./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 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/weaver/parallel-ticket-2.wvr.c -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 69a3560a89bb35c8c81d2aea87ba8845d78238fa641b06d2b772cf5882c5c8f6 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 19:18:48,178 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 19:18:48,232 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-24 19:18:48,237 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 19:18:48,239 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 19:18:48,271 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 19:18:48,273 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 19:18:48,273 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 19:18:48,274 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 19:18:48,275 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 19:18:48,275 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 19:18:48,275 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 19:18:48,276 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 19:18:48,276 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 19:18:48,276 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 19:18:48,278 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 19:18:48,278 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 19:18:48,279 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 19:18:48,279 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 19:18:48,279 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 19:18:48,279 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-24 19:18:48,283 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-24 19:18:48,283 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-24 19:18:48,283 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 19:18:48,284 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-24 19:18:48,284 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 19:18:48,284 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-24 19:18:48,284 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 19:18:48,284 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 19:18:48,284 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 19:18:48,285 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 19:18:48,285 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 19:18:48,285 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 19:18:48,285 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 19:18:48,285 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 19:18:48,285 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 19:18:48,286 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 19:18:48,286 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 19:18:48,286 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 19:18:48,286 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 19:18:48,286 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 19:18:48,287 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 19:18:48,287 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 69a3560a89bb35c8c81d2aea87ba8845d78238fa641b06d2b772cf5882c5c8f6 [2024-10-24 19:18:48,502 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 19:18:48,528 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 19:18:48,531 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 19:18:48,532 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 19:18:48,533 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 19:18:48,534 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-ticket-2.wvr.c [2024-10-24 19:18:49,867 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 19:18:50,076 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 19:18:50,077 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-ticket-2.wvr.c [2024-10-24 19:18:50,086 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ca1f54f2/db7a949a1e244528ad0cc32c03ad58a9/FLAG17cf907b2 [2024-10-24 19:18:50,103 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ca1f54f2/db7a949a1e244528ad0cc32c03ad58a9 [2024-10-24 19:18:50,105 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 19:18:50,110 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 19:18:50,122 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 19:18:50,122 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 19:18:50,126 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 19:18:50,129 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 07:18:50" (1/1) ... [2024-10-24 19:18:50,133 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f3ba18d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:18:50, skipping insertion in model container [2024-10-24 19:18:50,133 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 07:18:50" (1/1) ... [2024-10-24 19:18:50,167 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 19:18:50,424 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 19:18:50,433 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 19:18:50,449 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 19:18:50,464 INFO L204 MainTranslator]: Completed translation [2024-10-24 19:18:50,464 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:18:50 WrapperNode [2024-10-24 19:18:50,465 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 19:18:50,466 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 19:18:50,466 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 19:18:50,466 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 19:18:50,472 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:18:50" (1/1) ... [2024-10-24 19:18:50,477 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:18:50" (1/1) ... [2024-10-24 19:18:50,494 INFO L138 Inliner]: procedures = 20, calls = 31, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 116 [2024-10-24 19:18:50,495 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 19:18:50,495 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 19:18:50,495 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 19:18:50,495 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 19:18:50,505 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:18:50" (1/1) ... [2024-10-24 19:18:50,506 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:18:50" (1/1) ... [2024-10-24 19:18:50,507 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:18:50" (1/1) ... [2024-10-24 19:18:50,518 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 19:18:50,519 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:18:50" (1/1) ... [2024-10-24 19:18:50,519 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:18:50" (1/1) ... [2024-10-24 19:18:50,523 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:18:50" (1/1) ... [2024-10-24 19:18:50,524 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:18:50" (1/1) ... [2024-10-24 19:18:50,525 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:18:50" (1/1) ... [2024-10-24 19:18:50,526 