./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/weaver/security.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 48c9605d Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/weaver/security.wvr.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 0a3d6a7be4cff77b59978ea166f504665a94bd97447fe28973d9c58d928e868d --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 01:21:00,221 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 01:21:00,299 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-02-08 01:21:00,306 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 01:21:00,307 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 01:21:00,331 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 01:21:00,332 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 01:21:00,332 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 01:21:00,333 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 01:21:00,333 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 01:21:00,333 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 01:21:00,333 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 01:21:00,334 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 01:21:00,334 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 01:21:00,335 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 01:21:00,335 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 01:21:00,335 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 01:21:00,336 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 01:21:00,336 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 01:21:00,336 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 01:21:00,336 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 01:21:00,336 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 01:21:00,336 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 01:21:00,336 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 01:21:00,336 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 01:21:00,336 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 01:21:00,337 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 01:21:00,337 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 01:21:00,337 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 01:21:00,337 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 01:21:00,337 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 01:21:00,337 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 01:21:00,338 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 01:21:00,338 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 01:21:00,338 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 01:21:00,338 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 01:21:00,338 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 01:21:00,338 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 01:21:00,338 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 01:21:00,338 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 01:21:00,339 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 01:21:00,339 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 01:21:00,339 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 01:21:00,339 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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-jdk21/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 -> 0a3d6a7be4cff77b59978ea166f504665a94bd97447fe28973d9c58d928e868d [2025-02-08 01:21:00,616 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 01:21:00,623 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 01:21:00,627 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 01:21:00,628 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 01:21:00,628 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 01:21:00,630 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/security.wvr.c [2025-02-08 01:21:01,897 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/511396cbc/1e5db61d900e496d9edff2b40a42b21e/FLAG3458e1777 [2025-02-08 01:21:02,115 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 01:21:02,116 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/weaver/security.wvr.c [2025-02-08 01:21:02,121 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/511396cbc/1e5db61d900e496d9edff2b40a42b21e/FLAG3458e1777 [2025-02-08 01:21:02,133 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/511396cbc/1e5db61d900e496d9edff2b40a42b21e [2025-02-08 01:21:02,135 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 01:21:02,136 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 01:21:02,137 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 01:21:02,137 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 01:21:02,141 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 01:21:02,141 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 01:21:02" (1/1) ... [2025-02-08 01:21:02,142 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@635713e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:21:02, skipping insertion in model container [2025-02-08 01:21:02,142 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 01:21:02" (1/1) ... [2025-02-08 01:21:02,154 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 01:21:02,317 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/weaver/security.wvr.c[1957,1970] [2025-02-08 01:21:02,322 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 01:21:02,331 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 01:21:02,348 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/weaver/security.wvr.c[1957,1970] [2025-02-08 01:21:02,350 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 01:21:02,367 INFO L204 MainTranslator]: Completed translation [2025-02-08 01:21:02,367 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:21:02 WrapperNode [2025-02-08 01:21:02,368 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 01:21:02,370 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 01:21:02,370 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 01:21:02,370 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 01:21:02,376 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:21:02" (1/1) ... [2025-02-08 01:21:02,383 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:21:02" (1/1) ... [2025-02-08 01:21:02,400 INFO L138 Inliner]: procedures = 20, calls = 9, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 41 [2025-02-08 01:21:02,400 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 01:21:02,401 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 01:21:02,402 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 01:21:02,402 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 01:21:02,408 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:21:02" (1/1) ... [2025-02-08 