./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/valid-memsafety.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-ticket-2.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-ticket-2.wvr.c -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 69a3560a89bb35c8c81d2aea87ba8845d78238fa641b06d2b772cf5882c5c8f6 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 19:55:13,502 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 19:55:13,567 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-11 19:55:13,574 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 19:55:13,574 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 19:55:13,615 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 19:55:13,615 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 19:55:13,615 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 19:55:13,616 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 19:55:13,616 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 19:55:13,625 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 19:55:13,626 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 19:55:13,627 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 19:55:13,629 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 19:55:13,630 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 19:55:13,630 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 19:55:13,630 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 19:55:13,630 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 19:55:13,630 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 19:55:13,630 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 19:55:13,631 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-11 19:55:13,632 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-11 19:55:13,632 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-11 19:55:13,632 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 19:55:13,632 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-11 19:55:13,632 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 19:55:13,632 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-11 19:55:13,633 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 19:55:13,633 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 19:55:13,633 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 19:55:13,633 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 19:55:13,633 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 19:55:13,634 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 19:55:13,634 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 19:55:13,634 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 19:55:13,634 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 19:55:13,634 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 19:55:13,634 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 19:55:13,635 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 19:55:13,635 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 19:55:13,635 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 19:55:13,642 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 19:55:13,642 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 69a3560a89bb35c8c81d2aea87ba8845d78238fa641b06d2b772cf5882c5c8f6 [2024-10-11 19:55:13,877 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 19:55:13,903 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 19:55:13,907 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 19:55:13,908 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 19:55:13,908 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 19:55:13,909 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-ticket-2.wvr.c [2024-10-11 19:55:15,291 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 19:55:15,466 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 19:55:15,467 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-ticket-2.wvr.c [2024-10-11 19:55:15,476 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/d7f1fc40d/6d09e44e702d4d00a62c76329b6aa2ec/FLAG59269bac4 [2024-10-11 19:55:15,867 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/d7f1fc40d/6d09e44e702d4d00a62c76329b6aa2ec [2024-10-11 19:55:15,870 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 19:55:15,871 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 19:55:15,873 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 19:55:15,873 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 19:55:15,878 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 19:55:15,879 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 07:55:15" (1/1) ... [2024-10-11 19:55:15,880 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28189322 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:55:15, skipping insertion in model container [2024-10-11 19:55:15,880 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 07:55:15" (1/1) ... [2024-10-11 19:55:15,896 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 19:55:16,027 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 19:55:16,035 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 19:55:16,050 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 19:55:16,063 INFO L204 MainTranslator]: Completed translation [2024-10-11 19:55:16,064 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:55:16 WrapperNode [2024-10-11 19:55:16,064 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 19:55:16,065 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 19:55:16,065 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 19:55:16,068 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 19:55:16,074 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:55:16" (1/1) ... [2024-10-11 19:55:16,079 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:55:16" (1/1) ... [2024-10-11 19:55:16,095 INFO L138 Inliner]: procedures = 20, calls = 31, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 116 [2024-10-11 19:55:16,096 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 19:55:16,096 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 19:55:16,096 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 19:55:16,120 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 19:55:16,132 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:55:16" (1/1) ... [2024-10-11 19:55:16,132 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:55:16" (1/1) ... [2024-10-11 19:55:16,134 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:55:16" (1/1) ... [2024-10-11 19:55:16,149 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]. [2024-10-11 19:55:16,149 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:55:16" (1/1) ... [2024-10-11 19:55:16,149 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:55:16" (1/1) ... [2024-10-11 19:55:16,161 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:55:16" (1/1) ... [2024-10-11 19:55:16,162 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:55:16" (1/1) ... [2024-10-11 19:55:16,163 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:55:16" (1/1) ... [2024-10-11 19:55:16,164 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:55:16" (1/1) ... [2024-10-11 19:55:16,166 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 19:55:16,176 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 19:55:16,176 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 19:55:16,176 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 19:55:16,177 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:55:16" (1/1) ... [2024-10-11 19:55:16,185 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 