./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/valid-memsafety.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-atomic/peterson.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-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-wip.dd.update-z3-fca748b-m [2024-11-20 17:16:32,240 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 17:16:32,292 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-20 17:16:32,297 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 17:16:32,299 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 17:16:32,322 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 17:16:32,323 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 17:16:32,323 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 17:16:32,324 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 17:16:32,327 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 17:16:32,327 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 17:16:32,327 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 17:16:32,328 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 17:16:32,328 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 17:16:32,328 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 17:16:32,329 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 17:16:32,329 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 17:16:32,330 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 17:16:32,330 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 17:16:32,330 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 17:16:32,330 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-20 17:16:32,331 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-20 17:16:32,331 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-20 17:16:32,331 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 17:16:32,331 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-20 17:16:32,331 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 17:16:32,331 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-20 17:16:32,332 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 17:16:32,332 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 17:16:32,332 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 17:16:32,332 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 17:16:32,332 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 17:16:32,332 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 17:16:32,333 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 17:16:32,333 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 17:16:32,333 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 17:16:32,333 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 17:16:32,333 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 17:16:32,334 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 17:16:32,334 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 17:16:32,334 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 17:16:32,336 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 17:16:32,336 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6ea11bc1281710e3131473f2a673d7d78c2a42824b03a7d695132107cc74f895 [2024-11-20 17:16:32,585 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 17:16:32,619 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 17:16:32,621 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 17:16:32,622 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 17:16:32,622 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 17:16:32,623 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-atomic/peterson.i [2024-11-20 17:16:33,913 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 17:16:34,085 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 17:16:34,085 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-atomic/peterson.i [2024-11-20 17:16:34,096 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00e3d4b0c/b3893a5f8bb74c1f91589e21a6932bb3/FLAG15e92f04a [2024-11-20 17:16:34,464 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00e3d4b0c/b3893a5f8bb74c1f91589e21a6932bb3 [2024-11-20 17:16:34,466 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 17:16:34,467 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 17:16:34,468 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 17:16:34,468 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 17:16:34,473 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 17:16:34,474 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:16:34" (1/1) ... [2024-11-20 17:16:34,474 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b9decc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:16:34, skipping insertion in model container [2024-11-20 17:16:34,474 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:16:34" (1/1) ... [2024-11-20 17:16:34,509 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 17:16:34,765 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 17:16:34,771 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 17:16:34,809 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 17:16:34,834 INFO L204 MainTranslator]: Completed translation [2024-11-20 17:16:34,834 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:16:34 WrapperNode [2024-11-20 17:16:34,834 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 17:16:34,835 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 17:16:34,835 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 17:16:34,835 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 17:16:34,841 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:16:34" (1/1) ... [2024-11-20 17:16:34,848 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:16:34" (1/1) ... [2024-11-20 17:16:34,865 INFO L138 Inliner]: procedures = 166, calls = 10, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 68 [2024-11-20 17:16:34,865 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 17:16:34,866 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 17:16:34,866 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 17:16:34,866 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 17:16:34,878 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:16:34" (1/1) ... [2024-11-20 17:16:34,878 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:16:34" (1/1) ... [2024-11-20 17:16:34,880 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:16:34" (1/1) ... [2024-11-20 17:16:34,892 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]. [2024-11-20 17:16:34,892 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:16:34" (1/1) ... [2024-11-20 17:16:34,892 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:16:34" (1/1) ... [2024-11-20 17:16:34,896 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:16:34" (1/1) ... [2024-11-20 17:16:34,898 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:16:34" (1/1) ... [2024-11-20 17:16:34,899 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:16:34" (1/1) ... [2024-11-20 17:16:34,900 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:16:34" (1/1) ... [2024-11-20 17:16:34,901 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 17:16:34,902 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 17:16:34,902 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 17:16:34,902 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 17:16:34,903 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:16:34" (1/1) ... [2024-11-20 17:16:34,912 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 17:16:34,921 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 17:16:34,939 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) [2024-11-20 17:16:34,942 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 [2024-11-20 17:16:35,004 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2024-11-20 17:16:35,005 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2024-11-20 17:16:35,005 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2024-11-20 17:16:35,005 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2024-11-20 17:16:35,006 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 17:16:35,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-20 17:16:35,006 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 17:16:35,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 17:16:35,008 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-20 17:16:35,153 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 17:16:35,155 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 17:16:35,270 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-20 17:16:35,271 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 17:16:35,319 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 17:16:35,320 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-20 17:16:35,320 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:16:35 BoogieIcfgContainer [2024-11-20 17:16:35,320 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 17:16:35,322 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 17:16:35,323 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 17:16:35,325 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 17:16:35,325 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 05:16:34" (1/3) ... [2024-11-20 17:16:35,326 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a8f909d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:16:35, skipping insertion in model container [2024-11-20 17:16:35,326 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:16:34" (2/3) ... [2024-11-20 17:16:35,326 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a8f909d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:16:35, skipping insertion in model container [2024-11-20 17:16:35,327 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:16:35" (3/3) ... [2024-11-20 17:16:35,327 INFO L112 eAbstractionObserver]: Analyzing ICFG peterson.i [2024-11-20 17:16:35,341 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 17:16:35,341 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-11-20 17:16:35,341 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-20 17:16:35,392 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-20 17:16:35,418 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 41 places, 40 transitions, 94 flow [2024-11-20 17:16:35,441 INFO L124 PetriNetUnfolderBase]: 6/38 cut-off events. [2024-11-20 17:16:35,441 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-20 17:16:35,444 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. [2024-11-20 17:16:35,444 INFO L82 GeneralOperation]: Start removeDead. Operand has 41 places, 40 transitions, 94 flow [2024-11-20 17:16:35,446 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 38 places, 37 transitions, 86 flow [2024-11-20 17:16:35,453 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 17:16:35,461 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;@6a2b265f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 17:16:35,461 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-11-20 17:16:35,467 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 17:16:35,467 INFO L124 PetriNetUnfolderBase]: 4/25 cut-off events. [2024-11-20 17:16:35,467 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-20 17:16:35,467 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:16:35,468 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:16:35,468 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)] === [2024-11-20 17:16:35,472 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:16:35,473 INFO L85 PathProgramCache]: Analyzing trace with hash 761548644, now seen corresponding path program 1 times [2024-11-20 17:16:35,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:16:35,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267569769] [2024-11-20 17:16:35,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:16:35,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:16:35,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:16:35,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:16:35,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:16:35,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267569769] [2024-11-20 17:16:35,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267569769] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:16:35,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:16:35,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 17:16:35,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268652786] [2024-11-20 17:16:35,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:16:35,694 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 17:16:35,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:16:35,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 17:16:35,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 17:16:35,722 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 40 [2024-11-20 17:16:35,724 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) [2024-11-20 17:16:35,725 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:16:35,725 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 40 [2024-11-20 17:16:35,726 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:16:35,803 INFO L124 PetriNetUnfolderBase]: 62/197 cut-off events. [2024-11-20 17:16:35,803 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-11-20 17:16:35,804 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. [2024-11-20 17:16:35,807 INFO L140 encePairwiseOnDemand]: 31/40 looper letters, 18 selfloop transitions, 3 changer transitions 0/38 dead transitions. [2024-11-20 17:16:35,809 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 38 transitions, 136 flow [2024-11-20 17:16:35,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 17:16:35,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 17:16:35,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 92 transitions. [2024-11-20 17:16:35,820 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7666666666666667 [2024-11-20 17:16:35,822 INFO L175 Difference]: Start difference. First operand has 38 places, 37 transitions, 86 flow. Second operand 3 states and 92 transitions. [2024-11-20 17:16:35,823 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 38 transitions, 136 flow [2024-11-20 17:16:35,826 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 38 transitions, 124 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-20 17:16:35,829 INFO L231 Difference]: Finished difference. Result has 36 places, 32 transitions, 86 flow [2024-11-20 17:16:35,830 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} [2024-11-20 17:16:35,835 INFO L277 CegarLoopForPetriNet]: 38 programPoint places, -2 predicate places. [2024-11-20 17:16:35,835 INFO L471 AbstractCegarLoop]: Abstraction has has 36 places, 32 transitions, 86 flow [2024-11-20 17:16:35,835 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) [2024-11-20 17:16:35,836 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:16:35,836 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:16:35,836 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 17:16:35,837 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)] === [2024-11-20 17:16:35,837 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:16:35,837 INFO L85 PathProgramCache]: Analyzing trace with hash -841856381, now seen corresponding path program 1 times [2024-11-20 17:16:35,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:16:35,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895421315] [2024-11-20 17:16:35,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:16:35,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:16:35,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:16:35,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:16:35,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:16:35,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895421315] [2024-11-20 17:16:35,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [895421315] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:16:35,903 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:16:35,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 17:16:35,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450981447] [2024-11-20 17:16:35,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:16:35,905 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 17:16:35,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:16:35,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 17:16:35,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 17:16:35,909 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 40 [2024-11-20 17:16:35,910 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) [2024-11-20 17:16:35,910 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:16:35,910 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 40 [2024-11-20 17:16:35,910 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:16:35,984 INFO L124 PetriNetUnfolderBase]: 57/196 cut-off events. [2024-11-20 17:16:35,984 INFO L125 PetriNetUnfolderBase]: For 50/50 co-relation queries the response was YES. [2024-11-20 17:16:35,986 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. [2024-11-20 17:16:35,988 INFO L140 encePairwiseOnDemand]: 36/40 looper letters, 18 selfloop transitions, 2 changer transitions 0/37 dead transitions. [2024-11-20 17:16:35,988 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 37 transitions, 138 flow [2024-11-20 17:16:35,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 17:16:35,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 17:16:35,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 85 transitions. [2024-11-20 17:16:35,990 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7083333333333334 [2024-11-20 17:16:35,991 INFO L175 Difference]: Start difference. First operand has 36 places, 32 transitions, 86 flow. Second operand 3 states and 85 transitions. [2024-11-20 17:16:35,991 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 37 transitions, 138 flow [2024-11-20 17:16:35,992 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 37 transitions, 132 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 17:16:35,993 INFO L231 Difference]: Finished difference. Result has 37 places, 32 transitions, 90 flow [2024-11-20 17:16:35,993 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} [2024-11-20 17:16:35,994 INFO L277 CegarLoopForPetriNet]: 38 programPoint places, -1 predicate places. [2024-11-20 17:16:35,994 INFO L471 AbstractCegarLoop]: Abstraction has has 37 places, 32 transitions, 90 flow [2024-11-20 17:16:35,994 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) [2024-11-20 17:16:35,994 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:16:35,994 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:16:35,994 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-20 17:16:35,995 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)] === [2024-11-20 17:16:35,996 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:16:35,997 INFO L85 PathProgramCache]: Analyzing trace with hash 1208377902, now seen corresponding path program 1 times [2024-11-20 17:16:35,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:16:35,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642028273] [2024-11-20 17:16:35,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:16:35,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:16:36,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:16:36,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:16:36,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:16:36,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642028273] [2024-11-20 17:16:36,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [642028273] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:16:36,083 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:16:36,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 17:16:36,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455147124] [2024-11-20 17:16:36,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:16:36,084 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 17:16:36,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:16:36,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 17:16:36,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-20 17:16:36,094 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 40 [2024-11-20 17:16:36,095 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) [2024-11-20 17:16:36,095 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:16:36,096 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 40 [2024-11-20 17:16:36,096 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:16:36,259 INFO L124 PetriNetUnfolderBase]: 138/315 cut-off events. [2024-11-20 17:16:36,259 INFO L125 PetriNetUnfolderBase]: For 141/141 co-relation queries the response was YES. [2024-11-20 17:16:36,260 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. [2024-11-20 17:16:36,265 INFO L140 encePairwiseOnDemand]: 33/40 looper letters, 27 selfloop transitions, 7 changer transitions 2/48 dead transitions. [2024-11-20 17:16:36,265 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 48 transitions, 205 flow [2024-11-20 17:16:36,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 17:16:36,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-20 17:16:36,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 101 transitions. [2024-11-20 17:16:36,268 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.63125 [2024-11-20 17:16:36,268 INFO L175 Difference]: Start difference. First operand has 37 places, 32 transitions, 90 flow. Second operand 4 states and 101 transitions. [2024-11-20 17:16:36,268 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 48 transitions, 205 flow [2024-11-20 17:16:36,269 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 48 transitions, 202 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 17:16:36,274 INFO L231 Difference]: Finished difference. Result has 42 places, 38 transitions, 140 flow [2024-11-20 17:16:36,274 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} [2024-11-20 17:16:36,275 INFO L277 CegarLoopForPetriNet]: 38 programPoint places, 4 predicate places. [2024-11-20 17:16:36,275 INFO L471 AbstractCegarLoop]: Abstraction has has 42 places, 38 transitions, 140 flow [2024-11-20 17:16:36,275 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) [2024-11-20 17:16:36,275 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:16:36,275 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:16:36,276 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-20 17:16:36,276 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)] === [2024-11-20 17:16:36,279 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:16:36,279 INFO L85 PathProgramCache]: Analyzing trace with hash 522877652, now seen corresponding path program 2 times [2024-11-20 17:16:36,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:16:36,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371926360] [2024-11-20 17:16:36,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:16:36,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:16:36,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:16:36,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:16:36,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:16:36,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371926360] [2024-11-20 17:16:36,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [371926360] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:16:36,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:16:36,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 17:16:36,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283474940] [2024-11-20 17:16:36,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:16:36,340 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 17:16:36,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:16:36,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 17:16:36,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-20 17:16:36,354 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 40 [2024-11-20 17:16:36,354 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) [2024-11-20 17:16:36,355 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:16:36,355 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 40 [2024-11-20 17:16:36,356 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:16:36,423 INFO L124 PetriNetUnfolderBase]: 120/248 cut-off events. [2024-11-20 17:16:36,423 INFO L125 PetriNetUnfolderBase]: For 140/152 co-relation queries the response was YES. [2024-11-20 17:16:36,425 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. [2024-11-20 17:16:36,428 INFO L140 encePairwiseOnDemand]: 33/40 looper letters, 28 selfloop transitions, 8 changer transitions 1/47 dead transitions. [2024-11-20 17:16:36,428 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 47 transitions, 248 flow [2024-11-20 17:16:36,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 17:16:36,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-20 17:16:36,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 98 transitions. [2024-11-20 17:16:36,431 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6125 [2024-11-20 17:16:36,431 INFO L175 Difference]: Start difference. First operand has 42 places, 38 transitions, 140 flow. Second operand 4 states and 98 transitions. [2024-11-20 17:16:36,431 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 47 transitions, 248 flow [2024-11-20 17:16:36,432 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 47 transitions, 242 flow, removed 3 selfloop flow, removed 0 redundant places. [2024-11-20 17:16:36,435 INFO L231 Difference]: Finished difference. Result has 42 places, 38 transitions, 186 flow [2024-11-20 17:16:36,435 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} [2024-11-20 17:16:36,436 INFO L277 CegarLoopForPetriNet]: 38 programPoint places, 4 predicate places. [2024-11-20 17:16:36,436 INFO L471 AbstractCegarLoop]: Abstraction has has 42 places, 38 transitions, 186 flow [2024-11-20 17:16:36,437 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) [2024-11-20 17:16:36,437 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:16:36,437 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] [2024-11-20 17:16:36,437 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-20 17:16:36,437 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)] === [2024-11-20 17:16:36,438 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:16:36,438 INFO L85 PathProgramCache]: Analyzing trace with hash 1278601592, now seen corresponding path program 1 times [2024-11-20 17:16:36,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:16:36,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295718353] [2024-11-20 17:16:36,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:16:36,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:16:36,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:16:36,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:16:36,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:16:36,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295718353] [2024-11-20 17:16:36,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [295718353] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:16:36,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:16:36,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-20 17:16:36,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473924749] [2024-11-20 17:16:36,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:16:36,500 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 17:16:36,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:16:36,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 17:16:36,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 17:16:36,501 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 40 [2024-11-20 17:16:36,501 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) [2024-11-20 17:16:36,501 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:16:36,502 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 40 [2024-11-20 17:16:36,502 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:16:36,530 INFO L124 PetriNetUnfolderBase]: 53/136 cut-off events. [2024-11-20 17:16:36,530 INFO L125 PetriNetUnfolderBase]: For 151/155 co-relation queries the response was YES. [2024-11-20 17:16:36,531 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. [2024-11-20 17:16:36,531 INFO L140 encePairwiseOnDemand]: 38/40 looper letters, 0 selfloop transitions, 0 changer transitions 37/37 dead transitions. [2024-11-20 17:16:36,531 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 37 transitions, 208 flow [2024-11-20 17:16:36,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 17:16:36,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 17:16:36,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 75 transitions. [2024-11-20 17:16:36,532 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.625 [2024-11-20 17:16:36,533 INFO L175 Difference]: Start difference. First operand has 42 places, 38 transitions, 186 flow. Second operand 3 states and 75 transitions. [2024-11-20 17:16:36,533 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 37 transitions, 208 flow [2024-11-20 17:16:36,536 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 37 transitions, 201 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-11-20 17:16:36,537 INFO L231 Difference]: Finished difference. Result has 41 places, 0 transitions, 0 flow [2024-11-20 17:16:36,537 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} [2024-11-20 17:16:36,538 INFO L277 CegarLoopForPetriNet]: 38 programPoint places, 3 predicate places. [2024-11-20 17:16:36,539 INFO L471 AbstractCegarLoop]: Abstraction has has 41 places, 0 transitions, 0 flow [2024-11-20 17:16:36,539 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) [2024-11-20 17:16:36,542 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr2Err0ASSERT_VIOLATIONMEMORY_LEAK (6 of 7 remaining) [2024-11-20 17:16:36,542 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONMEMORY_LEAK (5 of 7 remaining) [2024-11-20 17:16:36,542 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (4 of 7 remaining) [2024-11-20 17:16:36,542 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 7 remaining) [2024-11-20 17:16:36,542 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 7 remaining) [2024-11-20 17:16:36,543 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr2Err0ASSERT_VIOLATIONMEMORY_LEAK (1 of 7 remaining) [2024-11-20 17:16:36,543 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 7 remaining) [2024-11-20 17:16:36,543 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-20 17:16:36,543 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1] [2024-11-20 17:16:36,548 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-20 17:16:36,549 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-20 17:16:36,555 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 05:16:36 BasicIcfg [2024-11-20 17:16:36,555 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-20 17:16:36,557 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-20 17:16:36,557 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-20 17:16:36,557 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-20 17:16:36,558 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:16:35" (3/4) ... [2024-11-20 17:16:36,559 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-20 17:16:36,562 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thr2 [2024-11-20 17:16:36,562 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thr1 [2024-11-20 17:16:36,565 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 30 nodes and edges [2024-11-20 17:16:36,567 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-11-20 17:16:36,567 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-20 17:16:36,568 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-20 17:16:36,633 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-20 17:16:36,635 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-20 17:16:36,635 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-20 17:16:36,636 INFO L158 Benchmark]: Toolchain (without parser) took 2168.05ms. Allocated memory is still 146.8MB. Free memory was 99.0MB in the beginning and 68.9MB in the end (delta: 30.1MB). Peak memory consumption was 28.8MB. Max. memory is 16.1GB. [2024-11-20 17:16:36,636 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 100.7MB. Free memory is still 67.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-20 17:16:36,636 INFO L158 Benchmark]: CACSL2BoogieTranslator took 366.35ms. Allocated memory is still 146.8MB. Free memory was 99.0MB in the beginning and 77.0MB in the end (delta: 22.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-20 17:16:36,636 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.56ms. Allocated memory is still 146.8MB. Free memory was 77.0MB in the beginning and 75.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-20 17:16:36,637 INFO L158 Benchmark]: Boogie Preprocessor took 35.23ms. Allocated memory is still 146.8MB. Free memory was 75.0MB in the beginning and 72.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-20 17:16:36,637 INFO L158 Benchmark]: RCFGBuilder took 418.36ms. Allocated memory is still 146.8MB. Free memory was 72.9MB in the beginning and 104.1MB in the end (delta: -31.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-20 17:16:36,637 INFO L158 Benchmark]: TraceAbstraction took 1232.36ms. Allocated memory is still 146.8MB. Free memory was 103.6MB in the beginning and 73.1MB in the end (delta: 30.5MB). Peak memory consumption was 31.6MB. Max. memory is 16.1GB. [2024-11-20 17:16:36,637 INFO L158 Benchmark]: Witness Printer took 77.81ms. Allocated memory is still 146.8MB. Free memory was 73.1MB in the beginning and 68.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-20 17:16:36,640 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 100.7MB. Free memory is still 67.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 366.35ms. Allocated memory is still 146.8MB. Free memory was 99.0MB in the beginning and 77.0MB in the end (delta: 22.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.56ms. Allocated memory is still 146.8MB. Free memory was 77.0MB in the beginning and 75.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.23ms. Allocated memory is still 146.8MB. Free memory was 75.0MB in the beginning and 72.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 418.36ms. Allocated memory is still 146.8MB. Free memory was 72.9MB in the beginning and 104.1MB in the end (delta: -31.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * TraceAbstraction took 1232.36ms. Allocated memory is still 146.8MB. Free memory was 103.6MB in the beginning and 73.1MB in the end (delta: 30.5MB). Peak memory consumption was 31.6MB. Max. memory is 16.1GB. * Witness Printer took 77.81ms. Allocated memory is still 146.8MB. Free memory was 73.1MB in the beginning and 68.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 12]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 12]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 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: 1.1s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, 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, 0.2s 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, 0.1s 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! [2024-11-20 17:16:36,662 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