01:21:02,408 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:21:02" (1/1) ... [2025-02-08 01:21:02,415 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:21:02" (1/1) ... [2025-02-08 01:21:02,429 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]. [2025-02-08 01:21:02,430 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:21:02" (1/1) ... [2025-02-08 01:21:02,430 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:21:02" (1/1) ... [2025-02-08 01:21:02,434 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:21:02" (1/1) ... [2025-02-08 01:21:02,435 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:21:02" (1/1) ... [2025-02-08 01:21:02,436 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:21:02" (1/1) ... [2025-02-08 01:21:02,436 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:21:02" (1/1) ... [2025-02-08 01:21:02,441 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 01:21:02,442 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 01:21:02,442 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 01:21:02,442 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 01:21:02,443 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:21:02" (1/1) ... [2025-02-08 01:21:02,448 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 01:21:02,460 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 01:21:02,473 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-08 01:21:02,480 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-08 01:21:02,501 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 01:21:02,501 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-02-08 01:21:02,501 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-02-08 01:21:02,502 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-02-08 01:21:02,502 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-02-08 01:21:02,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-08 01:21:02,502 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 01:21:02,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 01:21:02,503 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-08 01:21:02,566 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 01:21:02,568 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 01:21:02,757 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-08 01:21:02,757 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 01:21:02,876 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 01:21:02,876 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 01:21:02,877 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 01:21:02 BoogieIcfgContainer [2025-02-08 01:21:02,877 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 01:21:02,879 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 01:21:02,879 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 01:21:02,884 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 01:21:02,885 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 01:21:02" (1/3) ... [2025-02-08 01:21:02,885 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74efbfdb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 01:21:02, skipping insertion in model container [2025-02-08 01:21:02,885 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:21:02" (2/3) ... [2025-02-08 01:21:02,886 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74efbfdb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 01:21:02, skipping insertion in model container [2025-02-08 01:21:02,886 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 01:21:02" (3/3) ... [2025-02-08 01:21:02,887 INFO L128 eAbstractionObserver]: Analyzing ICFG security.wvr.c [2025-02-08 01:21:02,903 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 01:21:02,904 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG security.wvr.c that has 3 procedures, 15 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2025-02-08 01:21:02,905 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-08 01:21:02,942 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-02-08 01:21:02,976 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 21 places, 14 transitions, 42 flow [2025-02-08 01:21:03,007 INFO L124 PetriNetUnfolderBase]: 0/12 cut-off events. [2025-02-08 01:21:03,009 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-02-08 01:21:03,012 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21 conditions, 12 events. 0/12 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 4 event pairs, 0 based on Foata normal form. 0/11 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2025-02-08 01:21:03,012 INFO L82 GeneralOperation]: Start removeDead. Operand has 21 places, 14 transitions, 42 flow [2025-02-08 01:21:03,014 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 18 places, 11 transitions, 34 flow [2025-02-08 01:21:03,024 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 01:21:03,040 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;@80d9917, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 01:21:03,044 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2025-02-08 01:21:03,052 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 01:21:03,053 INFO L124 PetriNetUnfolderBase]: 0/10 cut-off events. [2025-02-08 01:21:03,053 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-02-08 01:21:03,053 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 01:21:03,054 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 01:21:03,054 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-02-08 01:21:03,060 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:21:03,061 INFO L85 PathProgramCache]: Analyzing trace with hash 1518003798, now seen corresponding path program 1 times [2025-02-08 01:21:03,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:21:03,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189823709] [2025-02-08 01:21:03,070 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:21:03,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:21:03,140 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-02-08 01:21:03,188 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-02-08 01:21:03,189 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:21:03,189 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:21:03,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 01:21:03,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:21:03,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189823709] [2025-02-08 01:21:03,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [189823709] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:21:03,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 01:21:03,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 01:21:03,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281367911] [2025-02-08 01:21:03,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:21:03,684 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 01:21:03,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:21:03,710 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 01:21:03,711 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 01:21:03,726 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 14 [2025-02-08 01:21:03,731 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 18 places, 11 transitions, 34 flow. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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) [2025-02-08 01:21:03,732 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 01:21:03,732 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 14 [2025-02-08 01:21:03,733 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 01:21:03,823 INFO L124 PetriNetUnfolderBase]: 7/29 cut-off events. [2025-02-08 01:21:03,824 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2025-02-08 01:21:03,825 INFO L83 FinitePrefix]: Finished finitePrefix Result has 72 conditions, 29 events. 7/29 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 47 event pairs, 0 based on Foata normal form. 1/30 useless extension candidates. Maximal degree in co-relation 42. Up to 10 conditions per place. [2025-02-08 01:21:03,827 INFO L140 encePairwiseOnDemand]: 10/14 looper letters, 12 selfloop transitions, 3 changer transitions 5/21 dead transitions. [2025-02-08 01:21:03,827 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 22 places, 21 transitions, 106 flow [2025-02-08 01:21:03,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 01:21:03,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-08 01:21:03,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 36 transitions. [2025-02-08 01:21:03,844 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5142857142857142 [2025-02-08 01:21:03,845 INFO L175 Difference]: Start difference. First operand has 18 places, 11 transitions, 34 flow. Second operand 5 states and 36 transitions. [2025-02-08 01:21:03,846 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 22 places, 21 transitions, 106 flow [2025-02-08 01:21:03,852 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 18 places, 21 transitions, 90 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-02-08 01:21:03,855 INFO L231 Difference]: Finished difference. Result has 19 places, 11 transitions, 34 flow [2025-02-08 01:21:03,858 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=14, PETRI_DIFFERENCE_MINUEND_FLOW=26, PETRI_DIFFERENCE_MINUEND_PLACES=14, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=11, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=8, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=34, PETRI_PLACES=19, PETRI_TRANSITIONS=11} [2025-02-08 01:21:03,862 INFO L279 CegarLoopForPetriNet]: 18 programPoint places, 1 predicate places. [2025-02-08 01:21:03,864 INFO L471 AbstractCegarLoop]: Abstraction has has 19 places, 11 transitions, 34 flow [2025-02-08 01:21:03,865 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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) [2025-02-08 01:21:03,865 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 01:21:03,865 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 01:21:03,865 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-08 01:21:03,867 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-02-08 01:21:03,868 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:21:03,868 INFO L85 PathProgramCache]: Analyzing trace with hash 360919010, now seen corresponding path program 2 times [2025-02-08 01:21:03,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:21:03,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191683483] [2025-02-08 01:21:03,868 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 01:21:03,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:21:03,884 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 11 statements into 1 equivalence classes. [2025-02-08 01:21:03,896 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-02-08 01:21:03,899 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 01:21:03,899 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:21:04,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 01:21:04,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:21:04,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191683483] [2025-02-08 01:21:04,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [191683483] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:21:04,167 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 01:21:04,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 01:21:04,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779023612] [2025-02-08 01:21:04,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:21:04,168 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 01:21:04,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:21:04,170 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 01:21:04,170 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 01:21:04,171 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 14 [2025-02-08 01:21:04,171 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 19 places, 11 transitions, 34 flow. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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) [2025-02-08 01:21:04,171 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 01:21:04,171 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 14 [2025-02-08 01:21:04,171 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 01:21:04,231 INFO L124 PetriNetUnfolderBase]: 5/19 cut-off events. [2025-02-08 01:21:04,231 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2025-02-08 01:21:04,232 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53 conditions, 19 events. 5/19 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 18 event pairs, 0 based on Foata normal form. 1/20 useless extension candidates. Maximal degree in co-relation 49. Up to 8 conditions per place. [2025-02-08 01:21:04,232 INFO L140 encePairwiseOnDemand]: 10/14 looper letters, 0 selfloop transitions, 0 changer transitions 14/14 dead transitions. [2025-02-08 01:21:04,232 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 20 places, 14 transitions, 68 flow [2025-02-08 01:21:04,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 01:21:04,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-08 01:21:04,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 30 transitions. [2025-02-08 01:21:04,234 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.42857142857142855 [2025-02-08 01:21:04,234 INFO L175 Difference]: Start difference. First operand has 19 places, 11 transitions, 34 flow. Second operand 5 states and 30 transitions. [2025-02-08 01:21:04,234 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 20 places, 14 transitions, 68 flow [2025-02-08 01:21:04,235 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 19 places, 14 transitions, 66 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 01:21:04,235 INFO L231 Difference]: Finished difference. Result has 19 places, 0 transitions, 0 flow [2025-02-08 01:21:04,235 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=14, PETRI_DIFFERENCE_MINUEND_FLOW=26, PETRI_DIFFERENCE_MINUEND_PLACES=15, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=9, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=19, PETRI_TRANSITIONS=0} [2025-02-08 01:21:04,236 INFO L279 CegarLoopForPetriNet]: 18 programPoint places, 1 predicate places. [2025-02-08 01:21:04,236 INFO L471 AbstractCegarLoop]: Abstraction has has 19 places, 0 transitions, 0 flow [2025-02-08 01:21:04,236 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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) [2025-02-08 01:21:04,239 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2025-02-08 01:21:04,239 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2025-02-08 01:21:04,239 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2025-02-08 01:21:04,239 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-08 01:21:04,239 INFO L422 BasicCegarLoop]: Path program histogram: [2] [2025-02-08 01:21:04,246 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-02-08 01:21:04,246 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-08 01:21:04,251 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.02 01:21:04 BasicIcfg [2025-02-08 01:21:04,251 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-08 01:21:04,252 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-08 01:21:04,252 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-08 01:21:04,252 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-08 01:21:04,254 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 01:21:02" (3/4) ... [2025-02-08 01:21:04,256 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-02-08 01:21:04,258 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread1 [2025-02-08 01:21:04,259 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread2 [2025-02-08 01:21:04,263 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 33 nodes and edges [2025-02-08 01:21:04,264 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2025-02-08 01:21:04,265 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2025-02-08 01:21:04,265 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-02-08 01:21:04,333 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-08 01:21:04,333 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-08 01:21:04,333 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-08 01:21:04,335 INFO L158 Benchmark]: Toolchain (without parser) took 2197.61ms. Allocated memory is still 167.8MB. Free memory was 135.0MB in the beginning and 82.8MB in the end (delta: 52.1MB). Peak memory consumption was 55.0MB. Max. memory is 16.1GB. [2025-02-08 01:21:04,336 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 201.3MB. Free memory is still 125.9MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 01:21:04,336 INFO L158 Benchmark]: CACSL2BoogieTranslator took 232.00ms. Allocated memory is still 167.8MB. Free memory was 134.6MB in the beginning and 123.3MB in the end (delta: 11.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 01:21:04,337 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.88ms. Allocated memory is still 167.8MB. Free memory was 123.3MB in the beginning and 122.4MB in the end (delta: 914.0kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 01:21:04,337 INFO L158 Benchmark]: Boogie Preprocessor took 39.64ms. Allocated memory is still 167.8MB. Free memory was 122.4MB in the beginning and 121.1MB in the end (delta: 1.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 01:21:04,338 INFO L158 Benchmark]: IcfgBuilder took 435.40ms. Allocated memory is still 167.8MB. Free memory was 121.1MB in the beginning and 100.7MB in the end (delta: 20.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-08 01:21:04,341 INFO L158 Benchmark]: TraceAbstraction took 1372.50ms. Allocated memory is still 167.8MB. Free memory was 100.3MB in the beginning and 88.5MB in the end (delta: 11.9MB). Peak memory consumption was 13.0MB. Max. memory is 16.1GB. [2025-02-08 01:21:04,341 INFO L158 Benchmark]: Witness Printer took 81.85ms. Allocated memory is still 167.8MB. Free memory was 88.5MB in the beginning and 82.8MB in the end (delta: 5.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 01:21:04,342 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 201.3MB. Free memory is still 125.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 232.00ms. Allocated memory is still 167.8MB. Free memory was 134.6MB in the beginning and 123.3MB in the end (delta: 11.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.88ms. Allocated memory is still 167.8MB. Free memory was 123.3MB in the beginning and 122.4MB in the end (delta: 914.0kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 39.64ms. Allocated memory is still 167.8MB. Free memory was 122.4MB in the beginning and 121.1MB in the end (delta: 1.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * IcfgBuilder took 435.40ms. Allocated memory is still 167.8MB. Free memory was 121.1MB in the beginning and 100.7MB in the end (delta: 20.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1372.50ms. Allocated memory is still 167.8MB. Free memory was 100.3MB in the beginning and 88.5MB in the end (delta: 11.9MB). Peak memory consumption was 13.0MB. Max. memory is 16.1GB. * Witness Printer took 81.85ms. Allocated memory is still 167.8MB. Free memory was 88.5MB in the beginning and 82.8MB in the end (delta: 5.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 76]: 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 5 procedures, 21 locations, 3 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: 1.3s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 18 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 18 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 57 IncrementalHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 0 mSDtfsCounter, 57 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred in iteration=0, InterpolantAutomatonStates: 10, 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, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 92 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-02-08 01:21:04,360 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/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