./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe032_tso.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 61a67961 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/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe032_tso.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-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 ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ffff09405c16ea86880fae0b9b6268edfa5ef4b2d03cee31a9e4f2e1ac044811 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 14:27:34,612 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 14:27:34,686 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-14 14:27:34,691 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 14:27:34,692 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 14:27:34,714 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 14:27:34,715 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 14:27:34,715 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 14:27:34,716 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 14:27:34,716 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 14:27:34,717 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 14:27:34,717 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 14:27:34,718 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 14:27:34,718 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 14:27:34,718 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 14:27:34,719 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 14:27:34,719 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 14:27:34,719 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 14:27:34,720 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 14:27:34,720 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 14:27:34,720 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 14:27:34,721 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 14:27:34,721 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 14:27:34,722 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 14:27:34,722 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 14:27:34,722 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 14:27:34,722 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 14:27:34,723 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 14:27:34,723 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 14:27:34,723 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 14:27:34,724 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 14:27:34,724 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 14:27:34,724 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 14:27:34,725 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 14:27:34,725 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 14:27:34,726 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 14:27:34,726 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 14:27:34,726 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 14:27:34,727 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 14:27:34,727 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 14:27:34,727 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 14:27:34,728 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 14:27:34,728 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ffff09405c16ea86880fae0b9b6268edfa5ef4b2d03cee31a9e4f2e1ac044811 [2024-10-14 14:27:34,988 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 14:27:35,012 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 14:27:35,015 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 14:27:35,017 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 14:27:35,017 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 14:27:35,018 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe032_tso.i [2024-10-14 14:27:36,426 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 14:27:36,671 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 14:27:36,672 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe032_tso.i [2024-10-14 14:27:36,693 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/31006026f/0228301fae824065b6c7b827465a8fc1/FLAGd8bf12ee1 [2024-10-14 14:27:36,707 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/31006026f/0228301fae824065b6c7b827465a8fc1 [2024-10-14 14:27:36,709 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 14:27:36,710 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 14:27:36,711 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 14:27:36,711 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 14:27:36,715 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 14:27:36,716 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 02:27:36" (1/1) ... [2024-10-14 14:27:36,716 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f0a74a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:27:36, skipping insertion in model container [2024-10-14 14:27:36,716 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 02:27:36" (1/1) ... [2024-10-14 14:27:36,763 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 14:27:36,945 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe032_tso.i[945,958] [2024-10-14 14:27:37,138 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 14:27:37,154 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 14:27:37,169 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe032_tso.i[945,958] [2024-10-14 14:27:37,214 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 14:27:37,256 INFO L204 MainTranslator]: Completed translation [2024-10-14 14:27:37,256 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:27:37 WrapperNode [2024-10-14 14:27:37,257 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 14:27:37,258 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 14:27:37,259 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 14:27:37,259 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 14:27:37,266 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:27:37" (1/1) ... [2024-10-14 14:27:37,286 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:27:37" (1/1) ... [2024-10-14 14:27:37,311 INFO L138 Inliner]: procedures = 175, calls = 45, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 57 [2024-10-14 14:27:37,311 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 14:27:37,312 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 14:27:37,312 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 14:27:37,313 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 14:27:37,323 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:27:37" (1/1) ... [2024-10-14 14:27:37,323 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:27:37" (1/1) ... [2024-10-14 14:27:37,327 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:27:37" (1/1) ... [2024-10-14 14:27:37,341 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]. [2024-10-14 14:27:37,342 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:27:37" (1/1) ... [2024-10-14 14:27:37,342 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:27:37" (1/1) ... [2024-10-14 14:27:37,346 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:27:37" (1/1) ... [2024-10-14 14:27:37,348 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:27:37" (1/1) ... [2024-10-14 14:27:37,349 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:27:37" (1/1) ... [2024-10-14 14:27:37,350 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:27:37" (1/1) ... [2024-10-14 14:27:37,353 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 14:27:37,353 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 14:27:37,354 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 14:27:37,354 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 14:27:37,355 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:27:37" (1/1) ... [2024-10-14 14:27:37,363 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 14:27:37,372 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 14:27:37,386 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) [2024-10-14 14:27:37,391 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 [2024-10-14 14:27:37,435 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-14 14:27:37,436 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 14:27:37,436 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-10-14 14:27:37,436 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-10-14 14:27:37,436 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-10-14 14:27:37,436 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-10-14 14:27:37,436 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-10-14 14:27:37,438 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-10-14 14:27:37,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 14:27:37,438 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-14 14:27:37,438 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 14:27:37,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 14:27:37,440 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-14 14:27:37,563 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 14:27:37,565 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 14:27:37,698 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-14 14:27:37,700 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 14:27:37,787 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 14:27:37,788 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-14 14:27:37,788 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 02:27:37 BoogieIcfgContainer [2024-10-14 14:27:37,788 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 14:27:37,790 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 14:27:37,790 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 14:27:37,793 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 14:27:37,794 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 02:27:36" (1/3) ... [2024-10-14 14:27:37,795 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@692e58d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 02:27:37, skipping insertion in model container [2024-10-14 14:27:37,795 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:27:37" (2/3) ... [2024-10-14 14:27:37,796 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@692e58d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 02:27:37, skipping insertion in model container [2024-10-14 14:27:37,796 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 02:27:37" (3/3) ... [2024-10-14 14:27:37,798 INFO L112 eAbstractionObserver]: Analyzing ICFG safe032_tso.i [2024-10-14 14:27:37,830 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 14:27:37,830 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-14 14:27:37,830 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-14 14:27:37,895 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-14 14:27:37,940 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 49 places, 40 transitions, 92 flow [2024-10-14 14:27:37,976 INFO L124 PetriNetUnfolderBase]: 1/37 cut-off events. [2024-10-14 14:27:37,977 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-14 14:27:37,984 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47 conditions, 37 events. 1/37 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 68 event pairs, 0 based on Foata normal form. 0/35 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2024-10-14 14:27:37,984 INFO L82 GeneralOperation]: Start removeDead. Operand has 49 places, 40 transitions, 92 flow [2024-10-14 14:27:37,992 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 44 places, 34 transitions, 77 flow [2024-10-14 14:27:38,001 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 14:27:38,009 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=LoopHeads, 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;@4e09d2c9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 14:27:38,009 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-10-14 14:27:38,030 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-14 14:27:38,030 INFO L124 PetriNetUnfolderBase]: 0/33 cut-off events. [2024-10-14 14:27:38,030 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-14 14:27:38,031 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 14:27:38,031 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 14:27:38,032 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-14 14:27:38,036 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 14:27:38,036 INFO L85 PathProgramCache]: Analyzing trace with hash -81252501, now seen corresponding path program 1 times [2024-10-14 14:27:38,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 14:27:38,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159514151] [2024-10-14 14:27:38,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 14:27:38,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 14:27:38,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:27:38,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 14:27:38,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 14:27:38,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159514151] [2024-10-14 14:27:38,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [159514151] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 14:27:38,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 14:27:38,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 14:27:38,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174233997] [2024-10-14 14:27:38,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 14:27:38,579 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 14:27:38,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 14:27:38,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 14:27:38,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 14:27:38,619 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 40 [2024-10-14 14:27:38,622 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 34 transitions, 77 flow. Second operand has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 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) [2024-10-14 14:27:38,622 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 14:27:38,622 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 40 [2024-10-14 14:27:38,623 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 14:27:38,818 INFO L124 PetriNetUnfolderBase]: 291/593 cut-off events. [2024-10-14 14:27:38,818 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2024-10-14 14:27:38,825 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1099 conditions, 593 events. 291/593 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 3198 event pairs, 58 based on Foata normal form. 27/610 useless extension candidates. Maximal degree in co-relation 1088. Up to 236 conditions per place. [2024-10-14 14:27:38,833 INFO L140 encePairwiseOnDemand]: 34/40 looper letters, 25 selfloop transitions, 5 changer transitions 1/49 dead transitions. [2024-10-14 14:27:38,833 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 49 transitions, 175 flow [2024-10-14 14:27:38,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 14:27:38,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-14 14:27:38,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 121 transitions. [2024-10-14 14:27:38,846 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.75625 [2024-10-14 14:27:38,848 INFO L175 Difference]: Start difference. First operand has 44 places, 34 transitions, 77 flow. Second operand 4 states and 121 transitions. [2024-10-14 14:27:38,849 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 49 transitions, 175 flow [2024-10-14 14:27:38,852 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 49 transitions, 170 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-14 14:27:38,854 INFO L231 Difference]: Finished difference. Result has 46 places, 37 transitions, 108 flow [2024-10-14 14:27:38,856 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=108, PETRI_PLACES=46, PETRI_TRANSITIONS=37} [2024-10-14 14:27:38,864 INFO L277 CegarLoopForPetriNet]: 44 programPoint places, 2 predicate places. [2024-10-14 14:27:38,864 INFO L471 AbstractCegarLoop]: Abstraction has has 46 places, 37 transitions, 108 flow [2024-10-14 14:27:38,865 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 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) [2024-10-14 14:27:38,865 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 14:27:38,865 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 14:27:38,865 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 14:27:38,865 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-14 14:27:38,867 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 14:27:38,867 INFO L85 PathProgramCache]: Analyzing trace with hash 774506089, now seen corresponding path program 1 times [2024-10-14 14:27:38,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 14:27:38,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411759149] [2024-10-14 14:27:38,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 14:27:38,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 14:27:38,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:27:39,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 14:27:39,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 14:27:39,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411759149] [2024-10-14 14:27:39,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [411759149] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 14:27:39,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 14:27:39,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 14:27:39,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940314690] [2024-10-14 14:27:39,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 14:27:39,042 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 14:27:39,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 14:27:39,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 14:27:39,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 14:27:39,057 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 40 [2024-10-14 14:27:39,058 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 37 transitions, 108 flow. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 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) [2024-10-14 14:27:39,058 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 14:27:39,058 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 40 [2024-10-14 14:27:39,058 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 14:27:39,207 INFO L124 PetriNetUnfolderBase]: 249/508 cut-off events. [2024-10-14 14:27:39,208 INFO L125 PetriNetUnfolderBase]: For 169/169 co-relation queries the response was YES. [2024-10-14 14:27:39,210 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1186 conditions, 508 events. 249/508 cut-off events. For 169/169 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 2483 event pairs, 15 based on Foata normal form. 26/526 useless extension candidates. Maximal degree in co-relation 1174. Up to 188 conditions per place. [2024-10-14 14:27:39,217 INFO L140 encePairwiseOnDemand]: 34/40 looper letters, 31 selfloop transitions, 8 changer transitions 1/58 dead transitions. [2024-10-14 14:27:39,217 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 58 transitions, 251 flow [2024-10-14 14:27:39,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 14:27:39,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-14 14:27:39,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 152 transitions. [2024-10-14 14:27:39,219 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.76 [2024-10-14 14:27:39,219 INFO L175 Difference]: Start difference. First operand has 46 places, 37 transitions, 108 flow. Second operand 5 states and 152 transitions. [2024-10-14 14:27:39,220 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 58 transitions, 251 flow [2024-10-14 14:27:39,222 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 58 transitions, 241 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-10-14 14:27:39,224 INFO L231 Difference]: Finished difference. Result has 50 places, 40 transitions, 148 flow [2024-10-14 14:27:39,224 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=148, PETRI_PLACES=50, PETRI_TRANSITIONS=40} [2024-10-14 14:27:39,224 INFO L277 CegarLoopForPetriNet]: 44 programPoint places, 6 predicate places. [2024-10-14 14:27:39,225 INFO L471 AbstractCegarLoop]: Abstraction has has 50 places, 40 transitions, 148 flow [2024-10-14 14:27:39,225 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 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) [2024-10-14 14:27:39,225 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 14:27:39,227 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 14:27:39,227 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 14:27:39,228 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-14 14:27:39,229 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 14:27:39,229 INFO L85 PathProgramCache]: Analyzing trace with hash 1014058864, now seen corresponding path program 1 times [2024-10-14 14:27:39,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 14:27:39,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376199568] [2024-10-14 14:27:39,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 14:27:39,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 14:27:39,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:27:39,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 14:27:39,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 14:27:39,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376199568] [2024-10-14 14:27:39,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376199568] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 14:27:39,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 14:27:39,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 14:27:39,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510925224] [2024-10-14 14:27:39,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 14:27:39,422 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 14:27:39,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 14:27:39,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 14:27:39,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-14 14:27:39,429 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 40 [2024-10-14 14:27:39,430 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 40 transitions, 148 flow. Second operand has 6 states, 6 states have (on average 24.0) internal successors, (144), 6 states have internal predecessors, (144), 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) [2024-10-14 14:27:39,430 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 14:27:39,430 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 40 [2024-10-14 14:27:39,430 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 14:27:39,621 INFO L124 PetriNetUnfolderBase]: 174/343 cut-off events. [2024-10-14 14:27:39,622 INFO L125 PetriNetUnfolderBase]: For 352/352 co-relation queries the response was YES. [2024-10-14 14:27:39,623 INFO L83 FinitePrefix]: Finished finitePrefix Result has 942 conditions, 343 events. 174/343 cut-off events. For 352/352 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1280 event pairs, 6 based on Foata normal form. 20/355 useless extension candidates. Maximal degree in co-relation 928. Up to 108 conditions per place. [2024-10-14 14:27:39,626 INFO L140 encePairwiseOnDemand]: 34/40 looper letters, 29 selfloop transitions, 11 changer transitions 1/59 dead transitions. [2024-10-14 14:27:39,627 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 59 transitions, 278 flow [2024-10-14 14:27:39,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 14:27:39,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-14 14:27:39,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 175 transitions. [2024-10-14 14:27:39,630 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7291666666666666 [2024-10-14 14:27:39,630 INFO L175 Difference]: Start difference. First operand has 50 places, 40 transitions, 148 flow. Second operand 6 states and 175 transitions. [2024-10-14 14:27:39,630 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 59 transitions, 278 flow [2024-10-14 14:27:39,633 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 59 transitions, 253 flow, removed 4 selfloop flow, removed 4 redundant places. [2024-10-14 14:27:39,634 INFO L231 Difference]: Finished difference. Result has 53 places, 40 transitions, 162 flow [2024-10-14 14:27:39,634 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=162, PETRI_PLACES=53, PETRI_TRANSITIONS=40} [2024-10-14 14:27:39,635 INFO L277 CegarLoopForPetriNet]: 44 programPoint places, 9 predicate places. [2024-10-14 14:27:39,635 INFO L471 AbstractCegarLoop]: Abstraction has has 53 places, 40 transitions, 162 flow [2024-10-14 14:27:39,635 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.0) internal successors, (144), 6 states have internal predecessors, (144), 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) [2024-10-14 14:27:39,635 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 14:27:39,636 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 14:27:39,636 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 14:27:39,636 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-14 14:27:39,637 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 14:27:39,637 INFO L85 PathProgramCache]: Analyzing trace with hash -1307875689, now seen corresponding path program 1 times [2024-10-14 14:27:39,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 14:27:39,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389174718] [2024-10-14 14:27:39,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 14:27:39,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 14:27:39,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:27:39,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 14:27:39,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 14:27:39,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389174718] [2024-10-14 14:27:39,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1389174718] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 14:27:39,807 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 14:27:39,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 14:27:39,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122259028] [2024-10-14 14:27:39,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 14:27:39,809 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 14:27:39,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 14:27:39,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 14:27:39,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 14:27:39,825 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 40 [2024-10-14 14:27:39,826 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 40 transitions, 162 flow. Second operand has 5 states, 5 states have (on average 24.6) internal successors, (123), 5 states have internal predecessors, (123), 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) [2024-10-14 14:27:39,826 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 14:27:39,826 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 40 [2024-10-14 14:27:39,826 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 14:27:39,952 INFO L124 PetriNetUnfolderBase]: 220/479 cut-off events. [2024-10-14 14:27:39,953 INFO L125 PetriNetUnfolderBase]: For 272/276 co-relation queries the response was YES. [2024-10-14 14:27:39,955 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1120 conditions, 479 events. 220/479 cut-off events. For 272/276 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 2313 event pairs, 120 based on Foata normal form. 8/422 useless extension candidates. Maximal degree in co-relation 1105. Up to 210 conditions per place. [2024-10-14 14:27:39,956 INFO L140 encePairwiseOnDemand]: 35/40 looper letters, 17 selfloop transitions, 2 changer transitions 11/54 dead transitions. [2024-10-14 14:27:39,957 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 54 transitions, 258 flow [2024-10-14 14:27:39,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 14:27:39,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-14 14:27:39,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 141 transitions. [2024-10-14 14:27:39,960 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.705 [2024-10-14 14:27:39,960 INFO L175 Difference]: Start difference. First operand has 53 places, 40 transitions, 162 flow. Second operand 5 states and 141 transitions. [2024-10-14 14:27:39,961 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 54 transitions, 258 flow [2024-10-14 14:27:39,963 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 54 transitions, 194 flow, removed 14 selfloop flow, removed 8 redundant places. [2024-10-14 14:27:39,965 INFO L231 Difference]: Finished difference. Result has 52 places, 40 transitions, 118 flow [2024-10-14 14:27:39,965 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=118, PETRI_PLACES=52, PETRI_TRANSITIONS=40} [2024-10-14 14:27:39,966 INFO L277 CegarLoopForPetriNet]: 44 programPoint places, 8 predicate places. [2024-10-14 14:27:39,966 INFO L471 AbstractCegarLoop]: Abstraction has has 52 places, 40 transitions, 118 flow [2024-10-14 14:27:39,967 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.6) internal successors, (123), 5 states have internal predecessors, (123), 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) [2024-10-14 14:27:39,967 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 14:27:39,967 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 14:27:39,967 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 14:27:39,967 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-14 14:27:39,967 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 14:27:39,968 INFO L85 PathProgramCache]: Analyzing trace with hash 107891617, now seen corresponding path program 2 times [2024-10-14 14:27:39,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 14:27:39,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578823547] [2024-10-14 14:27:39,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 14:27:39,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 14:27:39,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:27:40,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 14:27:40,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 14:27:40,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578823547] [2024-10-14 14:27:40,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1578823547] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 14:27:40,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 14:27:40,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 14:27:40,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162479150] [2024-10-14 14:27:40,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 14:27:40,196 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 14:27:40,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 14:27:40,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 14:27:40,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-14 14:27:40,224 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 40 [2024-10-14 14:27:40,225 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 40 transitions, 118 flow. Second operand has 7 states, 7 states have (on average 20.428571428571427) internal successors, (143), 7 states have internal predecessors, (143), 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) [2024-10-14 14:27:40,225 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 14:27:40,225 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 40 [2024-10-14 14:27:40,225 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 14:27:40,565 INFO L124 PetriNetUnfolderBase]: 493/1011 cut-off events. [2024-10-14 14:27:40,566 INFO L125 PetriNetUnfolderBase]: For 86/86 co-relation queries the response was YES. [2024-10-14 14:27:40,570 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2054 conditions, 1011 events. 493/1011 cut-off events. For 86/86 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 5914 event pairs, 131 based on Foata normal form. 24/961 useless extension candidates. Maximal degree in co-relation 2048. Up to 228 conditions per place. [2024-10-14 14:27:40,572 INFO L140 encePairwiseOnDemand]: 30/40 looper letters, 0 selfloop transitions, 0 changer transitions 93/93 dead transitions. [2024-10-14 14:27:40,572 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 93 transitions, 387 flow [2024-10-14 14:27:40,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-14 14:27:40,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-10-14 14:27:40,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 311 transitions. [2024-10-14 14:27:40,574 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5980769230769231 [2024-10-14 14:27:40,574 INFO L175 Difference]: Start difference. First operand has 52 places, 40 transitions, 118 flow. Second operand 13 states and 311 transitions. [2024-10-14 14:27:40,574 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 93 transitions, 387 flow [2024-10-14 14:27:40,577 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 93 transitions, 365 flow, removed 6 selfloop flow, removed 3 redundant places. [2024-10-14 14:27:40,579 INFO L231 Difference]: Finished difference. Result has 57 places, 0 transitions, 0 flow [2024-10-14 14:27:40,579 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=0, PETRI_PLACES=57, PETRI_TRANSITIONS=0} [2024-10-14 14:27:40,581 INFO L277 CegarLoopForPetriNet]: 44 programPoint places, 13 predicate places. [2024-10-14 14:27:40,581 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 0 transitions, 0 flow [2024-10-14 14:27:40,581 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.428571428571427) internal successors, (143), 7 states have internal predecessors, (143), 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) [2024-10-14 14:27:40,584 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2024-10-14 14:27:40,585 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2024-10-14 14:27:40,585 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2024-10-14 14:27:40,585 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2024-10-14 14:27:40,586 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-14 14:27:40,587 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1] [2024-10-14 14:27:40,592 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-14 14:27:40,593 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-14 14:27:40,599 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 02:27:40 BasicIcfg [2024-10-14 14:27:40,599 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-14 14:27:40,600 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-14 14:27:40,600 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-14 14:27:40,600 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-14 14:27:40,601 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 02:27:37" (3/4) ... [2024-10-14 14:27:40,603 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-14 14:27:40,610 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2024-10-14 14:27:40,610 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2024-10-14 14:27:40,610 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2024-10-14 14:27:40,615 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 35 nodes and edges [2024-10-14 14:27:40,615 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-10-14 14:27:40,615 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-10-14 14:27:40,615 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-14 14:27:40,709 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-14 14:27:40,709 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-14 14:27:40,709 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-14 14:27:40,710 INFO L158 Benchmark]: Toolchain (without parser) took 3999.91ms. Allocated memory was 176.2MB in the beginning and 232.8MB in the end (delta: 56.6MB). Free memory was 118.3MB in the beginning and 171.0MB in the end (delta: -52.7MB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB. [2024-10-14 14:27:40,710 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 176.2MB. Free memory is still 137.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-14 14:27:40,710 INFO L158 Benchmark]: CACSL2BoogieTranslator took 546.03ms. Allocated memory is still 176.2MB. Free memory was 117.8MB in the beginning and 96.2MB in the end (delta: 21.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-10-14 14:27:40,711 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.50ms. Allocated memory is still 176.2MB. Free memory was 96.2MB in the beginning and 94.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-14 14:27:40,711 INFO L158 Benchmark]: Boogie Preprocessor took 40.85ms. Allocated memory is still 176.2MB. Free memory was 94.2MB in the beginning and 92.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-14 14:27:40,711 INFO L158 Benchmark]: RCFGBuilder took 434.76ms. Allocated memory is still 176.2MB. Free memory was 92.1MB in the beginning and 73.2MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-10-14 14:27:40,711 INFO L158 Benchmark]: TraceAbstraction took 2809.09ms. Allocated memory was 176.2MB in the beginning and 232.8MB in the end (delta: 56.6MB). Free memory was 72.7MB in the beginning and 175.2MB in the end (delta: -102.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-14 14:27:40,712 INFO L158 Benchmark]: Witness Printer took 109.76ms. Allocated memory is still 232.8MB. Free memory was 175.2MB in the beginning and 171.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-14 14:27:40,713 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 176.2MB. Free memory is still 137.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 546.03ms. Allocated memory is still 176.2MB. Free memory was 117.8MB in the beginning and 96.2MB in the end (delta: 21.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.50ms. Allocated memory is still 176.2MB. Free memory was 96.2MB in the beginning and 94.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.85ms. Allocated memory is still 176.2MB. Free memory was 94.2MB in the beginning and 92.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 434.76ms. Allocated memory is still 176.2MB. Free memory was 92.1MB in the beginning and 73.2MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 2809.09ms. Allocated memory was 176.2MB in the beginning and 232.8MB in the end (delta: 56.6MB). Free memory was 72.7MB in the beginning and 175.2MB in the end (delta: -102.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 109.76ms. Allocated memory is still 232.8MB. Free memory was 175.2MB in the beginning and 171.0MB 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: 18]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 66 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.7s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 218 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 195 mSDsluCounter, 82 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 66 mSDsCounter, 20 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 416 IncrementalHoareTripleChecker+Invalid, 436 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 20 mSolverCounterUnsat, 16 mSDtfsCounter, 416 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 40 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=162occurred in iteration=3, InterpolantAutomatonStates: 33, 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, 1.0s InterpolantComputationTime, 120 NumberOfCodeBlocks, 120 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 115 ConstructedInterpolants, 0 QuantifiedInterpolants, 385 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-10-14 14:27:40,746 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