-11-22 21:20:09,619 INFO L175 Difference]: Start difference. First operand has 42 places, 38 transitions, 140 flow. Second operand 4 states and 98 transitions. [2024-11-22 21:20:09,620 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 47 transitions, 248 flow [2024-11-22 21:20:09,621 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 47 transitions, 242 flow, removed 3 selfloop flow, removed 0 redundant places. [2024-11-22 21:20:09,621 INFO L231 Difference]: Finished difference. Result has 42 places, 38 transitions, 186 flow [2024-11-22 21:20:09,622 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=118, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=186, PETRI_PLACES=42, PETRI_TRANSITIONS=38} [2024-11-22 21:20:09,624 INFO L277 CegarLoopForPetriNet]: 38 programPoint places, 4 predicate places. [2024-11-22 21:20:09,624 INFO L471 AbstractCegarLoop]: Abstraction has has 42 places, 38 transitions, 186 flow [2024-11-22 21:20:09,624 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) [2024-11-22 21:20:09,624 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:20:09,625 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] [2024-11-22 21:20:09,626 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 21:20:09,626 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [thr2Err0ASSERT_VIOLATIONMEMORY_LEAK, thr1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-22 21:20:09,627 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:20:09,627 INFO L85 PathProgramCache]: Analyzing trace with hash 1278601592, now seen corresponding path program 1 times [2024-11-22 21:20:09,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 21:20:09,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615194522] [2024-11-22 21:20:09,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:20:09,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 21:20:09,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:20:09,676 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 21:20:09,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 21:20:09,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615194522] [2024-11-22 21:20:09,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [615194522] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:20:09,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:20:09,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-22 21:20:09,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525981077] [2024-11-22 21:20:09,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:20:09,677 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 21:20:09,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 21:20:09,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 21:20:09,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 21:20:09,678 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 40 [2024-11-22 21:20:09,678 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 38 transitions, 186 flow. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 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) [2024-11-22 21:20:09,678 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:20:09,678 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 40 [2024-11-22 21:20:09,678 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:20:09,700 INFO L124 PetriNetUnfolderBase]: 53/136 cut-off events. [2024-11-22 21:20:09,701 INFO L125 PetriNetUnfolderBase]: For 151/155 co-relation queries the response was YES. [2024-11-22 21:20:09,701 INFO L83 FinitePrefix]: Finished finitePrefix Result has 372 conditions, 136 events. 53/136 cut-off events. For 151/155 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 486 event pairs, 33 based on Foata normal form. 2/117 useless extension candidates. Maximal degree in co-relation 183. Up to 78 conditions per place. [2024-11-22 21:20:09,701 INFO L140 encePairwiseOnDemand]: 38/40 looper letters, 0 selfloop transitions, 0 changer transitions 37/37 dead transitions. [2024-11-22 21:20:09,701 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 37 transitions, 208 flow [2024-11-22 21:20:09,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 21:20:09,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 21:20:09,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 75 transitions. [2024-11-22 21:20:09,705 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.625 [2024-11-22 21:20:09,705 INFO L175 Difference]: Start difference. First operand has 42 places, 38 transitions, 186 flow. Second operand 3 states and 75 transitions. [2024-11-22 21:20:09,705 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 37 transitions, 208 flow [2024-11-22 21:20:09,707 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 37 transitions, 201 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-11-22 21:20:09,707 INFO L231 Difference]: Finished difference. Result has 41 places, 0 transitions, 0 flow [2024-11-22 21:20:09,707 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=177, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=41, PETRI_TRANSITIONS=0} [2024-11-22 21:20:09,708 INFO L277 CegarLoopForPetriNet]: 38 programPoint places, 3 predicate places. [2024-11-22 21:20:09,709 INFO L471 AbstractCegarLoop]: Abstraction has has 41 places, 0 transitions, 0 flow [2024-11-22 21:20:09,709 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 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) [2024-11-22 21:20:09,711 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr2Err0ASSERT_VIOLATIONMEMORY_LEAK (6 of 7 remaining) [2024-11-22 21:20:09,711 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONMEMORY_LEAK (5 of 7 remaining) [2024-11-22 21:20:09,712 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (4 of 7 remaining) [2024-11-22 21:20:09,712 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 7 remaining) [2024-11-22 21:20:09,712 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 7 remaining) [2024-11-22 21:20:09,712 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr2Err0ASSERT_VIOLATIONMEMORY_LEAK (1 of 7 remaining) [2024-11-22 21:20:09,725 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 7 remaining) [2024-11-22 21:20:09,725 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 21:20:09,726 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1] [2024-11-22 21:20:09,735 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-22 21:20:09,735 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-22 21:20:09,743 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 09:20:09 BasicIcfg [2024-11-22 21:20:09,743 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-22 21:20:09,744 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-22 21:20:09,744 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-22 21:20:09,744 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-22 21:20:09,744 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:20:08" (3/4) ... [2024-11-22 21:20:09,746 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-22 21:20:09,748 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thr2 [2024-11-22 21:20:09,748 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thr1 [2024-11-22 21:20:09,752 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 30 nodes and edges [2024-11-22 21:20:09,752 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-11-22 21:20:09,752 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-22 21:20:09,752 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-22 21:20:09,829 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-22 21:20:09,830 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-22 21:20:09,830 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-22 21:20:09,831 INFO L158 Benchmark]: Toolchain (without parser) took 2000.67ms. Allocated memory was 138.4MB in the beginning and 232.8MB in the end (delta: 94.4MB). Free memory was 65.4MB in the beginning and 197.1MB in the end (delta: -131.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-22 21:20:09,831 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 138.4MB. Free memory was 101.3MB in the beginning and 101.2MB in the end (delta: 160.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-22 21:20:09,832 INFO L158 Benchmark]: CACSL2BoogieTranslator took 404.37ms. Allocated memory was 138.4MB in the beginning and 192.9MB in the end (delta: 54.5MB). Free memory was 65.2MB in the beginning and 152.8MB in the end (delta: -87.6MB). Peak memory consumption was 20.3MB. Max. memory is 16.1GB. [2024-11-22 21:20:09,832 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.21ms. Allocated memory is still 192.9MB. Free memory was 152.8MB in the beginning and 150.9MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-22 21:20:09,832 INFO L158 Benchmark]: Boogie Preprocessor took 38.15ms. Allocated memory is still 192.9MB. Free memory was 150.9MB in the beginning and 148.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-22 21:20:09,833 INFO L158 Benchmark]: RCFGBuilder took 337.08ms. Allocated memory is still 192.9MB. Free memory was 148.8MB in the beginning and 132.0MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-22 21:20:09,833 INFO L158 Benchmark]: TraceAbstraction took 1092.37ms. Allocated memory is still 192.9MB. Free memory was 130.9MB in the beginning and 157.9MB in the end (delta: -27.0MB). Peak memory consumption was 52.8MB. Max. memory is 16.1GB. [2024-11-22 21:20:09,833 INFO L158 Benchmark]: Witness Printer took 86.60ms. Allocated memory was 192.9MB in the beginning and 232.8MB in the end (delta: 39.8MB). Free memory was 157.8MB in the beginning and 197.1MB in the end (delta: -39.3MB). Peak memory consumption was 4.6MB. Max. memory is 16.1GB. [2024-11-22 21:20:09,835 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 138.4MB. Free memory was 101.3MB in the beginning and 101.2MB in the end (delta: 160.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 404.37ms. Allocated memory was 138.4MB in the beginning and 192.9MB in the end (delta: 54.5MB). Free memory was 65.2MB in the beginning and 152.8MB in the end (delta: -87.6MB). Peak memory consumption was 20.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.21ms. Allocated memory is still 192.9MB. Free memory was 152.8MB in the beginning and 150.9MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.15ms. Allocated memory is still 192.9MB. Free memory was 150.9MB in the beginning and 148.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 337.08ms. Allocated memory is still 192.9MB. Free memory was 148.8MB in the beginning and 132.0MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1092.37ms. Allocated memory is still 192.9MB. Free memory was 130.9MB in the beginning and 157.9MB in the end (delta: -27.0MB). Peak memory consumption was 52.8MB. Max. memory is 16.1GB. * Witness Printer took 86.60ms. Allocated memory was 192.9MB in the beginning and 232.8MB in the end (delta: 39.8MB). Free memory was 157.8MB in the beginning and 197.1MB in the end (delta: -39.3MB). Peak memory consumption was 4.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 12]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 12]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 752]: 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, 61 locations, 7 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.0s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 62 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 42 mSDsluCounter, 20 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 190 IncrementalHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 14 mSDtfsCounter, 190 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=186occurred in iteration=4, InterpolantAutomatonStates: 17, 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, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 73 NumberOfCodeBlocks, 73 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 68 ConstructedInterpolants, 0 QuantifiedInterpolants, 148 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-22 21:20:09,851 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