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:18:50" (1/1) ... [2024-10-24 19:18:50,527 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 19:18:50,528 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 19:18:50,528 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 19:18:50,528 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 19:18:50,529 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:18:50" (1/1) ... [2024-10-24 19:18:50,534 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 19:18:50,547 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 19:18:50,565 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 19:18:50,570 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 19:18:50,601 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 19:18:50,601 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-10-24 19:18:50,601 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-10-24 19:18:50,601 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-10-24 19:18:50,601 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-10-24 19:18:50,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 19:18:50,601 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-24 19:18:50,602 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-24 19:18:50,602 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 19:18:50,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 19:18:50,603 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 19:18:50,681 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 19:18:50,684 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 19:18:50,898 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-24 19:18:50,899 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 19:18:51,027 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 19:18:51,029 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-24 19:18:51,029 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 07:18:51 BoogieIcfgContainer [2024-10-24 19:18:51,029 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 19:18:51,031 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 19:18:51,032 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 19:18:51,036 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 19:18:51,036 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 07:18:50" (1/3) ... [2024-10-24 19:18:51,037 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59a9a2c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 07:18:51, skipping insertion in model container [2024-10-24 19:18:51,037 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:18:50" (2/3) ... [2024-10-24 19:18:51,037 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59a9a2c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 07:18:51, skipping insertion in model container [2024-10-24 19:18:51,038 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 07:18:51" (3/3) ... [2024-10-24 19:18:51,039 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-ticket-2.wvr.c [2024-10-24 19:18:51,054 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 19:18:51,054 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-24 19:18:51,055 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-24 19:18:51,095 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-24 19:18:51,125 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 34 places, 27 transitions, 68 flow [2024-10-24 19:18:51,173 INFO L124 PetriNetUnfolderBase]: 0/25 cut-off events. [2024-10-24 19:18:51,173 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-24 19:18:51,175 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. [2024-10-24 19:18:51,178 INFO L82 GeneralOperation]: Start removeDead. Operand has 34 places, 27 transitions, 68 flow [2024-10-24 19:18:51,183 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 31 places, 24 transitions, 60 flow [2024-10-24 19:18:51,205 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 19:18:51,215 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;@3c13a75a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 19:18:51,216 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-10-24 19:18:51,235 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-24 19:18:51,242 INFO L124 PetriNetUnfolderBase]: 0/21 cut-off events. [2024-10-24 19:18:51,242 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-24 19:18:51,242 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:18:51,243 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] [2024-10-24 19:18:51,243 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)] === [2024-10-24 19:18:51,250 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:18:51,252 INFO L85 PathProgramCache]: Analyzing trace with hash 1785233562, now seen corresponding path program 1 times [2024-10-24 19:18:51,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:18:51,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245546918] [2024-10-24 19:18:51,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:18:51,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:18:51,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:18:51,886 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 19:18:51,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:18:51,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245546918] [2024-10-24 19:18:51,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245546918] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:18:51,888 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:18:51,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 19:18:51,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755334307] [2024-10-24 19:18:51,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:18:51,897 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 19:18:51,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:18:51,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 19:18:51,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-24 19:18:51,933 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 27 [2024-10-24 19:18:51,935 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) [2024-10-24 19:18:51,936 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:18:51,936 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 27 [2024-10-24 19:18:51,937 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:18:52,082 INFO L124 PetriNetUnfolderBase]: 142/281 cut-off events. [2024-10-24 19:18:52,082 INFO L125 PetriNetUnfolderBase]: For 20/20 co-relation queries the response was YES. [2024-10-24 19:18:52,085 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. [2024-10-24 19:18:52,087 INFO L140 encePairwiseOnDemand]: 21/27 looper letters, 22 selfloop transitions, 3 changer transitions 10/38 dead transitions. [2024-10-24 19:18:52,087 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 38 transitions, 167 flow [2024-10-24 19:18:52,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 19:18:52,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-24 19:18:52,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 61 transitions. [2024-10-24 19:18:52,097 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5648148148148148 [2024-10-24 19:18:52,099 INFO L175 Difference]: Start difference. First operand has 31 places, 24 transitions, 60 flow. Second operand 4 states and 61 transitions. [2024-10-24 19:18:52,099 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 38 transitions, 167 flow [2024-10-24 19:18:52,102 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 38 transitions, 153 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-10-24 19:18:52,104 INFO L231 Difference]: Finished difference. Result has 30 places, 22 transitions, 62 flow [2024-10-24 19:18:52,105 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} [2024-10-24 19:18:52,108 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, -1 predicate places. [2024-10-24 19:18:52,108 INFO L471 AbstractCegarLoop]: Abstraction has has 30 places, 22 transitions, 62 flow [2024-10-24 19:18:52,109 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) [2024-10-24 19:18:52,109 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:18:52,109 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] [2024-10-24 19:18:52,109 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 19:18:52,109 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)] === [2024-10-24 19:18:52,110 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:18:52,110 INFO L85 PathProgramCache]: Analyzing trace with hash -1686460700, now seen corresponding path program 2 times [2024-10-24 19:18:52,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:18:52,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37551045] [2024-10-24 19:18:52,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:18:52,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:18:52,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:18:52,219 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 19:18:52,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:18:52,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37551045] [2024-10-24 19:18:52,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [37551045] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:18:52,220 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:18:52,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 19:18:52,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707969157] [2024-10-24 19:18:52,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:18:52,221 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 19:18:52,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:18:52,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 19:18:52,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 19:18:52,222 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 27 [2024-10-24 19:18:52,222 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) [2024-10-24 19:18:52,223 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:18:52,223 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 27 [2024-10-24 19:18:52,223 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:18:52,310 INFO L124 PetriNetUnfolderBase]: 38/101 cut-off events. [2024-10-24 19:18:52,310 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-10-24 19:18:52,311 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. [2024-10-24 19:18:52,311 INFO L140 encePairwiseOnDemand]: 21/27 looper letters, 16 selfloop transitions, 4 changer transitions 6/32 dead transitions. [2024-10-24 19:18:52,311 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 32 transitions, 135 flow [2024-10-24 19:18:52,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 19:18:52,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-24 19:18:52,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 72 transitions. [2024-10-24 19:18:52,316 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5333333333333333 [2024-10-24 19:18:52,316 INFO L175 Difference]: Start difference. First operand has 30 places, 22 transitions, 62 flow. Second operand 5 states and 72 transitions. [2024-10-24 19:18:52,316 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 32 transitions, 135 flow [2024-10-24 19:18:52,317 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 32 transitions, 127 flow, removed 1 selfloop flow, removed 3 redundant places. [2024-10-24 19:18:52,317 INFO L231 Difference]: Finished difference. Result has 34 places, 24 transitions, 79 flow [2024-10-24 19:18:52,317 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} [2024-10-24 19:18:52,318 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, 3 predicate places. [2024-10-24 19:18:52,318 INFO L471 AbstractCegarLoop]: Abstraction has has 34 places, 24 transitions, 79 flow [2024-10-24 19:18:52,318 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) [2024-10-24 19:18:52,318 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:18:52,319 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] [2024-10-24 19:18:52,319 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 19:18:52,319 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)] === [2024-10-24 19:18:52,319 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:18:52,319 INFO L85 PathProgramCache]: Analyzing trace with hash -1441442142, now seen corresponding path program 3 times [2024-10-24 19:18:52,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:18:52,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284375282] [2024-10-24 19:18:52,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:18:52,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:18:52,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:18:52,460 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 19:18:52,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:18:52,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284375282] [2024-10-24 19:18:52,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284375282] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:18:52,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:18:52,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 19:18:52,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591268624] [2024-10-24 19:18:52,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:18:52,461 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 19:18:52,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:18:52,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 19:18:52,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 19:18:52,462 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 27 [2024-10-24 19:18:52,462 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) [2024-10-24 19:18:52,462 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:18:52,465 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 27 [2024-10-24 19:18:52,465 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:18:52,510 INFO L124 PetriNetUnfolderBase]: 6/21 cut-off events. [2024-10-24 19:18:52,510 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2024-10-24 19:18:52,511 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. [2024-10-24 19:18:52,511 INFO L140 encePairwiseOnDemand]: 23/27 looper letters, 0 selfloop transitions, 0 changer transitions 13/13 dead transitions. [2024-10-24 19:18:52,511 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 13 transitions, 63 flow [2024-10-24 19:18:52,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 19:18:52,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-24 19:18:52,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 57 transitions. [2024-10-24 19:18:52,512 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4222222222222222 [2024-10-24 19:18:52,512 INFO L175 Difference]: Start difference. First operand has 34 places, 24 transitions, 79 flow. Second operand 5 states and 57 transitions. [2024-10-24 19:18:52,512 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 13 transitions, 63 flow [2024-10-24 19:18:52,513 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 20 places, 13 transitions, 55 flow, removed 2 selfloop flow, removed 4 redundant places. [2024-10-24 19:18:52,513 INFO L231 Difference]: Finished difference. Result has 20 places, 0 transitions, 0 flow [2024-10-24 19:18:52,513 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} [2024-10-24 19:18:52,514 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, -11 predicate places. [2024-10-24 19:18:52,514 INFO L471 AbstractCegarLoop]: Abstraction has has 20 places, 0 transitions, 0 flow [2024-10-24 19:18:52,514 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) [2024-10-24 19:18:52,519 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (3 of 4 remaining) [2024-10-24 19:18:52,520 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (2 of 4 remaining) [2024-10-24 19:18:52,520 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2024-10-24 19:18:52,520 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2024-10-24 19:18:52,520 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 19:18:52,520 INFO L407 BasicCegarLoop]: Path program histogram: [3] [2024-10-24 19:18:52,527 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-24 19:18:52,527 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-24 19:18:52,534 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 07:18:52 BasicIcfg [2024-10-24 19:18:52,534 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-24 19:18:52,534 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-24 19:18:52,534 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-24 19:18:52,534 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-24 19:18:52,535 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 07:18:51" (3/4) ... [2024-10-24 19:18:52,536 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-24 19:18:52,542 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-10-24 19:18:52,542 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-10-24 19:18:52,570 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 70 nodes and edges [2024-10-24 19:18:52,571 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2024-10-24 19:18:52,571 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-10-24 19:18:52,571 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-10-24 19:18:52,642 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-24 19:18:52,642 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-24 19:18:52,642 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-24 19:18:52,643 INFO L158 Benchmark]: Toolchain (without parser) took 2533.06ms. Allocated memory was 207.6MB in the beginning and 302.0MB in the end (delta: 94.4MB). Free memory was 150.2MB in the beginning and 263.7MB in the end (delta: -113.5MB). Peak memory consumption was 85.0MB. Max. memory is 16.1GB. [2024-10-24 19:18:52,643 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 207.6MB. Free memory is still 172.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 19:18:52,644 INFO L158 Benchmark]: CACSL2BoogieTranslator took 343.13ms. Allocated memory is still 207.6MB. Free memory was 150.2MB in the beginning and 136.8MB in the end (delta: 13.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-10-24 19:18:52,644 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.05ms. Allocated memory is still 207.6MB. Free memory was 136.4MB in the beginning and 134.8MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 19:18:52,644 INFO L158 Benchmark]: Boogie Preprocessor took 32.38ms. Allocated memory is still 207.6MB. Free memory was 134.8MB in the beginning and 132.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-24 19:18:52,644 INFO L158 Benchmark]: RCFGBuilder took 501.36ms. Allocated memory is still 207.6MB. Free memory was 132.6MB in the beginning and 102.5MB in the end (delta: 30.2MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2024-10-24 19:18:52,645 INFO L158 Benchmark]: TraceAbstraction took 1502.54ms. Allocated memory is still 207.6MB. Free memory was 102.0MB in the beginning and 70.7MB in the end (delta: 31.4MB). Peak memory consumption was 30.5MB. Max. memory is 16.1GB. [2024-10-24 19:18:52,645 INFO L158 Benchmark]: Witness Printer took 108.26ms. Allocated memory was 207.6MB in the beginning and 302.0MB in the end (delta: 94.4MB). Free memory was 70.7MB in the beginning and 263.7MB in the end (delta: -193.1MB). Peak memory consumption was 6.2MB. Max. memory is 16.1GB. [2024-10-24 19:18:52,647 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 207.6MB. Free memory is still 172.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 343.13ms. Allocated memory is still 207.6MB. Free memory was 150.2MB in the beginning and 136.8MB in the end (delta: 13.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.05ms. Allocated memory is still 207.6MB. Free memory was 136.4MB in the beginning and 134.8MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 32.38ms. Allocated memory is still 207.6MB. Free memory was 134.8MB in the beginning and 132.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 501.36ms. Allocated memory is still 207.6MB. Free memory was 132.6MB in the beginning and 102.5MB in the end (delta: 30.2MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * TraceAbstraction took 1502.54ms. Allocated memory is still 207.6MB. Free memory was 102.0MB in the beginning and 70.7MB in the end (delta: 31.4MB). Peak memory consumption was 30.5MB. Max. memory is 16.1GB. * Witness Printer took 108.26ms. Allocated memory was 207.6MB in the beginning and 302.0MB in the end (delta: 94.4MB). Free memory was 70.7MB in the beginning and 263.7MB in the end (delta: -193.1MB). Peak memory consumption was 6.2MB. 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: 1.4s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, 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, 313 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! [2024-10-24 19:18:52,677 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE