./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 4a390ef5 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 ee3d1a41e169e13d6fb9bc974b1d8f7c8de5421cb2dfbc7e3d9a400662188398 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 18:52:13,349 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 18:52:13,437 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-24 18:52:13,445 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 18:52:13,446 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 18:52:13,484 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 18:52:13,484 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 18:52:13,484 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 18:52:13,485 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 18:52:13,489 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 18:52:13,491 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 18:52:13,491 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 18:52:13,492 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 18:52:13,492 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 18:52:13,493 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 18:52:13,493 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 18:52:13,493 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 18:52:13,493 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 18:52:13,494 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 18:52:13,494 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 18:52:13,496 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-24 18:52:13,497 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-24 18:52:13,497 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-24 18:52:13,497 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 18:52:13,497 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-24 18:52:13,498 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 18:52:13,498 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-24 18:52:13,498 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 18:52:13,498 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 18:52:13,499 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 18:52:13,499 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 18:52:13,499 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 18:52:13,499 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 18:52:13,500 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 18:52:13,500 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 18:52:13,500 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 18:52:13,501 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 18:52:13,501 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 18:52:13,502 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 18:52:13,502 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 18:52:13,502 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 18:52:13,503 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 18:52:13,503 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ee3d1a41e169e13d6fb9bc974b1d8f7c8de5421cb2dfbc7e3d9a400662188398 [2024-10-24 18:52:13,749 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 18:52:13,777 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 18:52:13,781 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 18:52:13,782 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 18:52:13,783 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 18:52:13,784 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-atomic/peterson.i [2024-10-24 18:52:15,236 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 18:52:15,483 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 18:52:15,484 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-atomic/peterson.i [2024-10-24 18:52:15,504 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c6c6c1b5/2fdfd965d6d44584aa940c4a358e76e7/FLAGb149eb4c5 [2024-10-24 18:52:15,526 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c6c6c1b5/2fdfd965d6d44584aa940c4a358e76e7 [2024-10-24 18:52:15,528 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 18:52:15,530 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 18:52:15,531 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 18:52:15,531 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 18:52:15,535 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 18:52:15,536 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 06:52:15" (1/1) ... [2024-10-24 18:52:15,537 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f84ef83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:52:15, skipping insertion in model container [2024-10-24 18:52:15,537 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 06:52:15" (1/1) ... [2024-10-24 18:52:15,574 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 18:52:15,913 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 18:52:15,923 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 18:52:15,973 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 18:52:16,014 INFO L204 MainTranslator]: Completed translation [2024-10-24 18:52:16,014 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:52:16 WrapperNode [2024-10-24 18:52:16,015 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 18:52:16,016 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 18:52:16,016 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 18:52:16,016 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 18:52:16,024 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:52:16" (1/1) ... [2024-10-24 18:52:16,036 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:52:16" (1/1) ... [2024-10-24 18:52:16,062 INFO L138 Inliner]: procedures = 169, calls = 38, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 98 [2024-10-24 18:52:16,063 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 18:52:16,066 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 18:52:16,066 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 18:52:16,066 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 18:52:16,076 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:52:16" (1/1) ... [2024-10-24 18:52:16,076 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:52:16" (1/1) ... [2024-10-24 18:52:16,081 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:52:16" (1/1) ... [2024-10-24 18:52:16,102 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]. [2024-10-24 18:52:16,102 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:52:16" (1/1) ... [2024-10-24 18:52:16,103 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:52:16" (1/1) ... [2024-10-24 18:52:16,107 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:52:16" (1/1) ... [2024-10-24 18:52:16,114 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:52:16" (1/1) ... [2024-10-24 18:52:16,119 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:52:16" (1/1) ... [2024-10-24 18:52:16,120 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:52:16" (1/1) ... [2024-10-24 18:52:16,122 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 18:52:16,123 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 18:52:16,123 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 18:52:16,124 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 18:52:16,124 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:52:16" (1/1) ... [2024-10-24 18:52:16,130 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 18:52:16,144 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 18:52:16,161 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) [2024-10-24 18:52:16,165 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 [2024-10-24 18:52:16,218 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2024-10-24 18:52:16,218 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2024-10-24 18:52:16,218 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2024-10-24 18:52:16,218 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2024-10-24 18:52:16,219 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-24 18:52:16,220 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 18:52:16,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 18:52:16,220 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-24 18:52:16,220 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 18:52:16,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 18:52:16,222 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-24 18:52:16,374 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 18:52:16,377 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 18:52:16,510 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-24 18:52:16,511 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 18:52:16,588 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 18:52:16,589 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-24 18:52:16,589 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 06:52:16 BoogieIcfgContainer [2024-10-24 18:52:16,590 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 18:52:16,592 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 18:52:16,592 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 18:52:16,596 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 18:52:16,597 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 06:52:15" (1/3) ... [2024-10-24 18:52:16,597 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b2393e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 06:52:16, skipping insertion in model container [2024-10-24 18:52:16,598 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:52:16" (2/3) ... [2024-10-24 18:52:16,598 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b2393e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 06:52:16, skipping insertion in model container [2024-10-24 18:52:16,598 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 06:52:16" (3/3) ... [2024-10-24 18:52:16,600 INFO L112 eAbstractionObserver]: Analyzing ICFG peterson.i [2024-10-24 18:52:16,618 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 18:52:16,618 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-10-24 18:52:16,618 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-24 18:52:16,680 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-24 18:52:16,723 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 49 places, 48 transitions, 110 flow [2024-10-24 18:52:16,748 INFO L124 PetriNetUnfolderBase]: 6/46 cut-off events. [2024-10-24 18:52:16,749 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-24 18:52:16,754 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55 conditions, 46 events. 6/46 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 81 event pairs, 0 based on Foata normal form. 0/37 useless extension candidates. Maximal degree in co-relation 41. Up to 2 conditions per place. [2024-10-24 18:52:16,754 INFO L82 GeneralOperation]: Start removeDead. Operand has 49 places, 48 transitions, 110 flow [2024-10-24 18:52:16,758 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 46 places, 45 transitions, 102 flow [2024-10-24 18:52:16,767 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 18:52:16,775 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;@3be97c7a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 18:52:16,775 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-10-24 18:52:16,797 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-24 18:52:16,798 INFO L124 PetriNetUnfolderBase]: 4/33 cut-off events. [2024-10-24 18:52:16,798 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-24 18:52:16,798 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 18:52:16,799 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 18:52:16,800 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)] === [2024-10-24 18:52:16,806 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:52:16,807 INFO L85 PathProgramCache]: Analyzing trace with hash 1425326160, now seen corresponding path program 1 times [2024-10-24 18:52:16,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 18:52:16,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165231073] [2024-10-24 18:52:16,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:52:16,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 18:52:16,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:52:17,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 18:52:17,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 18:52:17,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165231073] [2024-10-24 18:52:17,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [165231073] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 18:52:17,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 18:52:17,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 18:52:17,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170301362] [2024-10-24 18:52:17,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 18:52:17,088 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 18:52:17,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 18:52:17,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 18:52:17,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 18:52:17,145 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 48 [2024-10-24 18:52:17,148 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 45 transitions, 102 flow. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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) [2024-10-24 18:52:17,149 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 18:52:17,149 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 48 [2024-10-24 18:52:17,151 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 18:52:17,325 INFO L124 PetriNetUnfolderBase]: 62/213 cut-off events. [2024-10-24 18:52:17,325 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-10-24 18:52:17,327 INFO L83 FinitePrefix]: Finished finitePrefix Result has 366 conditions, 213 events. 62/213 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1065 event pairs, 20 based on Foata normal form. 56/247 useless extension candidates. Maximal degree in co-relation 304. Up to 72 conditions per place. [2024-10-24 18:52:17,331 INFO L140 encePairwiseOnDemand]: 39/48 looper letters, 18 selfloop transitions, 3 changer transitions 0/46 dead transitions. [2024-10-24 18:52:17,331 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 46 transitions, 152 flow [2024-10-24 18:52:17,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 18:52:17,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 18:52:17,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 116 transitions. [2024-10-24 18:52:17,350 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8055555555555556 [2024-10-24 18:52:17,351 INFO L175 Difference]: Start difference. First operand has 46 places, 45 transitions, 102 flow. Second operand 3 states and 116 transitions. [2024-10-24 18:52:17,352 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 46 transitions, 152 flow [2024-10-24 18:52:17,355 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 46 transitions, 140 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-10-24 18:52:17,358 INFO L231 Difference]: Finished difference. Result has 44 places, 40 transitions, 102 flow [2024-10-24 18:52:17,360 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=102, PETRI_PLACES=44, PETRI_TRANSITIONS=40} [2024-10-24 18:52:17,364 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, -2 predicate places. [2024-10-24 18:52:17,364 INFO L471 AbstractCegarLoop]: Abstraction has has 44 places, 40 transitions, 102 flow [2024-10-24 18:52:17,365 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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) [2024-10-24 18:52:17,365 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 18:52:17,365 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 18:52:17,365 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 18:52:17,366 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)] === [2024-10-24 18:52:17,366 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:52:17,366 INFO L85 PathProgramCache]: Analyzing trace with hash 1251996175, now seen corresponding path program 1 times [2024-10-24 18:52:17,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 18:52:17,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75607155] [2024-10-24 18:52:17,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:52:17,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 18:52:17,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:52:17,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 18:52:17,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 18:52:17,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75607155] [2024-10-24 18:52:17,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [75607155] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 18:52:17,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 18:52:17,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 18:52:17,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81315866] [2024-10-24 18:52:17,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 18:52:17,459 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 18:52:17,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 18:52:17,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 18:52:17,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 18:52:17,465 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 48 [2024-10-24 18:52:17,466 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 40 transitions, 102 flow. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 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) [2024-10-24 18:52:17,466 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 18:52:17,466 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 48 [2024-10-24 18:52:17,466 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 18:52:17,548 INFO L124 PetriNetUnfolderBase]: 57/208 cut-off events. [2024-10-24 18:52:17,549 INFO L125 PetriNetUnfolderBase]: For 50/50 co-relation queries the response was YES. [2024-10-24 18:52:17,550 INFO L83 FinitePrefix]: Finished finitePrefix Result has 394 conditions, 208 events. 57/208 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1006 event pairs, 30 based on Foata normal form. 15/213 useless extension candidates. Maximal degree in co-relation 89. Up to 81 conditions per place. [2024-10-24 18:52:17,551 INFO L140 encePairwiseOnDemand]: 44/48 looper letters, 18 selfloop transitions, 2 changer transitions 0/45 dead transitions. [2024-10-24 18:52:17,552 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 45 transitions, 154 flow [2024-10-24 18:52:17,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 18:52:17,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 18:52:17,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 109 transitions. [2024-10-24 18:52:17,554 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7569444444444444 [2024-10-24 18:52:17,554 INFO L175 Difference]: Start difference. First operand has 44 places, 40 transitions, 102 flow. Second operand 3 states and 109 transitions. [2024-10-24 18:52:17,554 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 45 transitions, 154 flow [2024-10-24 18:52:17,556 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 45 transitions, 148 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 18:52:17,557 INFO L231 Difference]: Finished difference. Result has 45 places, 40 transitions, 106 flow [2024-10-24 18:52:17,557 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=106, PETRI_PLACES=45, PETRI_TRANSITIONS=40} [2024-10-24 18:52:17,558 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, -1 predicate places. [2024-10-24 18:52:17,558 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 40 transitions, 106 flow [2024-10-24 18:52:17,558 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 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) [2024-10-24 18:52:17,559 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 18:52:17,559 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 18:52:17,559 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 18:52:17,559 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)] === [2024-10-24 18:52:17,560 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:52:17,560 INFO L85 PathProgramCache]: Analyzing trace with hash 961963101, now seen corresponding path program 1 times [2024-10-24 18:52:17,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 18:52:17,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647072778] [2024-10-24 18:52:17,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:52:17,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 18:52:17,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:52:17,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 18:52:17,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 18:52:17,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647072778] [2024-10-24 18:52:17,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [647072778] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 18:52:17,793 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 18:52:17,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 18:52:17,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747862511] [2024-10-24 18:52:17,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 18:52:17,796 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 18:52:17,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 18:52:17,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 18:52:17,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-24 18:52:17,836 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 48 [2024-10-24 18:52:17,837 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 40 transitions, 106 flow. Second operand has 6 states, 6 states have (on average 23.0) internal successors, (138), 6 states have internal predecessors, (138), 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) [2024-10-24 18:52:17,838 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 18:52:17,841 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 48 [2024-10-24 18:52:17,841 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 18:52:18,164 INFO L124 PetriNetUnfolderBase]: 287/653 cut-off events. [2024-10-24 18:52:18,165 INFO L125 PetriNetUnfolderBase]: For 244/244 co-relation queries the response was YES. [2024-10-24 18:52:18,171 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1283 conditions, 653 events. 287/653 cut-off events. For 244/244 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 3569 event pairs, 69 based on Foata normal form. 22/666 useless extension candidates. Maximal degree in co-relation 867. Up to 170 conditions per place. [2024-10-24 18:52:18,178 INFO L140 encePairwiseOnDemand]: 38/48 looper letters, 54 selfloop transitions, 20 changer transitions 0/91 dead transitions. [2024-10-24 18:52:18,178 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 91 transitions, 375 flow [2024-10-24 18:52:18,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 18:52:18,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-24 18:52:18,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 287 transitions. [2024-10-24 18:52:18,182 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5979166666666667 [2024-10-24 18:52:18,183 INFO L175 Difference]: Start difference. First operand has 45 places, 40 transitions, 106 flow. Second operand 10 states and 287 transitions. [2024-10-24 18:52:18,183 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 91 transitions, 375 flow [2024-10-24 18:52:18,185 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 91 transitions, 372 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-24 18:52:18,187 INFO L231 Difference]: Finished difference. Result has 62 places, 59 transitions, 254 flow [2024-10-24 18:52:18,187 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=254, PETRI_PLACES=62, PETRI_TRANSITIONS=59} [2024-10-24 18:52:18,188 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, 16 predicate places. [2024-10-24 18:52:18,188 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 59 transitions, 254 flow [2024-10-24 18:52:18,188 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.0) internal successors, (138), 6 states have internal predecessors, (138), 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) [2024-10-24 18:52:18,189 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 18:52:18,189 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 18:52:18,189 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 18:52:18,189 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)] === [2024-10-24 18:52:18,190 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:52:18,190 INFO L85 PathProgramCache]: Analyzing trace with hash -156786651, now seen corresponding path program 2 times [2024-10-24 18:52:18,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 18:52:18,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703805925] [2024-10-24 18:52:18,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:52:18,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 18:52:18,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:52:18,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 18:52:18,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 18:52:18,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703805925] [2024-10-24 18:52:18,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703805925] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 18:52:18,306 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 18:52:18,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 18:52:18,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891941739] [2024-10-24 18:52:18,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 18:52:18,307 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 18:52:18,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 18:52:18,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 18:52:18,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-24 18:52:18,337 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 48 [2024-10-24 18:52:18,338 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 59 transitions, 254 flow. Second operand has 6 states, 6 states have (on average 23.0) internal successors, (138), 6 states have internal predecessors, (138), 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) [2024-10-24 18:52:18,338 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 18:52:18,338 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 48 [2024-10-24 18:52:18,339 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 18:52:18,593 INFO L124 PetriNetUnfolderBase]: 282/643 cut-off events. [2024-10-24 18:52:18,593 INFO L125 PetriNetUnfolderBase]: For 843/855 co-relation queries the response was YES. [2024-10-24 18:52:18,598 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1734 conditions, 643 events. 282/643 cut-off events. For 843/855 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 3402 event pairs, 57 based on Foata normal form. 24/664 useless extension candidates. Maximal degree in co-relation 923. Up to 152 conditions per place. [2024-10-24 18:52:18,602 INFO L140 encePairwiseOnDemand]: 38/48 looper letters, 48 selfloop transitions, 22 changer transitions 0/95 dead transitions. [2024-10-24 18:52:18,602 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 95 transitions, 512 flow [2024-10-24 18:52:18,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 18:52:18,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-24 18:52:18,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 277 transitions. [2024-10-24 18:52:18,606 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5770833333333333 [2024-10-24 18:52:18,606 INFO L175 Difference]: Start difference. First operand has 62 places, 59 transitions, 254 flow. Second operand 10 states and 277 transitions. [2024-10-24 18:52:18,606 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 95 transitions, 512 flow [2024-10-24 18:52:18,615 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 95 transitions, 498 flow, removed 7 selfloop flow, removed 0 redundant places. [2024-10-24 18:52:18,618 INFO L231 Difference]: Finished difference. Result has 74 places, 68 transitions, 388 flow [2024-10-24 18:52:18,618 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=218, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=388, PETRI_PLACES=74, PETRI_TRANSITIONS=68} [2024-10-24 18:52:18,619 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, 28 predicate places. [2024-10-24 18:52:18,619 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 68 transitions, 388 flow [2024-10-24 18:52:18,619 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.0) internal successors, (138), 6 states have internal predecessors, (138), 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) [2024-10-24 18:52:18,619 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 18:52:18,620 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 18:52:18,620 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 18:52:18,620 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)] === [2024-10-24 18:52:18,620 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:52:18,621 INFO L85 PathProgramCache]: Analyzing trace with hash 441963388, now seen corresponding path program 1 times [2024-10-24 18:52:18,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 18:52:18,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295994366] [2024-10-24 18:52:18,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:52:18,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 18:52:18,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:52:18,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 18:52:18,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 18:52:18,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295994366] [2024-10-24 18:52:18,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [295994366] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 18:52:18,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 18:52:18,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-24 18:52:18,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088417409] [2024-10-24 18:52:18,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 18:52:18,661 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 18:52:18,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 18:52:18,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 18:52:18,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 18:52:18,664 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 48 [2024-10-24 18:52:18,665 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 68 transitions, 388 flow. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 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) [2024-10-24 18:52:18,665 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 18:52:18,665 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 48 [2024-10-24 18:52:18,665 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 18:52:18,721 INFO L124 PetriNetUnfolderBase]: 91/294 cut-off events. [2024-10-24 18:52:18,721 INFO L125 PetriNetUnfolderBase]: For 438/445 co-relation queries the response was YES. [2024-10-24 18:52:18,723 INFO L83 FinitePrefix]: Finished finitePrefix Result has 874 conditions, 294 events. 91/294 cut-off events. For 438/445 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1602 event pairs, 36 based on Foata normal form. 5/267 useless extension candidates. Maximal degree in co-relation 733. Up to 111 conditions per place. [2024-10-24 18:52:18,723 INFO L140 encePairwiseOnDemand]: 46/48 looper letters, 0 selfloop transitions, 0 changer transitions 67/67 dead transitions. [2024-10-24 18:52:18,724 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 67 transitions, 410 flow [2024-10-24 18:52:18,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 18:52:18,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 18:52:18,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 99 transitions. [2024-10-24 18:52:18,725 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6875 [2024-10-24 18:52:18,725 INFO L175 Difference]: Start difference. First operand has 74 places, 68 transitions, 388 flow. Second operand 3 states and 99 transitions. [2024-10-24 18:52:18,725 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 67 transitions, 410 flow [2024-10-24 18:52:18,729 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 67 transitions, 405 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 18:52:18,730 INFO L231 Difference]: Finished difference. Result has 73 places, 0 transitions, 0 flow [2024-10-24 18:52:18,730 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=381, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=73, PETRI_TRANSITIONS=0} [2024-10-24 18:52:18,731 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, 27 predicate places. [2024-10-24 18:52:18,731 INFO L471 AbstractCegarLoop]: Abstraction has has 73 places, 0 transitions, 0 flow [2024-10-24 18:52:18,731 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 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) [2024-10-24 18:52:18,734 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr2Err0ASSERT_VIOLATIONMEMORY_LEAK (6 of 7 remaining) [2024-10-24 18:52:18,735 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONMEMORY_LEAK (5 of 7 remaining) [2024-10-24 18:52:18,735 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (4 of 7 remaining) [2024-10-24 18:52:18,735 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 7 remaining) [2024-10-24 18:52:18,735 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 7 remaining) [2024-10-24 18:52:18,736 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr2Err0ASSERT_VIOLATIONMEMORY_LEAK (1 of 7 remaining) [2024-10-24 18:52:18,736 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 7 remaining) [2024-10-24 18:52:18,736 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 18:52:18,736 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1] [2024-10-24 18:52:18,741 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-24 18:52:18,742 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-24 18:52:18,747 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 06:52:18 BasicIcfg [2024-10-24 18:52:18,747 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-24 18:52:18,748 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-24 18:52:18,748 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-24 18:52:18,748 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-24 18:52:18,749 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 06:52:16" (3/4) ... [2024-10-24 18:52:18,750 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-24 18:52:18,753 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thr2 [2024-10-24 18:52:18,756 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thr1 [2024-10-24 18:52:18,760 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 31 nodes and edges [2024-10-24 18:52:18,761 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-10-24 18:52:18,761 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-10-24 18:52:18,761 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-10-24 18:52:18,850 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-24 18:52:18,850 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-24 18:52:18,850 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-24 18:52:18,851 INFO L158 Benchmark]: Toolchain (without parser) took 3321.25ms. Allocated memory was 178.3MB in the beginning and 257.9MB in the end (delta: 79.7MB). Free memory was 121.8MB in the beginning and 209.4MB in the end (delta: -87.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 18:52:18,851 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 178.3MB. Free memory is still 141.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 18:52:18,852 INFO L158 Benchmark]: CACSL2BoogieTranslator took 484.09ms. Allocated memory is still 178.3MB. Free memory was 121.4MB in the beginning and 99.6MB in the end (delta: 21.8MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-10-24 18:52:18,852 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.20ms. Allocated memory is still 178.3MB. Free memory was 99.6MB in the beginning and 97.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-24 18:52:18,852 INFO L158 Benchmark]: Boogie Preprocessor took 56.89ms. Allocated memory is still 178.3MB. Free memory was 97.4MB in the beginning and 95.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-24 18:52:18,853 INFO L158 Benchmark]: RCFGBuilder took 466.43ms. Allocated memory is still 178.3MB. Free memory was 95.4MB in the beginning and 78.2MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-10-24 18:52:18,853 INFO L158 Benchmark]: TraceAbstraction took 2155.09ms. Allocated memory was 178.3MB in the beginning and 257.9MB in the end (delta: 79.7MB). Free memory was 77.4MB in the beginning and 213.5MB in the end (delta: -136.2MB). Peak memory consumption was 59.9MB. Max. memory is 16.1GB. [2024-10-24 18:52:18,853 INFO L158 Benchmark]: Witness Printer took 102.62ms. Allocated memory is still 257.9MB. Free memory was 213.5MB in the beginning and 209.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-24 18:52:18,856 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 178.3MB. Free memory is still 141.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 484.09ms. Allocated memory is still 178.3MB. Free memory was 121.4MB in the beginning and 99.6MB in the end (delta: 21.8MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.20ms. Allocated memory is still 178.3MB. Free memory was 99.6MB in the beginning and 97.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 56.89ms. Allocated memory is still 178.3MB. Free memory was 97.4MB in the beginning and 95.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 466.43ms. Allocated memory is still 178.3MB. Free memory was 95.4MB in the beginning and 78.2MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 2155.09ms. Allocated memory was 178.3MB in the beginning and 257.9MB in the end (delta: 79.7MB). Free memory was 77.4MB in the beginning and 213.5MB in the end (delta: -136.2MB). Peak memory consumption was 59.9MB. Max. memory is 16.1GB. * Witness Printer took 102.62ms. Allocated memory is still 257.9MB. Free memory was 213.5MB in the beginning and 209.4MB 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: 759]: 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, 77 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: 2.0s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 135 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 108 mSDsluCounter, 80 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 43 mSDsCounter, 15 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 430 IncrementalHoareTripleChecker+Invalid, 445 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15 mSolverCounterUnsat, 37 mSDtfsCounter, 430 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=388occurred in iteration=4, InterpolantAutomatonStates: 29, 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, 0.5s InterpolantComputationTime, 89 NumberOfCodeBlocks, 89 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 84 ConstructedInterpolants, 0 QuantifiedInterpolants, 206 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! [2024-10-24 18:52:18,884 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