19:55:16,204 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 19:55:16,228 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 19:55:16,240 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 19:55:16,298 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 19:55:16,298 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-10-11 19:55:16,298 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-10-11 19:55:16,298 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-10-11 19:55:16,298 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-10-11 19:55:16,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 19:55:16,298 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-11 19:55:16,298 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-11 19:55:16,299 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 19:55:16,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 19:55:16,300 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-11 19:55:16,435 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 19:55:16,437 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 19:55:16,608 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-11 19:55:16,608 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 19:55:16,772 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 19:55:16,774 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-11 19:55:16,774 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 07:55:16 BoogieIcfgContainer [2024-10-11 19:55:16,774 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 19:55:16,777 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 19:55:16,778 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 19:55:16,781 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 19:55:16,781 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 07:55:15" (1/3) ... [2024-10-11 19:55:16,782 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f8738bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 07:55:16, skipping insertion in model container [2024-10-11 19:55:16,782 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:55:16" (2/3) ... [2024-10-11 19:55:16,783 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f8738bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 07:55:16, skipping insertion in model container [2024-10-11 19:55:16,783 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 07:55:16" (3/3) ... [2024-10-11 19:55:16,784 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-ticket-2.wvr.c [2024-10-11 19:55:16,799 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 19:55:16,799 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-11 19:55:16,800 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-11 19:55:16,835 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-11 19:55:16,865 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 34 places, 27 transitions, 68 flow [2024-10-11 19:55:16,886 INFO L124 PetriNetUnfolderBase]: 0/25 cut-off events. [2024-10-11 19:55:16,887 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-11 19:55:16,889 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34 conditions, 25 events. 0/25 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 21 event pairs, 0 based on Foata normal form. 0/23 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2024-10-11 19:55:16,889 INFO L82 GeneralOperation]: Start removeDead. Operand has 34 places, 27 transitions, 68 flow [2024-10-11 19:55:16,891 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 31 places, 24 transitions, 60 flow [2024-10-11 19:55:16,899 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 19:55:16,904 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;@83a8b73, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 19:55:16,905 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-10-11 19:55:16,914 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-11 19:55:16,915 INFO L124 PetriNetUnfolderBase]: 0/21 cut-off events. [2024-10-11 19:55:16,915 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-11 19:55:16,915 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:55:16,916 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] [2024-10-11 19:55:16,916 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-11 19:55:16,922 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:55:16,923 INFO L85 PathProgramCache]: Analyzing trace with hash 1785233562, now seen corresponding path program 1 times [2024-10-11 19:55:16,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:55:16,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734004572] [2024-10-11 19:55:16,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:55:16,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:55:17,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:55:17,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:55:17,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:55:17,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734004572] [2024-10-11 19:55:17,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734004572] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:55:17,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:55:17,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 19:55:17,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802990091] [2024-10-11 19:55:17,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:55:17,476 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 19:55:17,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:55:17,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 19:55:17,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-11 19:55:17,513 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 27 [2024-10-11 19:55:17,516 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 24 transitions, 60 flow. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 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) [2024-10-11 19:55:17,516 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:55:17,516 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 27 [2024-10-11 19:55:17,517 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:55:17,645 INFO L124 PetriNetUnfolderBase]: 142/281 cut-off events. [2024-10-11 19:55:17,645 INFO L125 PetriNetUnfolderBase]: For 20/20 co-relation queries the response was YES. [2024-10-11 19:55:17,647 INFO L83 FinitePrefix]: Finished finitePrefix Result has 589 conditions, 281 events. 142/281 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1001 event pairs, 114 based on Foata normal form. 2/280 useless extension candidates. Maximal degree in co-relation 529. Up to 192 conditions per place. [2024-10-11 19:55:17,649 INFO L140 encePairwiseOnDemand]: 21/27 looper letters, 22 selfloop transitions, 3 changer transitions 10/38 dead transitions. [2024-10-11 19:55:17,649 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 38 transitions, 167 flow [2024-10-11 19:55:17,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 19:55:17,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-11 19:55:17,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 61 transitions. [2024-10-11 19:55:17,659 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5648148148148148 [2024-10-11 19:55:17,660 INFO L175 Difference]: Start difference. First operand has 31 places, 24 transitions, 60 flow. Second operand 4 states and 61 transitions. [2024-10-11 19:55:17,661 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 38 transitions, 167 flow [2024-10-11 19:55:17,664 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 38 transitions, 153 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-10-11 19:55:17,667 INFO L231 Difference]: Finished difference. Result has 30 places, 22 transitions, 62 flow [2024-10-11 19:55:17,668 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=62, PETRI_PLACES=30, PETRI_TRANSITIONS=22} [2024-10-11 19:55:17,671 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, -1 predicate places. [2024-10-11 19:55:17,671 INFO L471 AbstractCegarLoop]: Abstraction has has 30 places, 22 transitions, 62 flow [2024-10-11 19:55:17,671 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 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) [2024-10-11 19:55:17,671 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:55:17,671 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] [2024-10-11 19:55:17,672 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 19:55:17,672 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-11 19:55:17,672 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:55:17,673 INFO L85 PathProgramCache]: Analyzing trace with hash -1686460700, now seen corresponding path program 2 times [2024-10-11 19:55:17,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:55:17,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254859955] [2024-10-11 19:55:17,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:55:17,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:55:17,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:55:17,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:55:17,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:55:17,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254859955] [2024-10-11 19:55:17,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254859955] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:55:17,817 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:55:17,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 19:55:17,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52381079] [2024-10-11 19:55:17,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:55:17,819 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 19:55:17,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:55:17,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 19:55:17,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 19:55:17,820 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 27 [2024-10-11 19:55:17,821 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 22 transitions, 62 flow. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 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) [2024-10-11 19:55:17,821 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:55:17,821 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 27 [2024-10-11 19:55:17,821 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:55:17,908 INFO L124 PetriNetUnfolderBase]: 38/101 cut-off events. [2024-10-11 19:55:17,909 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-10-11 19:55:17,909 INFO L83 FinitePrefix]: Finished finitePrefix Result has 218 conditions, 101 events. 38/101 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 260 event pairs, 9 based on Foata normal form. 4/104 useless extension candidates. Maximal degree in co-relation 105. Up to 40 conditions per place. [2024-10-11 19:55:17,910 INFO L140 encePairwiseOnDemand]: 21/27 looper letters, 16 selfloop transitions, 4 changer transitions 6/32 dead transitions. [2024-10-11 19:55:17,910 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 32 transitions, 135 flow [2024-10-11 19:55:17,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 19:55:17,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-11 19:55:17,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 72 transitions. [2024-10-11 19:55:17,911 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5333333333333333 [2024-10-11 19:55:17,911 INFO L175 Difference]: Start difference. First operand has 30 places, 22 transitions, 62 flow. Second operand 5 states and 72 transitions. [2024-10-11 19:55:17,912 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 32 transitions, 135 flow [2024-10-11 19:55:17,912 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 32 transitions, 127 flow, removed 1 selfloop flow, removed 3 redundant places. [2024-10-11 19:55:17,913 INFO L231 Difference]: Finished difference. Result has 34 places, 24 transitions, 79 flow [2024-10-11 19:55:17,913 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=79, PETRI_PLACES=34, PETRI_TRANSITIONS=24} [2024-10-11 19:55:17,914 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, 3 predicate places. [2024-10-11 19:55:17,914 INFO L471 AbstractCegarLoop]: Abstraction has has 34 places, 24 transitions, 79 flow [2024-10-11 19:55:17,914 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 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) [2024-10-11 19:55:17,914 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:55:17,914 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] [2024-10-11 19:55:17,915 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 19:55:17,915 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-11 19:55:17,915 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:55:17,915 INFO L85 PathProgramCache]: Analyzing trace with hash -1441442142, now seen corresponding path program 3 times [2024-10-11 19:55:17,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:55:17,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105722438] [2024-10-11 19:55:17,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:55:17,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:55:17,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:55:18,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:55:18,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:55:18,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105722438] [2024-10-11 19:55:18,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2105722438] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:55:18,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:55:18,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 19:55:18,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293363542] [2024-10-11 19:55:18,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:55:18,055 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 19:55:18,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:55:18,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 19:55:18,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 19:55:18,056 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 27 [2024-10-11 19:55:18,056 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 24 transitions, 79 flow. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 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) [2024-10-11 19:55:18,056 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:55:18,056 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 27 [2024-10-11 19:55:18,058 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:55:18,084 INFO L124 PetriNetUnfolderBase]: 6/21 cut-off events. [2024-10-11 19:55:18,085 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2024-10-11 19:55:18,085 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62 conditions, 21 events. 6/21 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 22 event pairs, 0 based on Foata normal form. 4/24 useless extension candidates. Maximal degree in co-relation 55. Up to 8 conditions per place. [2024-10-11 19:55:18,085 INFO L140 encePairwiseOnDemand]: 23/27 looper letters, 0 selfloop transitions, 0 changer transitions 13/13 dead transitions. [2024-10-11 19:55:18,085 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 13 transitions, 63 flow [2024-10-11 19:55:18,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 19:55:18,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-11 19:55:18,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 57 transitions. [2024-10-11 19:55:18,086 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4222222222222222 [2024-10-11 19:55:18,087 INFO L175 Difference]: Start difference. First operand has 34 places, 24 transitions, 79 flow. Second operand 5 states and 57 transitions. [2024-10-11 19:55:18,087 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 13 transitions, 63 flow [2024-10-11 19:55:18,090 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 20 places, 13 transitions, 55 flow, removed 2 selfloop flow, removed 4 redundant places. [2024-10-11 19:55:18,090 INFO L231 Difference]: Finished difference. Result has 20 places, 0 transitions, 0 flow [2024-10-11 19:55:18,091 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=27, PETRI_DIFFERENCE_MINUEND_PLACES=16, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=10, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=20, PETRI_TRANSITIONS=0} [2024-10-11 19:55:18,091 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, -11 predicate places. [2024-10-11 19:55:18,091 INFO L471 AbstractCegarLoop]: Abstraction has has 20 places, 0 transitions, 0 flow [2024-10-11 19:55:18,091 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 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) [2024-10-11 19:55:18,093 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (3 of 4 remaining) [2024-10-11 19:55:18,094 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (2 of 4 remaining) [2024-10-11 19:55:18,094 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2024-10-11 19:55:18,094 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2024-10-11 19:55:18,098 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 19:55:18,098 INFO L407 BasicCegarLoop]: Path program histogram: [3] [2024-10-11 19:55:18,105 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-11 19:55:18,105 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-11 19:55:18,113 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 07:55:18 BasicIcfg [2024-10-11 19:55:18,117 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-11 19:55:18,118 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-11 19:55:18,118 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-11 19:55:18,118 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-11 19:55:18,118 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 07:55:16" (3/4) ... [2024-10-11 19:55:18,120 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-11 19:55:18,122 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-10-11 19:55:18,126 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-10-11 19:55:18,129 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 70 nodes and edges [2024-10-11 19:55:18,133 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2024-10-11 19:55:18,133 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-10-11 19:55:18,134 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-10-11 19:55:18,208 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-11 19:55:18,211 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-11 19:55:18,211 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-11 19:55:18,212 INFO L158 Benchmark]: Toolchain (without parser) took 2341.11ms. Allocated memory was 142.6MB in the beginning and 184.5MB in the end (delta: 41.9MB). Free memory was 71.0MB in the beginning and 61.5MB in the end (delta: 9.5MB). Peak memory consumption was 49.5MB. Max. memory is 16.1GB. [2024-10-11 19:55:18,212 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 142.6MB. Free memory is still 106.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 19:55:18,212 INFO L158 Benchmark]: CACSL2BoogieTranslator took 192.13ms. Allocated memory is still 142.6MB. Free memory was 70.8MB in the beginning and 58.4MB in the end (delta: 12.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-10-11 19:55:18,213 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.37ms. Allocated memory is still 142.6MB. Free memory was 58.2MB in the beginning and 56.5MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 19:55:18,213 INFO L158 Benchmark]: Boogie Preprocessor took 70.46ms. Allocated memory was 142.6MB in the beginning and 184.5MB in the end (delta: 41.9MB). Free memory was 56.5MB in the beginning and 153.6MB in the end (delta: -97.1MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. [2024-10-11 19:55:18,213 INFO L158 Benchmark]: RCFGBuilder took 598.59ms. Allocated memory is still 184.5MB. Free memory was 155.8MB in the beginning and 126.4MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2024-10-11 19:55:18,214 INFO L158 Benchmark]: TraceAbstraction took 1339.65ms. Allocated memory is still 184.5MB. Free memory was 125.5MB in the beginning and 65.7MB in the end (delta: 59.8MB). Peak memory consumption was 57.5MB. Max. memory is 16.1GB. [2024-10-11 19:55:18,216 INFO L158 Benchmark]: Witness Printer took 93.84ms. Allocated memory is still 184.5MB. Free memory was 65.7MB in the beginning and 61.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-11 19:55:18,218 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 142.6MB. Free memory is still 106.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 192.13ms. Allocated memory is still 142.6MB. Free memory was 70.8MB in the beginning and 58.4MB in the end (delta: 12.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.37ms. Allocated memory is still 142.6MB. Free memory was 58.2MB in the beginning and 56.5MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 70.46ms. Allocated memory was 142.6MB in the beginning and 184.5MB in the end (delta: 41.9MB). Free memory was 56.5MB in the beginning and 153.6MB in the end (delta: -97.1MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. * RCFGBuilder took 598.59ms. Allocated memory is still 184.5MB. Free memory was 155.8MB in the beginning and 126.4MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1339.65ms. Allocated memory is still 184.5MB. Free memory was 125.5MB in the beginning and 65.7MB in the end (delta: 59.8MB). Peak memory consumption was 57.5MB. Max. memory is 16.1GB. * Witness Printer took 93.84ms. Allocated memory is still 184.5MB. Free memory was 65.7MB in the beginning and 61.5MB 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: 21]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 82]: 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, 45 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: 1.2s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 43 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 39 mSDsluCounter, 5 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 146 IncrementalHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 3 mSDtfsCounter, 146 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=79occurred in iteration=2, InterpolantAutomatonStates: 14, 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, 0.7s InterpolantComputationTime, 66 NumberOfCodeBlocks, 66 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 63 ConstructedInterpolants, 0 QuantifiedInterpolants, 353 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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! [2024-10-11 19:55:18,238 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE