./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/pthread-wmm/safe036.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 8be7027f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/pthread-wmm/safe036.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 1118c32f43b2d6844c8e6b0e5b4fae8199d058f7b991e3c8d975cf675dc5221a --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-12 16:13:25,885 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-12 16:13:25,955 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-12 16:13:25,959 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-12 16:13:25,961 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-12 16:13:25,991 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-12 16:13:25,992 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-12 16:13:25,992 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-12 16:13:25,993 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-12 16:13:25,996 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-12 16:13:25,996 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-12 16:13:25,997 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-12 16:13:25,997 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-12 16:13:25,998 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-12 16:13:25,999 INFO L153 SettingsManager]: * Use SBE=true [2024-11-12 16:13:25,999 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-12 16:13:26,000 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-12 16:13:26,000 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-12 16:13:26,000 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-12 16:13:26,000 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-12 16:13:26,001 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-12 16:13:26,001 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-12 16:13:26,002 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-12 16:13:26,002 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-12 16:13:26,002 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-12 16:13:26,002 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-12 16:13:26,003 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-12 16:13:26,003 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-12 16:13:26,003 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-12 16:13:26,003 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-12 16:13:26,004 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-12 16:13:26,004 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-12 16:13:26,005 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-12 16:13:26,005 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 16:13:26,005 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-12 16:13:26,006 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-12 16:13:26,006 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-12 16:13:26,006 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-12 16:13:26,007 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-12 16:13:26,007 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-12 16:13:26,007 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-12 16:13:26,007 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-12 16:13:26,008 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1118c32f43b2d6844c8e6b0e5b4fae8199d058f7b991e3c8d975cf675dc5221a [2024-11-12 16:13:26,258 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-12 16:13:26,277 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-12 16:13:26,283 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-12 16:13:26,284 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-12 16:13:26,285 INFO L274 PluginConnector]: CDTParser initialized [2024-11-12 16:13:26,286 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe036.i [2024-11-12 16:13:27,784 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-12 16:13:28,001 INFO L384 CDTParser]: Found 1 translation units. [2024-11-12 16:13:28,001 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe036.i [2024-11-12 16:13:28,020 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/59eeda854/477aba0965e941b3b1fadf99a48b5e01/FLAGa307149cc [2024-11-12 16:13:28,350 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/59eeda854/477aba0965e941b3b1fadf99a48b5e01 [2024-11-12 16:13:28,352 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-12 16:13:28,353 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-12 16:13:28,354 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-12 16:13:28,355 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-12 16:13:28,360 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-12 16:13:28,361 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 04:13:28" (1/1) ... [2024-11-12 16:13:28,362 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b75abfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:13:28, skipping insertion in model container [2024-11-12 16:13:28,362 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 04:13:28" (1/1) ... [2024-11-12 16:13:28,402 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-12 16:13:28,792 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 16:13:28,805 INFO L200 MainTranslator]: Completed pre-run [2024-11-12 16:13:28,852 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 16:13:28,890 INFO L204 MainTranslator]: Completed translation [2024-11-12 16:13:28,891 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:13:28 WrapperNode [2024-11-12 16:13:28,891 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-12 16:13:28,892 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-12 16:13:28,892 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-12 16:13:28,893 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-12 16:13:28,900 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:13:28" (1/1) ... [2024-11-12 16:13:28,916 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:13:28" (1/1) ... [2024-11-12 16:13:28,941 INFO L138 Inliner]: procedures = 174, calls = 37, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 52 [2024-11-12 16:13:28,942 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-12 16:13:28,943 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-12 16:13:28,944 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-12 16:13:28,944 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-12 16:13:28,973 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:13:28" (1/1) ... [2024-11-12 16:13:28,973 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:13:28" (1/1) ... [2024-11-12 16:13:28,975 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:13:28" (1/1) ... [2024-11-12 16:13:28,997 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-12 16:13:28,998 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:13:28" (1/1) ... [2024-11-12 16:13:28,998 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:13:28" (1/1) ... [2024-11-12 16:13:29,001 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:13:28" (1/1) ... [2024-11-12 16:13:29,007 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:13:28" (1/1) ... [2024-11-12 16:13:29,010 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:13:28" (1/1) ... [2024-11-12 16:13:29,014 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:13:28" (1/1) ... [2024-11-12 16:13:29,016 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-12 16:13:29,017 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-12 16:13:29,017 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-12 16:13:29,017 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-12 16:13:29,022 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:13:28" (1/1) ... [2024-11-12 16:13:29,028 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 16:13:29,039 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 16:13:29,057 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-12 16:13:29,065 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-12 16:13:29,111 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-12 16:13:29,112 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-12 16:13:29,112 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-12 16:13:29,112 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-12 16:13:29,112 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-12 16:13:29,112 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-12 16:13:29,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-12 16:13:29,113 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-12 16:13:29,113 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-12 16:13:29,113 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-12 16:13:29,115 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-12 16:13:29,240 INFO L238 CfgBuilder]: Building ICFG [2024-11-12 16:13:29,242 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-12 16:13:29,371 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-12 16:13:29,371 INFO L287 CfgBuilder]: Performing block encoding [2024-11-12 16:13:29,448 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-12 16:13:29,448 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-12 16:13:29,449 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 04:13:29 BoogieIcfgContainer [2024-11-12 16:13:29,449 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-12 16:13:29,451 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-12 16:13:29,451 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-12 16:13:29,454 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-12 16:13:29,455 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 04:13:28" (1/3) ... [2024-11-12 16:13:29,455 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ccd1f38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 04:13:29, skipping insertion in model container [2024-11-12 16:13:29,456 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:13:28" (2/3) ... [2024-11-12 16:13:29,456 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ccd1f38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 04:13:29, skipping insertion in model container [2024-11-12 16:13:29,456 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 04:13:29" (3/3) ... [2024-11-12 16:13:29,458 INFO L112 eAbstractionObserver]: Analyzing ICFG safe036.i [2024-11-12 16:13:29,477 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-12 16:13:29,477 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-12 16:13:29,477 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-12 16:13:29,525 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-12 16:13:29,568 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 41 places, 36 transitions, 80 flow [2024-11-12 16:13:29,601 INFO L124 PetriNetUnfolderBase]: 2/34 cut-off events. [2024-11-12 16:13:29,605 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 16:13:29,608 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41 conditions, 34 events. 2/34 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 53 event pairs, 0 based on Foata normal form. 0/30 useless extension candidates. Maximal degree in co-relation 34. Up to 2 conditions per place. [2024-11-12 16:13:29,612 INFO L82 GeneralOperation]: Start removeDead. Operand has 41 places, 36 transitions, 80 flow [2024-11-12 16:13:29,615 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 38 places, 33 transitions, 72 flow [2024-11-12 16:13:29,630 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 16:13:29,639 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;@4177500f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 16:13:29,643 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-12 16:13:29,659 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-12 16:13:29,663 INFO L124 PetriNetUnfolderBase]: 2/31 cut-off events. [2024-11-12 16:13:29,663 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 16:13:29,664 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:13:29,664 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 16:13:29,665 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-12 16:13:29,673 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:13:29,674 INFO L85 PathProgramCache]: Analyzing trace with hash 117915707, now seen corresponding path program 1 times [2024-11-12 16:13:29,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:13:29,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766448666] [2024-11-12 16:13:29,683 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:13:29,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:13:29,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:13:29,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 16:13:29,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:13:29,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766448666] [2024-11-12 16:13:29,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1766448666] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:13:29,958 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 16:13:29,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-12 16:13:29,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93681701] [2024-11-12 16:13:29,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:13:29,969 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 16:13:29,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:13:29,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 16:13:30,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 16:13:30,009 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 36 [2024-11-12 16:13:30,013 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 33 transitions, 72 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) [2024-11-12 16:13:30,013 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:13:30,014 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 36 [2024-11-12 16:13:30,015 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 16:13:30,070 INFO L124 PetriNetUnfolderBase]: 23/94 cut-off events. [2024-11-12 16:13:30,072 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 16:13:30,074 INFO L83 FinitePrefix]: Finished finitePrefix Result has 156 conditions, 94 events. 23/94 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 386 event pairs, 23 based on Foata normal form. 12/98 useless extension candidates. Maximal degree in co-relation 146. Up to 52 conditions per place. [2024-11-12 16:13:30,076 INFO L140 encePairwiseOnDemand]: 32/36 looper letters, 9 selfloop transitions, 1 changer transitions 1/29 dead transitions. [2024-11-12 16:13:30,076 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 29 transitions, 86 flow [2024-11-12 16:13:30,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 16:13:30,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 16:13:30,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 74 transitions. [2024-11-12 16:13:30,085 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6851851851851852 [2024-11-12 16:13:30,086 INFO L175 Difference]: Start difference. First operand has 38 places, 33 transitions, 72 flow. Second operand 3 states and 74 transitions. [2024-11-12 16:13:30,087 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 29 transitions, 86 flow [2024-11-12 16:13:30,089 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 29 transitions, 84 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-12 16:13:30,091 INFO L231 Difference]: Finished difference. Result has 36 places, 28 transitions, 62 flow [2024-11-12 16:13:30,092 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=36, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=62, PETRI_PLACES=36, PETRI_TRANSITIONS=28} [2024-11-12 16:13:30,096 INFO L279 CegarLoopForPetriNet]: 38 programPoint places, -2 predicate places. [2024-11-12 16:13:30,096 INFO L471 AbstractCegarLoop]: Abstraction has has 36 places, 28 transitions, 62 flow [2024-11-12 16:13:30,096 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) [2024-11-12 16:13:30,096 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:13:30,097 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 16:13:30,097 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-12 16:13:30,097 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-12 16:13:30,099 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:13:30,099 INFO L85 PathProgramCache]: Analyzing trace with hash 117917233, now seen corresponding path program 1 times [2024-11-12 16:13:30,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:13:30,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453596901] [2024-11-12 16:13:30,100 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:13:30,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:13:30,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:13:30,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 16:13:30,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:13:30,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453596901] [2024-11-12 16:13:30,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [453596901] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:13:30,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 16:13:30,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 16:13:30,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808427735] [2024-11-12 16:13:30,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:13:30,377 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 16:13:30,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:13:30,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 16:13:30,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 16:13:30,382 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 36 [2024-11-12 16:13:30,383 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 28 transitions, 62 flow. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:13:30,384 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:13:30,384 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 36 [2024-11-12 16:13:30,384 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 16:13:30,502 INFO L124 PetriNetUnfolderBase]: 64/180 cut-off events. [2024-11-12 16:13:30,503 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 16:13:30,504 INFO L83 FinitePrefix]: Finished finitePrefix Result has 322 conditions, 180 events. 64/180 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 758 event pairs, 6 based on Foata normal form. 9/183 useless extension candidates. Maximal degree in co-relation 316. Up to 73 conditions per place. [2024-11-12 16:13:30,505 INFO L140 encePairwiseOnDemand]: 31/36 looper letters, 18 selfloop transitions, 4 changer transitions 1/38 dead transitions. [2024-11-12 16:13:30,506 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 38 transitions, 130 flow [2024-11-12 16:13:30,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-12 16:13:30,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-12 16:13:30,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 97 transitions. [2024-11-12 16:13:30,510 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6736111111111112 [2024-11-12 16:13:30,510 INFO L175 Difference]: Start difference. First operand has 36 places, 28 transitions, 62 flow. Second operand 4 states and 97 transitions. [2024-11-12 16:13:30,510 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 38 transitions, 130 flow [2024-11-12 16:13:30,511 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 38 transitions, 129 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-12 16:13:30,513 INFO L231 Difference]: Finished difference. Result has 39 places, 30 transitions, 87 flow [2024-11-12 16:13:30,514 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=36, PETRI_DIFFERENCE_MINUEND_FLOW=61, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=87, PETRI_PLACES=39, PETRI_TRANSITIONS=30} [2024-11-12 16:13:30,514 INFO L279 CegarLoopForPetriNet]: 38 programPoint places, 1 predicate places. [2024-11-12 16:13:30,515 INFO L471 AbstractCegarLoop]: Abstraction has has 39 places, 30 transitions, 87 flow [2024-11-12 16:13:30,515 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:13:30,515 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:13:30,516 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 16:13:30,516 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-12 16:13:30,517 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-12 16:13:30,518 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:13:30,519 INFO L85 PathProgramCache]: Analyzing trace with hash -2044050892, now seen corresponding path program 1 times [2024-11-12 16:13:30,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:13:30,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917357155] [2024-11-12 16:13:30,520 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:13:30,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:13:30,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:13:30,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 16:13:30,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:13:30,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917357155] [2024-11-12 16:13:30,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917357155] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:13:30,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 16:13:30,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 16:13:30,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498276607] [2024-11-12 16:13:30,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:13:30,699 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 16:13:30,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:13:30,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 16:13:30,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-12 16:13:30,704 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 36 [2024-11-12 16:13:30,705 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 30 transitions, 87 flow. Second operand has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:13:30,705 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:13:30,705 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 36 [2024-11-12 16:13:30,705 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 16:13:30,817 INFO L124 PetriNetUnfolderBase]: 42/121 cut-off events. [2024-11-12 16:13:30,818 INFO L125 PetriNetUnfolderBase]: For 40/40 co-relation queries the response was YES. [2024-11-12 16:13:30,819 INFO L83 FinitePrefix]: Finished finitePrefix Result has 275 conditions, 121 events. 42/121 cut-off events. For 40/40 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 330 event pairs, 2 based on Foata normal form. 8/125 useless extension candidates. Maximal degree in co-relation 266. Up to 33 conditions per place. [2024-11-12 16:13:30,820 INFO L140 encePairwiseOnDemand]: 31/36 looper letters, 17 selfloop transitions, 6 changer transitions 1/39 dead transitions. [2024-11-12 16:13:30,820 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 39 transitions, 158 flow [2024-11-12 16:13:30,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-12 16:13:30,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-12 16:13:30,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 116 transitions. [2024-11-12 16:13:30,824 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6444444444444445 [2024-11-12 16:13:30,824 INFO L175 Difference]: Start difference. First operand has 39 places, 30 transitions, 87 flow. Second operand 5 states and 116 transitions. [2024-11-12 16:13:30,824 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 39 transitions, 158 flow [2024-11-12 16:13:30,826 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 39 transitions, 149 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-11-12 16:13:30,828 INFO L231 Difference]: Finished difference. Result has 43 places, 30 transitions, 103 flow [2024-11-12 16:13:30,828 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=36, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=103, PETRI_PLACES=43, PETRI_TRANSITIONS=30} [2024-11-12 16:13:30,829 INFO L279 CegarLoopForPetriNet]: 38 programPoint places, 5 predicate places. [2024-11-12 16:13:30,829 INFO L471 AbstractCegarLoop]: Abstraction has has 43 places, 30 transitions, 103 flow [2024-11-12 16:13:30,831 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:13:30,831 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:13:30,831 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 16:13:30,831 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-12 16:13:30,832 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-12 16:13:30,832 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:13:30,833 INFO L85 PathProgramCache]: Analyzing trace with hash -1686754665, now seen corresponding path program 1 times [2024-11-12 16:13:30,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:13:30,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226160716] [2024-11-12 16:13:30,833 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:13:30,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:13:30,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:13:31,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 16:13:31,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:13:31,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226160716] [2024-11-12 16:13:31,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1226160716] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:13:31,038 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 16:13:31,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-12 16:13:31,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808690762] [2024-11-12 16:13:31,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:13:31,038 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 16:13:31,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:13:31,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 16:13:31,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-12 16:13:31,055 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 36 [2024-11-12 16:13:31,056 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 30 transitions, 103 flow. Second operand has 6 states, 6 states have (on average 19.0) internal successors, (114), 6 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:13:31,056 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:13:31,056 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 36 [2024-11-12 16:13:31,056 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 16:13:31,230 INFO L124 PetriNetUnfolderBase]: 73/216 cut-off events. [2024-11-12 16:13:31,231 INFO L125 PetriNetUnfolderBase]: For 91/91 co-relation queries the response was YES. [2024-11-12 16:13:31,233 INFO L83 FinitePrefix]: Finished finitePrefix Result has 478 conditions, 216 events. 73/216 cut-off events. For 91/91 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 857 event pairs, 22 based on Foata normal form. 4/207 useless extension candidates. Maximal degree in co-relation 467. Up to 84 conditions per place. [2024-11-12 16:13:31,235 INFO L140 encePairwiseOnDemand]: 30/36 looper letters, 19 selfloop transitions, 3 changer transitions 8/46 dead transitions. [2024-11-12 16:13:31,235 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 46 transitions, 203 flow [2024-11-12 16:13:31,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 16:13:31,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-12 16:13:31,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 133 transitions. [2024-11-12 16:13:31,237 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6157407407407407 [2024-11-12 16:13:31,238 INFO L175 Difference]: Start difference. First operand has 43 places, 30 transitions, 103 flow. Second operand 6 states and 133 transitions. [2024-11-12 16:13:31,238 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 46 transitions, 203 flow [2024-11-12 16:13:31,241 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 46 transitions, 169 flow, removed 8 selfloop flow, removed 6 redundant places. [2024-11-12 16:13:31,242 INFO L231 Difference]: Finished difference. Result has 46 places, 32 transitions, 100 flow [2024-11-12 16:13:31,243 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=36, PETRI_DIFFERENCE_MINUEND_FLOW=75, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=100, PETRI_PLACES=46, PETRI_TRANSITIONS=32} [2024-11-12 16:13:31,245 INFO L279 CegarLoopForPetriNet]: 38 programPoint places, 8 predicate places. [2024-11-12 16:13:31,245 INFO L471 AbstractCegarLoop]: Abstraction has has 46 places, 32 transitions, 100 flow [2024-11-12 16:13:31,245 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.0) internal successors, (114), 6 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:13:31,245 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:13:31,245 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 16:13:31,246 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-12 16:13:31,246 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-12 16:13:31,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:13:31,247 INFO L85 PathProgramCache]: Analyzing trace with hash -392481709, now seen corresponding path program 2 times [2024-11-12 16:13:31,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:13:31,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967303713] [2024-11-12 16:13:31,248 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:13:31,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:13:31,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:13:31,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 16:13:31,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:13:31,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967303713] [2024-11-12 16:13:31,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967303713] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:13:31,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 16:13:31,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-12 16:13:31,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438282024] [2024-11-12 16:13:31,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:13:31,380 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 16:13:31,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:13:31,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 16:13:31,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-12 16:13:31,405 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 36 [2024-11-12 16:13:31,405 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 32 transitions, 100 flow. Second operand has 6 states, 6 states have (on average 19.0) internal successors, (114), 6 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:13:31,406 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:13:31,406 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 36 [2024-11-12 16:13:31,406 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 16:13:31,527 INFO L124 PetriNetUnfolderBase]: 65/190 cut-off events. [2024-11-12 16:13:31,528 INFO L125 PetriNetUnfolderBase]: For 51/51 co-relation queries the response was YES. [2024-11-12 16:13:31,530 INFO L83 FinitePrefix]: Finished finitePrefix Result has 407 conditions, 190 events. 65/190 cut-off events. For 51/51 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 784 event pairs, 14 based on Foata normal form. 4/182 useless extension candidates. Maximal degree in co-relation 400. Up to 54 conditions per place. [2024-11-12 16:13:31,530 INFO L140 encePairwiseOnDemand]: 30/36 looper letters, 0 selfloop transitions, 0 changer transitions 41/41 dead transitions. [2024-11-12 16:13:31,530 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 41 transitions, 176 flow [2024-11-12 16:13:31,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 16:13:31,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-12 16:13:31,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 128 transitions. [2024-11-12 16:13:31,533 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5925925925925926 [2024-11-12 16:13:31,534 INFO L175 Difference]: Start difference. First operand has 46 places, 32 transitions, 100 flow. Second operand 6 states and 128 transitions. [2024-11-12 16:13:31,534 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 41 transitions, 176 flow [2024-11-12 16:13:31,535 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 41 transitions, 173 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-11-12 16:13:31,535 INFO L231 Difference]: Finished difference. Result has 44 places, 0 transitions, 0 flow [2024-11-12 16:13:31,536 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=36, PETRI_DIFFERENCE_MINUEND_FLOW=89, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=44, PETRI_TRANSITIONS=0} [2024-11-12 16:13:31,536 INFO L279 CegarLoopForPetriNet]: 38 programPoint places, 6 predicate places. [2024-11-12 16:13:31,537 INFO L471 AbstractCegarLoop]: Abstraction has has 44 places, 0 transitions, 0 flow [2024-11-12 16:13:31,537 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.0) internal successors, (114), 6 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:13:31,540 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (3 of 4 remaining) [2024-11-12 16:13:31,540 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (2 of 4 remaining) [2024-11-12 16:13:31,540 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2024-11-12 16:13:31,541 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2024-11-12 16:13:31,541 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-12 16:13:31,541 INFO L421 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1] [2024-11-12 16:13:31,545 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-12 16:13:31,545 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-12 16:13:31,550 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 04:13:31 BasicIcfg [2024-11-12 16:13:31,550 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-12 16:13:31,551 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-12 16:13:31,551 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-12 16:13:31,551 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-12 16:13:31,552 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 04:13:29" (3/4) ... [2024-11-12 16:13:31,555 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-12 16:13:31,558 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2024-11-12 16:13:31,558 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2024-11-12 16:13:31,563 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 31 nodes and edges [2024-11-12 16:13:31,563 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2024-11-12 16:13:31,565 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-12 16:13:31,565 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-12 16:13:31,639 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-12 16:13:31,640 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-12 16:13:31,640 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-12 16:13:31,641 INFO L158 Benchmark]: Toolchain (without parser) took 3287.36ms. Allocated memory was 127.9MB in the beginning and 174.1MB in the end (delta: 46.1MB). Free memory was 76.9MB in the beginning and 72.8MB in the end (delta: 4.2MB). Peak memory consumption was 53.4MB. Max. memory is 16.1GB. [2024-11-12 16:13:31,641 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 127.9MB. Free memory is still 89.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-12 16:13:31,641 INFO L158 Benchmark]: CACSL2BoogieTranslator took 536.87ms. Allocated memory is still 127.9MB. Free memory was 76.9MB in the beginning and 53.8MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-12 16:13:31,644 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.41ms. Allocated memory is still 127.9MB. Free memory was 53.8MB in the beginning and 51.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-12 16:13:31,644 INFO L158 Benchmark]: Boogie Preprocessor took 73.36ms. Allocated memory is still 127.9MB. Free memory was 51.8MB in the beginning and 98.8MB in the end (delta: -47.1MB). Peak memory consumption was 7.5MB. Max. memory is 16.1GB. [2024-11-12 16:13:31,644 INFO L158 Benchmark]: RCFGBuilder took 431.79ms. Allocated memory is still 127.9MB. Free memory was 98.8MB in the beginning and 80.7MB in the end (delta: 18.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-12 16:13:31,645 INFO L158 Benchmark]: TraceAbstraction took 2099.38ms. Allocated memory was 127.9MB in the beginning and 174.1MB in the end (delta: 46.1MB). Free memory was 80.2MB in the beginning and 77.0MB in the end (delta: 3.2MB). Peak memory consumption was 50.0MB. Max. memory is 16.1GB. [2024-11-12 16:13:31,645 INFO L158 Benchmark]: Witness Printer took 89.62ms. Allocated memory is still 174.1MB. Free memory was 77.0MB in the beginning and 72.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-12 16:13:31,647 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 127.9MB. Free memory is still 89.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 536.87ms. Allocated memory is still 127.9MB. Free memory was 76.9MB in the beginning and 53.8MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.41ms. Allocated memory is still 127.9MB. Free memory was 53.8MB in the beginning and 51.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 73.36ms. Allocated memory is still 127.9MB. Free memory was 51.8MB in the beginning and 98.8MB in the end (delta: -47.1MB). Peak memory consumption was 7.5MB. Max. memory is 16.1GB. * RCFGBuilder took 431.79ms. Allocated memory is still 127.9MB. Free memory was 98.8MB in the beginning and 80.7MB in the end (delta: 18.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 2099.38ms. Allocated memory was 127.9MB in the beginning and 174.1MB in the end (delta: 46.1MB). Free memory was 80.2MB in the beginning and 77.0MB in the end (delta: 3.2MB). Peak memory consumption was 50.0MB. Max. memory is 16.1GB. * Witness Printer took 89.62ms. Allocated memory is still 174.1MB. Free memory was 77.0MB in the beginning and 72.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 762]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 17]: 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, 53 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.0s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 95 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 87 mSDsluCounter, 50 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 45 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 275 IncrementalHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 5 mSDtfsCounter, 275 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=103occurred in iteration=3, InterpolantAutomatonStates: 24, 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, 0.8s InterpolantComputationTime, 95 NumberOfCodeBlocks, 95 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 90 ConstructedInterpolants, 0 QuantifiedInterpolants, 336 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 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-12 16:13:31,677 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