./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p02.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 551b0097 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/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p02.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-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 64bit --witnessprinter.graph.data.programhash c9237163e2805f66062dc578af6664f7122718fcb3464bd31fd071298f5647b0 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 08:21:51,897 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 08:21:51,931 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-01-09 08:21:51,934 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 08:21:51,934 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 08:21:51,949 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 08:21:51,949 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 08:21:51,949 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 08:21:51,949 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 08:21:51,949 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 08:21:51,949 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 08:21:51,949 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 08:21:51,950 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 08:21:51,950 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 08:21:51,950 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 08:21:51,950 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 08:21:51,950 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 08:21:51,950 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 08:21:51,950 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 08:21:51,950 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 08:21:51,950 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 08:21:51,951 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 08:21:51,951 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 08:21:51,951 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 08:21:51,951 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 08:21:51,951 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 08:21:51,951 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 08:21:51,951 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 08:21:51,951 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 08:21:51,951 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 08:21:51,951 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 08:21:51,951 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 08:21:51,952 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 08:21:51,952 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 08:21:51,952 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 08:21:51,952 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 08:21:51,952 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 08:21:51,952 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 08:21:51,952 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 08:21:51,952 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 08:21:51,952 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 08:21:51,952 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 08:21:51,952 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 08:21:51,952 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 08:21:51,953 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 08:21:51,953 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c9237163e2805f66062dc578af6664f7122718fcb3464bd31fd071298f5647b0 [2025-01-09 08:21:52,160 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 08:21:52,165 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 08:21:52,166 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 08:21:52,167 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 08:21:52,167 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 08:21:52,168 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p02.c [2025-01-09 08:21:53,460 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/b758a8c63/9a7eb00701bd4f789eae1ef854aee80e/FLAG6af27c1c6 [2025-01-09 08:21:53,774 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 08:21:53,775 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p02.c [2025-01-09 08:21:53,783 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/b758a8c63/9a7eb00701bd4f789eae1ef854aee80e/FLAG6af27c1c6 [2025-01-09 08:21:54,038 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/b758a8c63/9a7eb00701bd4f789eae1ef854aee80e [2025-01-09 08:21:54,040 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 08:21:54,042 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 08:21:54,044 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 08:21:54,044 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 08:21:54,047 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 08:21:54,048 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 08:21:54" (1/1) ... [2025-01-09 08:21:54,048 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3641e6de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 08:21:54, skipping insertion in model container [2025-01-09 08:21:54,048 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 08:21:54" (1/1) ... [2025-01-09 08:21:54,074 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 08:21:54,226 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/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p02.c[1259,1272] [2025-01-09 08:21:54,453 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 08:21:54,462 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 08:21:54,473 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/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p02.c[1259,1272] [2025-01-09 08:21:54,570 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 08:21:54,590 INFO L204 MainTranslator]: Completed translation [2025-01-09 08:21:54,591 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 08:21:54 WrapperNode [2025-01-09 08:21:54,591 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 08:21:54,592 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 08:21:54,592 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 08:21:54,592 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 08:21:54,596 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 08:21:54" (1/1) ... [2025-01-09 08:21:54,617 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 08:21:54" (1/1) ... [2025-01-09 08:21:54,768 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 2113 [2025-01-09 08:21:54,769 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 08:21:54,770 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 08:21:54,770 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 08:21:54,770 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 08:21:54,776 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 08:21:54" (1/1) ... [2025-01-09 08:21:54,777 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 08:21:54" (1/1) ... [2025-01-09 08:21:54,799 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 08:21:54" (1/1) ... [2025-01-09 08:21:54,854 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]. [2025-01-09 08:21:54,855 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 08:21:54" (1/1) ... [2025-01-09 08:21:54,855 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 08:21:54" (1/1) ... [2025-01-09 08:21:54,906 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 08:21:54" (1/1) ... [2025-01-09 08:21:54,919 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 08:21:54" (1/1) ... [2025-01-09 08:21:54,987 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 08:21:54" (1/1) ... [2025-01-09 08:21:55,002 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 08:21:54" (1/1) ... [2025-01-09 08:21:55,016 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 08:21:54" (1/1) ... [2025-01-09 08:21:55,055 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 08:21:55,056 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 08:21:55,056 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 08:21:55,056 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 08:21:55,057 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 08:21:54" (1/1) ... [2025-01-09 08:21:55,061 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 08:21:55,069 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 08:21:55,086 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) [2025-01-09 08:21:55,088 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 [2025-01-09 08:21:55,103 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 08:21:55,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-09 08:21:55,104 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 08:21:55,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 08:21:55,299 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 08:21:55,300 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 08:21:57,075 INFO L? ?]: Removed 1324 outVars from TransFormulas that were not future-live. [2025-01-09 08:21:57,075 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 08:21:57,094 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 08:21:57,097 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2025-01-09 08:21:57,098 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 08:21:57 BoogieIcfgContainer [2025-01-09 08:21:57,098 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 08:21:57,100 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 08:21:57,100 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 08:21:57,104 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 08:21:57,104 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 08:21:54" (1/3) ... [2025-01-09 08:21:57,104 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@530c17aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 08:21:57, skipping insertion in model container [2025-01-09 08:21:57,105 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 08:21:54" (2/3) ... [2025-01-09 08:21:57,105 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@530c17aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 08:21:57, skipping insertion in model container [2025-01-09 08:21:57,105 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 08:21:57" (3/3) ... [2025-01-09 08:21:57,106 INFO L128 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_arrays_vsaR_p02.c [2025-01-09 08:21:57,116 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 08:21:57,117 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.vis_arrays_vsaR_p02.c that has 1 procedures, 531 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-01-09 08:21:57,169 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 08:21:57,180 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;@53bf6d6b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 08:21:57,180 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-09 08:21:57,184 INFO L276 IsEmpty]: Start isEmpty. Operand has 531 states, 529 states have (on average 1.4990548204158791) internal successors, (793), 530 states have internal predecessors, (793), 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) [2025-01-09 08:21:57,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2025-01-09 08:21:57,189 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 08:21:57,189 INFO L218 NwaCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 08:21:57,189 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 08:21:57,193 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 08:21:57,194 INFO L85 PathProgramCache]: Analyzing trace with hash 387884158, now seen corresponding path program 1 times [2025-01-09 08:21:57,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 08:21:57,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993822332] [2025-01-09 08:21:57,199 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 08:21:57,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 08:21:57,314 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 41 statements into 1 equivalence classes. [2025-01-09 08:21:57,364 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 41 of 41 statements. [2025-01-09 08:21:57,364 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 08:21:57,364 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 08:21:57,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 08:21:57,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 08:21:57,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993822332] [2025-01-09 08:21:57,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993822332] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 08:21:57,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 08:21:57,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-09 08:21:57,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701222357] [2025-01-09 08:21:57,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 08:21:57,803 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 08:21:57,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 08:21:57,817 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 08:21:57,817 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 08:21:57,821 INFO L87 Difference]: Start difference. First operand has 531 states, 529 states have (on average 1.4990548204158791) internal successors, (793), 530 states have internal predecessors, (793), 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) Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 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) [2025-01-09 08:21:57,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 08:21:57,925 INFO L93 Difference]: Finished difference Result 1007 states and 1507 transitions. [2025-01-09 08:21:57,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 08:21:57,930 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 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) Word has length 41 [2025-01-09 08:21:57,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 08:21:57,940 INFO L225 Difference]: With dead ends: 1007 [2025-01-09 08:21:57,940 INFO L226 Difference]: Without dead ends: 530 [2025-01-09 08:21:57,944 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 08:21:57,948 INFO L435 NwaCegarLoop]: 787 mSDtfsCounter, 0 mSDsluCounter, 1568 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2355 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 08:21:57,950 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2355 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 08:21:57,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 530 states. [2025-01-09 08:21:57,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 530 to 530. [2025-01-09 08:21:57,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 530 states, 529 states have (on average 1.4952741020793952) internal successors, (791), 529 states have internal predecessors, (791), 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) [2025-01-09 08:21:58,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 530 states and 791 transitions. [2025-01-09 08:21:58,002 INFO L78 Accepts]: Start accepts. Automaton has 530 states and 791 transitions. Word has length 41 [2025-01-09 08:21:58,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 08:21:58,002 INFO L471 AbstractCegarLoop]: Abstraction has 530 states and 791 transitions. [2025-01-09 08:21:58,002 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 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) [2025-01-09 08:21:58,003 INFO L276 IsEmpty]: Start isEmpty. Operand 530 states and 791 transitions. [2025-01-09 08:21:58,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2025-01-09 08:21:58,003 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 08:21:58,003 INFO L218 NwaCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 08:21:58,004 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-09 08:21:58,004 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 08:21:58,004 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 08:21:58,004 INFO L85 PathProgramCache]: Analyzing trace with hash -858797603, now seen corresponding path program 1 times [2025-01-09 08:21:58,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 08:21:58,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664585417] [2025-01-09 08:21:58,005 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 08:21:58,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 08:21:58,031 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 42 statements into 1 equivalence classes. [2025-01-09 08:21:58,049 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 42 of 42 statements. [2025-01-09 08:21:58,050 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 08:21:58,050 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 08:21:58,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 08:21:58,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 08:21:58,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664585417] [2025-01-09 08:21:58,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [664585417] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 08:21:58,139 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 08:21:58,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-09 08:21:58,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460483743] [2025-01-09 08:21:58,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 08:21:58,139 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 08:21:58,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 08:21:58,140 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 08:21:58,140 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 08:21:58,140 INFO L87 Difference]: Start difference. First operand 530 states and 791 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 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) [2025-01-09 08:21:58,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 08:21:58,177 INFO L93 Difference]: Finished difference Result 1008 states and 1505 transitions. [2025-01-09 08:21:58,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 08:21:58,177 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 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) Word has length 42 [2025-01-09 08:21:58,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 08:21:58,179 INFO L225 Difference]: With dead ends: 1008 [2025-01-09 08:21:58,179 INFO L226 Difference]: Without dead ends: 532 [2025-01-09 08:21:58,180 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 08:21:58,180 INFO L435 NwaCegarLoop]: 787 mSDtfsCounter, 0 mSDsluCounter, 1564 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2351 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 08:21:58,180 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2351 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 08:21:58,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 532 states. [2025-01-09 08:21:58,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 532 to 532. [2025-01-09 08:21:58,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 532 states, 531 states have (on average 1.4934086629001884) internal successors, (793), 531 states have internal predecessors, (793), 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) [2025-01-09 08:21:58,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 793 transitions. [2025-01-09 08:21:58,194 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 793 transitions. Word has length 42 [2025-01-09 08:21:58,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 08:21:58,194 INFO L471 AbstractCegarLoop]: Abstraction has 532 states and 793 transitions. [2025-01-09 08:21:58,194 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 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) [2025-01-09 08:21:58,194 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 793 transitions. [2025-01-09 08:21:58,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2025-01-09 08:21:58,195 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 08:21:58,195 INFO L218 NwaCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 08:21:58,195 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-09 08:21:58,195 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 08:21:58,195 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 08:21:58,195 INFO L85 PathProgramCache]: Analyzing trace with hash -1950887625, now seen corresponding path program 1 times [2025-01-09 08:21:58,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 08:21:58,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934433529] [2025-01-09 08:21:58,196 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 08:21:58,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 08:21:58,212 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 43 statements into 1 equivalence classes. [2025-01-09 08:21:58,226 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 43 of 43 statements. [2025-01-09 08:21:58,227 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 08:21:58,227 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 08:21:58,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 08:21:58,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 08:21:58,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934433529] [2025-01-09 08:21:58,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934433529] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 08:21:58,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 08:21:58,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 08:21:58,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621354498] [2025-01-09 08:21:58,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 08:21:58,465 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 08:21:58,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 08:21:58,466 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 08:21:58,466 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-01-09 08:21:58,466 INFO L87 Difference]: Start difference. First operand 532 states and 793 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 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) [2025-01-09 08:21:58,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 08:21:58,536 INFO L93 Difference]: Finished difference Result 1014 states and 1512 transitions. [2025-01-09 08:21:58,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 08:21:58,537 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 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) Word has length 43 [2025-01-09 08:21:58,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 08:21:58,539 INFO L225 Difference]: With dead ends: 1014 [2025-01-09 08:21:58,539 INFO L226 Difference]: Without dead ends: 536 [2025-01-09 08:21:58,542 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-01-09 08:21:58,543 INFO L435 NwaCegarLoop]: 783 mSDtfsCounter, 760 mSDsluCounter, 1559 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 760 SdHoareTripleChecker+Valid, 2342 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 08:21:58,544 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [760 Valid, 2342 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 08:21:58,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2025-01-09 08:21:58,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 535. [2025-01-09 08:21:58,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 535 states, 534 states have (on average 1.4906367041198503) internal successors, (796), 534 states have internal predecessors, (796), 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) [2025-01-09 08:21:58,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 796 transitions. [2025-01-09 08:21:58,564 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 796 transitions. Word has length 43 [2025-01-09 08:21:58,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 08:21:58,564 INFO L471 AbstractCegarLoop]: Abstraction has 535 states and 796 transitions. [2025-01-09 08:21:58,564 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 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) [2025-01-09 08:21:58,564 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 796 transitions. [2025-01-09 08:21:58,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2025-01-09 08:21:58,565 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 08:21:58,565 INFO L218 NwaCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 08:21:58,565 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-01-09 08:21:58,565 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 08:21:58,566 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 08:21:58,566 INFO L85 PathProgramCache]: Analyzing trace with hash 1216571104, now seen corresponding path program 1 times [2025-01-09 08:21:58,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 08:21:58,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479980557] [2025-01-09 08:21:58,566 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 08:21:58,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 08:21:58,591 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 44 statements into 1 equivalence classes. [2025-01-09 08:21:58,624 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 44 of 44 statements. [2025-01-09 08:21:58,625 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 08:21:58,625 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 08:21:59,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 08:21:59,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 08:21:59,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479980557] [2025-01-09 08:21:59,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479980557] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 08:21:59,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 08:21:59,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-01-09 08:21:59,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868639440] [2025-01-09 08:21:59,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 08:21:59,153 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-09 08:21:59,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 08:21:59,153 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-09 08:21:59,153 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2025-01-09 08:21:59,153 INFO L87 Difference]: Start difference. First operand 535 states and 796 transitions. Second operand has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 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) [2025-01-09 08:21:59,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 08:21:59,224 INFO L93 Difference]: Finished difference Result 1025 states and 1525 transitions. [2025-01-09 08:21:59,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-09 08:21:59,224 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 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) Word has length 44 [2025-01-09 08:21:59,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 08:21:59,226 INFO L225 Difference]: With dead ends: 1025 [2025-01-09 08:21:59,226 INFO L226 Difference]: Without dead ends: 544 [2025-01-09 08:21:59,226 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2025-01-09 08:21:59,227 INFO L435 NwaCegarLoop]: 778 mSDtfsCounter, 771 mSDsluCounter, 2328 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 771 SdHoareTripleChecker+Valid, 3106 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 08:21:59,227 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [771 Valid, 3106 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 08:21:59,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 544 states. [2025-01-09 08:21:59,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 544 to 539. [2025-01-09 08:21:59,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 539 states, 538 states have (on average 1.4888475836431228) internal successors, (801), 538 states have internal predecessors, (801), 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) [2025-01-09 08:21:59,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 801 transitions. [2025-01-09 08:21:59,235 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 801 transitions. Word has length 44 [2025-01-09 08:21:59,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 08:21:59,235 INFO L471 AbstractCegarLoop]: Abstraction has 539 states and 801 transitions. [2025-01-09 08:21:59,236 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 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) [2025-01-09 08:21:59,236 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 801 transitions. [2025-01-09 08:21:59,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2025-01-09 08:21:59,236 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 08:21:59,237 INFO L218 NwaCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 08:21:59,237 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-01-09 08:21:59,237 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 08:21:59,237 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 08:21:59,237 INFO L85 PathProgramCache]: Analyzing trace with hash 560912804, now seen corresponding path program 1 times [2025-01-09 08:21:59,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 08:21:59,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375942095] [2025-01-09 08:21:59,238 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 08:21:59,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 08:21:59,253 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 44 statements into 1 equivalence classes. [2025-01-09 08:21:59,263 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 44 of 44 statements. [2025-01-09 08:21:59,263 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 08:21:59,263 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 08:21:59,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 08:21:59,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 08:21:59,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375942095] [2025-01-09 08:21:59,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [375942095] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 08:21:59,462 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 08:21:59,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-01-09 08:21:59,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890353616] [2025-01-09 08:21:59,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 08:21:59,462 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-09 08:21:59,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 08:21:59,463 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-09 08:21:59,463 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2025-01-09 08:21:59,463 INFO L87 Difference]: Start difference. First operand 539 states and 801 transitions. Second operand has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 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) [2025-01-09 08:21:59,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 08:21:59,526 INFO L93 Difference]: Finished difference Result 1022 states and 1520 transitions. [2025-01-09 08:21:59,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-09 08:21:59,527 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 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) Word has length 44 [2025-01-09 08:21:59,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 08:21:59,528 INFO L225 Difference]: With dead ends: 1022 [2025-01-09 08:21:59,528 INFO L226 Difference]: Without dead ends: 537 [2025-01-09 08:21:59,529 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2025-01-09 08:21:59,530 INFO L435 NwaCegarLoop]: 775 mSDtfsCounter, 751 mSDsluCounter, 3088 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 751 SdHoareTripleChecker+Valid, 3863 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 08:21:59,530 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [751 Valid, 3863 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 08:21:59,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2025-01-09 08:21:59,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 534. [2025-01-09 08:21:59,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 534 states, 533 states have (on average 1.4896810506566605) internal successors, (794), 533 states have internal predecessors, (794), 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) [2025-01-09 08:21:59,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 794 transitions. [2025-01-09 08:21:59,539 INFO L78 Accepts]: Start accepts. Automaton has 534 states and 794 transitions. Word has length 44 [2025-01-09 08:21:59,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 08:21:59,539 INFO L471 AbstractCegarLoop]: Abstraction has 534 states and 794 transitions. [2025-01-09 08:21:59,539 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 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) [2025-01-09 08:21:59,539 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states and 794 transitions. [2025-01-09 08:21:59,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2025-01-09 08:21:59,540 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 08:21:59,540 INFO L218 NwaCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 08:21:59,540 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-01-09 08:21:59,540 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 08:21:59,540 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 08:21:59,540 INFO L85 PathProgramCache]: Analyzing trace with hash 1978279468, now seen corresponding path program 1 times [2025-01-09 08:21:59,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 08:21:59,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793590835] [2025-01-09 08:21:59,541 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 08:21:59,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 08:21:59,555 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-01-09 08:21:59,564 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-01-09 08:21:59,565 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 08:21:59,565 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 08:21:59,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 08:21:59,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 08:21:59,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793590835] [2025-01-09 08:21:59,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [793590835] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 08:21:59,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 08:21:59,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 08:21:59,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693210854] [2025-01-09 08:21:59,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 08:21:59,657 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 08:21:59,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 08:21:59,657 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 08:21:59,657 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-09 08:21:59,658 INFO L87 Difference]: Start difference. First operand 534 states and 794 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 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) [2025-01-09 08:22:00,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 08:22:00,051 INFO L93 Difference]: Finished difference Result 1108 states and 1643 transitions. [2025-01-09 08:22:00,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 08:22:00,052 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 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) Word has length 45 [2025-01-09 08:22:00,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 08:22:00,054 INFO L225 Difference]: With dead ends: 1108 [2025-01-09 08:22:00,054 INFO L226 Difference]: Without dead ends: 628 [2025-01-09 08:22:00,055 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2025-01-09 08:22:00,055 INFO L435 NwaCegarLoop]: 595 mSDtfsCounter, 1011 mSDsluCounter, 1187 mSDsCounter, 0 mSdLazyCounter, 579 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1011 SdHoareTripleChecker+Valid, 1782 SdHoareTripleChecker+Invalid, 580 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 579 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-01-09 08:22:00,055 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1011 Valid, 1782 Invalid, 580 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 579 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-01-09 08:22:00,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 628 states. [2025-01-09 08:22:00,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 628 to 542. [2025-01-09 08:22:00,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 542 states, 541 states have (on average 1.4861367837338262) internal successors, (804), 541 states have internal predecessors, (804), 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) [2025-01-09 08:22:00,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 542 states to 542 states and 804 transitions. [2025-01-09 08:22:00,064 INFO L78 Accepts]: Start accepts. Automaton has 542 states and 804 transitions. Word has length 45 [2025-01-09 08:22:00,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 08:22:00,064 INFO L471 AbstractCegarLoop]: Abstraction has 542 states and 804 transitions. [2025-01-09 08:22:00,064 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 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) [2025-01-09 08:22:00,065 INFO L276 IsEmpty]: Start isEmpty. Operand 542 states and 804 transitions. [2025-01-09 08:22:00,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2025-01-09 08:22:00,065 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 08:22:00,065 INFO L218 NwaCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 08:22:00,065 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-01-09 08:22:00,065 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 08:22:00,066 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 08:22:00,066 INFO L85 PathProgramCache]: Analyzing trace with hash 1772973075, now seen corresponding path program 1 times [2025-01-09 08:22:00,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 08:22:00,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645181105] [2025-01-09 08:22:00,066 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 08:22:00,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 08:22:00,080 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-01-09 08:22:00,091 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-01-09 08:22:00,091 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 08:22:00,091 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-09 08:22:00,091 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-09 08:22:00,099 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-01-09 08:22:00,140 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-01-09 08:22:00,140 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 08:22:00,140 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-09 08:22:00,213 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-09 08:22:00,218 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-01-09 08:22:00,219 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-01-09 08:22:00,220 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-01-09 08:22:00,227 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2025-01-09 08:22:00,311 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-01-09 08:22:00,319 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.01 08:22:00 BoogieIcfgContainer [2025-01-09 08:22:00,319 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-01-09 08:22:00,320 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-01-09 08:22:00,320 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-01-09 08:22:00,320 INFO L274 PluginConnector]: Witness Printer initialized [2025-01-09 08:22:00,323 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 08:21:57" (3/4) ... [2025-01-09 08:22:00,324 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-01-09 08:22:00,325 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-01-09 08:22:00,325 INFO L158 Benchmark]: Toolchain (without parser) took 6283.11ms. Allocated memory was 142.6MB in the beginning and 402.7MB in the end (delta: 260.0MB). Free memory was 104.1MB in the beginning and 316.9MB in the end (delta: -212.8MB). Peak memory consumption was 46.0MB. Max. memory is 16.1GB. [2025-01-09 08:22:00,326 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 201.3MB. Free memory is still 120.4MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 08:22:00,326 INFO L158 Benchmark]: CACSL2BoogieTranslator took 547.75ms. Allocated memory is still 142.6MB. Free memory was 103.8MB in the beginning and 60.6MB in the end (delta: 43.2MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2025-01-09 08:22:00,326 INFO L158 Benchmark]: Boogie Procedure Inliner took 177.29ms. Allocated memory is still 142.6MB. Free memory was 60.6MB in the beginning and 68.6MB in the end (delta: -8.0MB). Peak memory consumption was 53.9MB. Max. memory is 16.1GB. [2025-01-09 08:22:00,326 INFO L158 Benchmark]: Boogie Preprocessor took 285.30ms. Allocated memory is still 142.6MB. Free memory was 68.6MB in the beginning and 72.3MB in the end (delta: -3.7MB). Peak memory consumption was 43.7MB. Max. memory is 16.1GB. [2025-01-09 08:22:00,326 INFO L158 Benchmark]: RCFGBuilder took 2042.19ms. Allocated memory was 142.6MB in the beginning and 285.2MB in the end (delta: 142.6MB). Free memory was 72.3MB in the beginning and 76.4MB in the end (delta: -4.1MB). Peak memory consumption was 148.5MB. Max. memory is 16.1GB. [2025-01-09 08:22:00,326 INFO L158 Benchmark]: TraceAbstraction took 3219.67ms. Allocated memory was 285.2MB in the beginning and 402.7MB in the end (delta: 117.4MB). Free memory was 76.4MB in the beginning and 316.9MB in the end (delta: -240.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-01-09 08:22:00,334 INFO L158 Benchmark]: Witness Printer took 4.99ms. Allocated memory is still 402.7MB. Free memory was 316.9MB in the beginning and 316.9MB in the end (delta: 22.9kB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 08:22:00,335 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 201.3MB. Free memory is still 120.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 547.75ms. Allocated memory is still 142.6MB. Free memory was 103.8MB in the beginning and 60.6MB in the end (delta: 43.2MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 177.29ms. Allocated memory is still 142.6MB. Free memory was 60.6MB in the beginning and 68.6MB in the end (delta: -8.0MB). Peak memory consumption was 53.9MB. Max. memory is 16.1GB. * Boogie Preprocessor took 285.30ms. Allocated memory is still 142.6MB. Free memory was 68.6MB in the beginning and 72.3MB in the end (delta: -3.7MB). Peak memory consumption was 43.7MB. Max. memory is 16.1GB. * RCFGBuilder took 2042.19ms. Allocated memory was 142.6MB in the beginning and 285.2MB in the end (delta: 142.6MB). Free memory was 72.3MB in the beginning and 76.4MB in the end (delta: -4.1MB). Peak memory consumption was 148.5MB. Max. memory is 16.1GB. * TraceAbstraction took 3219.67ms. Allocated memory was 285.2MB in the beginning and 402.7MB in the end (delta: 117.4MB). Free memory was 76.4MB in the beginning and 316.9MB in the end (delta: -240.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 4.99ms. Allocated memory is still 402.7MB. Free memory was 316.9MB in the beginning and 316.9MB in the end (delta: 22.9kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 21]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of bitwiseAnd at line 165. Possible FailurePath: [L26] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L27] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L29] const SORT_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 5); [L30] const SORT_3 msb_SORT_3 = (SORT_3)1 << (5 - 1); [L32] const SORT_5 mask_SORT_5 = (SORT_5)-1 >> (sizeof(SORT_5) * 8 - 12); [L33] const SORT_5 msb_SORT_5 = (SORT_5)1 << (12 - 1); [L35] const SORT_45 mask_SORT_45 = (SORT_45)-1 >> (sizeof(SORT_45) * 8 - 3); [L36] const SORT_45 msb_SORT_45 = (SORT_45)1 << (3 - 1); [L38] const SORT_86 mask_SORT_86 = (SORT_86)-1 >> (sizeof(SORT_86) * 8 - 4); [L39] const SORT_86 msb_SORT_86 = (SORT_86)1 << (4 - 1); [L41] const SORT_143 mask_SORT_143 = (SORT_143)-1 >> (sizeof(SORT_143) * 8 - 32); [L42] const SORT_143 msb_SORT_143 = (SORT_143)1 << (32 - 1); [L44] const SORT_167 mask_SORT_167 = (SORT_167)-1 >> (sizeof(SORT_167) * 8 - 2); [L45] const SORT_167 msb_SORT_167 = (SORT_167)1 << (2 - 1); [L47] const SORT_3 var_7 = 0; [L48] const SORT_1 var_11 = 0; [L49] const SORT_1 var_20 = 1; [L50] const SORT_5 var_32 = 0; [L51] const SORT_45 var_46 = 0; [L52] const SORT_45 var_50 = 2; [L53] const SORT_45 var_54 = 1; [L54] const SORT_45 var_59 = 4; [L55] const SORT_45 var_61 = 5; [L56] const SORT_45 var_65 = 3; [L57] const SORT_3 var_73 = 2; [L58] const SORT_45 var_103 = 7; [L59] const SORT_45 var_108 = 6; [L60] const SORT_143 var_145 = 0; [L61] const SORT_3 var_176 = 31; [L63] SORT_1 input_2; [L64] SORT_3 input_4; [L65] SORT_5 input_6; [L66] SORT_3 input_164; [L67] SORT_3 input_165; [L68] SORT_3 input_166; [L69] SORT_3 input_175; [L70] SORT_3 input_185; [L71] SORT_3 input_186; [L72] SORT_3 input_187; [L73] SORT_3 input_190; [L74] SORT_3 input_209; [L75] SORT_3 input_210; [L76] SORT_3 input_211; [L77] SORT_3 input_214; [L78] SORT_3 input_216; [L79] SORT_167 input_230; [L80] SORT_167 input_231; [L81] SORT_167 input_232; [L83] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 VAL [mask_SORT_167=3, mask_SORT_1=1, mask_SORT_3=31, mask_SORT_45=7, mask_SORT_5=4095, mask_SORT_86=15, var_103=7, var_108=6, var_11=0, var_145=0, var_176=31, var_20=1, var_32=0, var_46=0, var_50=2, var_54=1, var_59=4, var_61=5, var_65=3, var_73=2, var_7=0] [L83] SORT_3 state_8 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L84] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 VAL [mask_SORT_167=3, mask_SORT_1=1, mask_SORT_3=31, mask_SORT_45=7, mask_SORT_5=4095, mask_SORT_86=15, var_103=7, var_108=6, var_11=0, var_145=0, var_176=31, var_20=1, var_32=0, var_46=0, var_50=2, var_54=1, var_59=4, var_61=5, var_65=3, var_73=2, var_7=0] [L84] SORT_3 state_13 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L85] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 VAL [mask_SORT_167=3, mask_SORT_1=1, mask_SORT_3=31, mask_SORT_45=7, mask_SORT_5=4095, mask_SORT_86=15, var_103=7, var_108=6, var_11=0, var_145=0, var_176=31, var_20=1, var_32=0, var_46=0, var_50=2, var_54=1, var_59=4, var_61=5, var_65=3, var_73=2, var_7=0] [L85] SORT_3 state_24 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L86] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 VAL [mask_SORT_167=3, mask_SORT_1=1, mask_SORT_3=31, mask_SORT_45=7, mask_SORT_5=4095, mask_SORT_86=15, var_103=7, var_108=6, var_11=0, var_145=0, var_176=31, var_20=1, var_32=0, var_46=0, var_50=2, var_54=1, var_59=4, var_61=5, var_65=3, var_73=2, var_7=0] [L86] SORT_3 state_26 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L87] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 VAL [mask_SORT_167=3, mask_SORT_1=1, mask_SORT_3=31, mask_SORT_45=7, mask_SORT_5=4095, mask_SORT_86=15, var_103=7, var_108=6, var_11=0, var_145=0, var_176=31, var_20=1, var_32=0, var_46=0, var_50=2, var_54=1, var_59=4, var_61=5, var_65=3, var_73=2, var_7=0] [L87] SORT_3 state_28 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L88] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_167=3, mask_SORT_1=1, mask_SORT_3=31, mask_SORT_45=7, mask_SORT_5=4095, mask_SORT_86=15, var_103=7, var_108=6, var_11=0, var_145=0, var_176=31, var_20=1, var_32=0, var_46=0, var_50=2, var_54=1, var_59=4, var_61=5, var_65=3, var_73=2, var_7=0] [L88] SORT_1 state_30 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L89] EXPR __VERIFIER_nondet_ushort() & mask_SORT_5 VAL [mask_SORT_167=3, mask_SORT_1=1, mask_SORT_3=31, mask_SORT_45=7, mask_SORT_86=15, var_103=7, var_108=6, var_11=0, var_145=0, var_176=31, var_20=1, var_32=0, var_46=0, var_50=2, var_54=1, var_59=4, var_61=5, var_65=3, var_73=2, var_7=0] [L89] SORT_5 state_33 = __VERIFIER_nondet_ushort() & mask_SORT_5; [L90] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 VAL [mask_SORT_167=3, mask_SORT_1=1, mask_SORT_3=31, mask_SORT_45=7, mask_SORT_86=15, var_103=7, var_108=6, var_11=0, var_145=0, var_176=31, var_20=1, var_32=0, var_46=0, var_50=2, var_54=1, var_59=4, var_61=5, var_65=3, var_73=2, var_7=0] [L90] SORT_3 state_35 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L91] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 VAL [mask_SORT_167=3, mask_SORT_1=1, mask_SORT_3=31, mask_SORT_45=7, mask_SORT_86=15, var_103=7, var_108=6, var_11=0, var_145=0, var_176=31, var_20=1, var_32=0, var_46=0, var_50=2, var_54=1, var_59=4, var_61=5, var_65=3, var_73=2, var_7=0] [L91] SORT_3 state_37 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L92] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 VAL [mask_SORT_167=3, mask_SORT_1=1, mask_SORT_3=31, mask_SORT_45=7, mask_SORT_86=15, var_103=7, var_108=6, var_11=0, var_145=0, var_176=31, var_20=1, var_32=0, var_46=0, var_50=2, var_54=1, var_59=4, var_61=5, var_65=3, var_73=2, var_7=0] [L92] SORT_3 state_39 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L93] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 VAL [mask_SORT_167=3, mask_SORT_1=1, mask_SORT_3=31, mask_SORT_45=7, mask_SORT_86=15, var_103=7, var_108=6, var_11=0, var_145=0, var_176=31, var_20=1, var_32=0, var_46=0, var_50=2, var_54=1, var_59=4, var_61=5, var_65=3, var_73=2, var_7=0] [L93] SORT_3 state_41 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L94] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 VAL [mask_SORT_167=3, mask_SORT_1=1, mask_SORT_3=31, mask_SORT_45=7, mask_SORT_86=15, var_103=7, var_108=6, var_11=0, var_145=0, var_176=31, var_20=1, var_32=0, var_46=0, var_50=2, var_54=1, var_59=4, var_61=5, var_65=3, var_73=2, var_7=0] [L94] SORT_3 state_43 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L95] EXPR __VERIFIER_nondet_uchar() & mask_SORT_45 VAL [mask_SORT_167=3, mask_SORT_1=1, mask_SORT_3=31, mask_SORT_45=7, mask_SORT_86=15, var_103=7, var_108=6, var_11=0, var_145=0, var_176=31, var_20=1, var_32=0, var_46=0, var_50=2, var_54=1, var_59=4, var_61=5, var_65=3, var_73=2, var_7=0] [L95] SORT_45 state_47 = __VERIFIER_nondet_uchar() & mask_SORT_45; [L97] SORT_3 init_9_arg_1 = var_7; [L98] state_8 = init_9_arg_1 [L99] SORT_3 init_14_arg_1 = var_7; [L100] state_13 = init_14_arg_1 [L101] SORT_3 init_25_arg_1 = var_7; [L102] state_24 = init_25_arg_1 [L103] SORT_3 init_27_arg_1 = var_7; [L104] state_26 = init_27_arg_1 [L105] SORT_3 init_29_arg_1 = var_7; [L106] state_28 = init_29_arg_1 [L107] SORT_1 init_31_arg_1 = var_11; [L108] state_30 = init_31_arg_1 [L109] SORT_5 init_34_arg_1 = var_32; [L110] state_33 = init_34_arg_1 [L111] SORT_3 init_36_arg_1 = var_7; [L112] state_35 = init_36_arg_1 [L113] SORT_3 init_38_arg_1 = var_7; [L114] state_37 = init_38_arg_1 [L115] SORT_3 init_40_arg_1 = var_7; [L116] state_39 = init_40_arg_1 [L117] SORT_3 init_42_arg_1 = var_7; [L118] state_41 = init_42_arg_1 [L119] SORT_3 init_44_arg_1 = var_7; [L120] state_43 = init_44_arg_1 [L121] SORT_45 init_48_arg_1 = var_46; [L122] state_47 = init_48_arg_1 VAL [mask_SORT_167=3, mask_SORT_1=1, mask_SORT_3=31, mask_SORT_45=7, mask_SORT_86=15, state_13=0, state_24=0, state_26=0, state_28=0, state_30=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_47=0, state_8=0, var_103=7, var_108=6, var_11=0, var_145=0, var_176=31, var_20=1, var_46=0, var_50=2, var_54=1, var_59=4, var_61=5, var_65=3, var_73=2, var_7=0] [L125] input_2 = __VERIFIER_nondet_uchar() [L126] input_4 = __VERIFIER_nondet_uchar() [L127] input_6 = __VERIFIER_nondet_ushort() [L128] input_164 = __VERIFIER_nondet_uchar() [L129] input_165 = __VERIFIER_nondet_uchar() [L130] input_166 = __VERIFIER_nondet_uchar() [L131] input_175 = __VERIFIER_nondet_uchar() [L132] input_185 = __VERIFIER_nondet_uchar() [L133] input_186 = __VERIFIER_nondet_uchar() [L134] input_187 = __VERIFIER_nondet_uchar() [L135] input_190 = __VERIFIER_nondet_uchar() [L136] input_209 = __VERIFIER_nondet_uchar() [L137] input_210 = __VERIFIER_nondet_uchar() [L138] input_211 = __VERIFIER_nondet_uchar() [L139] input_214 = __VERIFIER_nondet_uchar() [L140] input_216 = __VERIFIER_nondet_uchar() [L141] input_230 = __VERIFIER_nondet_uchar() [L142] input_231 = __VERIFIER_nondet_uchar() [L143] input_232 = __VERIFIER_nondet_uchar() [L146] SORT_3 var_10_arg_0 = state_8; [L147] SORT_1 var_10 = var_10_arg_0 >> 0; VAL [mask_SORT_167=3, mask_SORT_1=1, mask_SORT_3=31, mask_SORT_45=7, mask_SORT_86=15, state_13=0, state_24=0, state_26=0, state_28=0, state_30=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_47=0, state_8=0, var_103=7, var_108=6, var_10=0, var_11=0, var_145=0, var_176=31, var_20=1, var_46=0, var_50=2, var_54=1, var_59=4, var_61=5, var_65=3, var_73=2, var_7=0] [L148] EXPR var_10 & mask_SORT_1 VAL [mask_SORT_167=3, mask_SORT_1=1, mask_SORT_3=31, mask_SORT_45=7, mask_SORT_86=15, state_13=0, state_24=0, state_26=0, state_28=0, state_30=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_47=0, state_8=0, var_103=7, var_108=6, var_11=0, var_145=0, var_176=31, var_20=1, var_46=0, var_50=2, var_54=1, var_59=4, var_61=5, var_65=3, var_73=2, var_7=0] [L148] var_10 = var_10 & mask_SORT_1 [L149] SORT_1 var_12_arg_0 = var_10; [L150] SORT_1 var_12_arg_1 = var_11; [L151] SORT_1 var_12 = var_12_arg_0 == var_12_arg_1; [L152] SORT_3 var_15_arg_0 = state_13; [L153] SORT_1 var_15 = var_15_arg_0 >> 0; VAL [mask_SORT_167=3, mask_SORT_1=1, mask_SORT_3=31, mask_SORT_45=7, mask_SORT_86=15, state_13=0, state_24=0, state_26=0, state_28=0, state_30=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_47=0, state_8=0, var_103=7, var_108=6, var_11=0, var_12=1, var_145=0, var_15=0, var_176=31, var_20=1, var_46=0, var_50=2, var_54=1, var_59=4, var_61=5, var_65=3, var_73=2, var_7=0] [L154] EXPR var_15 & mask_SORT_1 VAL [mask_SORT_167=3, mask_SORT_1=1, mask_SORT_3=31, mask_SORT_45=7, mask_SORT_86=15, state_13=0, state_24=0, state_26=0, state_28=0, state_30=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_47=0, state_8=0, var_103=7, var_108=6, var_11=0, var_12=1, var_145=0, var_176=31, var_20=1, var_46=0, var_50=2, var_54=1, var_59=4, var_61=5, var_65=3, var_73=2, var_7=0] [L154] var_15 = var_15 & mask_SORT_1 [L155] SORT_1 var_16_arg_0 = var_15; [L156] SORT_1 var_16_arg_1 = var_11; [L157] SORT_1 var_16 = var_16_arg_0 == var_16_arg_1; [L158] SORT_1 var_17_arg_0 = var_12; [L159] SORT_1 var_17_arg_1 = var_16; VAL [mask_SORT_167=3, mask_SORT_1=1, mask_SORT_3=31, mask_SORT_45=7, mask_SORT_86=15, state_13=0, state_24=0, state_26=0, state_28=0, state_30=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_47=0, state_8=0, var_103=7, var_108=6, var_11=0, var_145=0, var_176=31, var_17_arg_0=1, var_17_arg_1=1, var_20=1, var_46=0, var_50=2, var_54=1, var_59=4, var_61=5, var_65=3, var_73=2, var_7=0] [L160] EXPR var_17_arg_0 & var_17_arg_1 VAL [mask_SORT_167=3, mask_SORT_1=1, mask_SORT_3=31, mask_SORT_45=7, mask_SORT_86=15, state_13=0, state_24=0, state_26=0, state_28=0, state_30=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_47=0, state_8=0, var_103=7, var_108=6, var_11=0, var_145=0, var_176=31, var_20=1, var_46=0, var_50=2, var_54=1, var_59=4, var_61=5, var_65=3, var_73=2, var_7=0] [L160] SORT_1 var_17 = var_17_arg_0 & var_17_arg_1; [L161] SORT_1 var_21_arg_0 = var_17; [L162] SORT_1 var_21 = ~var_21_arg_0; [L163] SORT_1 var_22_arg_0 = var_20; [L164] SORT_1 var_22_arg_1 = var_21; VAL [mask_SORT_167=3, mask_SORT_1=1, mask_SORT_3=31, mask_SORT_45=7, mask_SORT_86=15, state_13=0, state_24=0, state_26=0, state_28=0, state_30=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_47=0, state_8=0, var_103=7, var_108=6, var_11=0, var_145=0, var_176=31, var_20=1, var_22_arg_0=1, var_22_arg_1=-2, var_46=0, var_50=2, var_54=1, var_59=4, var_61=5, var_65=3, var_73=2, var_7=0] [L165] EXPR var_22_arg_0 & var_22_arg_1 VAL [mask_SORT_167=3, mask_SORT_1=1, mask_SORT_3=31, mask_SORT_45=7, mask_SORT_86=15, state_13=0, state_24=0, state_26=0, state_28=0, state_30=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_47=0, state_8=0, var_103=7, var_108=6, var_11=0, var_145=0, var_176=31, var_20=1, var_46=0, var_50=2, var_54=1, var_59=4, var_61=5, var_65=3, var_73=2, var_7=0] [L165] SORT_1 var_22 = var_22_arg_0 & var_22_arg_1; [L166] EXPR var_22 & mask_SORT_1 VAL [mask_SORT_167=3, mask_SORT_1=1, mask_SORT_3=31, mask_SORT_45=7, mask_SORT_86=15, state_13=0, state_24=0, state_26=0, state_28=0, state_30=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_47=0, state_8=0, var_103=7, var_108=6, var_11=0, var_145=0, var_176=31, var_20=1, var_46=0, var_50=2, var_54=1, var_59=4, var_61=5, var_65=3, var_73=2, var_7=0] [L166] var_22 = var_22 & mask_SORT_1 [L167] SORT_1 bad_23_arg_0 = var_22; [L168] CALL __VERIFIER_assert(!(bad_23_arg_0)) [L21] COND TRUE !(cond) [L21] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 531 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.1s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3293 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3293 mSDsluCounter, 15799 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 11294 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 743 IncrementalHoareTripleChecker+Invalid, 748 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 4505 mSDtfsCounter, 743 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 42 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=542occurred in iteration=6, InterpolantAutomatonStates: 32, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 95 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 304 NumberOfCodeBlocks, 304 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 253 ConstructedInterpolants, 0 QuantifiedInterpolants, 754 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2025-01-09 08:22:00,360 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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p02.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.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 64bit --witnessprinter.graph.data.programhash c9237163e2805f66062dc578af6664f7122718fcb3464bd31fd071298f5647b0 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 08:22:02,343 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 08:22:02,411 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2025-01-09 08:22:02,415 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 08:22:02,415 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 08:22:02,461 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 08:22:02,466 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 08:22:02,466 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 08:22:02,467 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 08:22:02,467 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 08:22:02,467 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 08:22:02,467 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 08:22:02,467 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 08:22:02,469 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 08:22:02,475 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 08:22:02,475 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 08:22:02,476 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 08:22:02,476 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 08:22:02,476 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 08:22:02,476 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 08:22:02,477 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 08:22:02,477 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-01-09 08:22:02,477 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-01-09 08:22:02,477 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-01-09 08:22:02,478 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 08:22:02,478 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 08:22:02,478 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 08:22:02,478 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 08:22:02,478 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 08:22:02,478 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 08:22:02,478 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 08:22:02,479 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 08:22:02,479 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 08:22:02,481 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 08:22:02,482 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 08:22:02,482 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 08:22:02,482 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 08:22:02,482 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 08:22:02,482 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 08:22:02,482 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 08:22:02,482 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 08:22:02,482 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-01-09 08:22:02,482 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-01-09 08:22:02,482 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 08:22:02,482 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 08:22:02,482 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 08:22:02,482 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 08:22:02,482 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c9237163e2805f66062dc578af6664f7122718fcb3464bd31fd071298f5647b0 [2025-01-09 08:22:02,760 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 08:22:02,766 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 08:22:02,767 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 08:22:02,768 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 08:22:02,768 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 08:22:02,769 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p02.c [2025-01-09 08:22:03,906 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/f1c3825de/fbc8cbb5f0834bac838cc93dd1f0aba4/FLAG882335037 [2025-01-09 08:22:04,178 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 08:22:04,178 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p02.c [2025-01-09 08:22:04,196 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/f1c3825de/fbc8cbb5f0834bac838cc93dd1f0aba4/FLAG882335037 [2025-01-09 08:22:04,487 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/f1c3825de/fbc8cbb5f0834bac838cc93dd1f0aba4 [2025-01-09 08:22:04,489 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 08:22:04,491 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 08:22:04,491 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 08:22:04,491 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 08:22:04,495 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 08:22:04,495 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 08:22:04" (1/1) ... [2025-01-09 08:22:04,495 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f1bb135 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 08:22:04, skipping insertion in model container [2025-01-09 08:22:04,496 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 08:22:04" (1/1) ... [2025-01-09 08:22:04,533 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 08:22:04,629 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/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p02.c[1259,1272] [2025-01-09 08:22:04,836 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 08:22:04,845 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 08:22:04,852 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/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p02.c[1259,1272] [2025-01-09 08:22:04,909 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 08:22:04,918 INFO L204 MainTranslator]: Completed translation [2025-01-09 08:22:04,920 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 08:22:04 WrapperNode [2025-01-09 08:22:04,920 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 08:22:04,921 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 08:22:04,921 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 08:22:04,921 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 08:22:04,925 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 08:22:04" (1/1) ... [2025-01-09 08:22:04,955 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 08:22:04" (1/1) ... [2025-01-09 08:22:05,000 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1071 [2025-01-09 08:22:05,000 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 08:22:05,001 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 08:22:05,001 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 08:22:05,001 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 08:22:05,013 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 08:22:04" (1/1) ... [2025-01-09 08:22:05,014 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 08:22:04" (1/1) ... [2025-01-09 08:22:05,023 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 08:22:04" (1/1) ... [2025-01-09 08:22:05,073 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]. [2025-01-09 08:22:05,076 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 08:22:04" (1/1) ... [2025-01-09 08:22:05,077 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 08:22:04" (1/1) ... [2025-01-09 08:22:05,097 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 08:22:04" (1/1) ... [2025-01-09 08:22:05,099 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 08:22:04" (1/1) ... [2025-01-09 08:22:05,106 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 08:22:04" (1/1) ... [2025-01-09 08:22:05,108 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 08:22:04" (1/1) ... [2025-01-09 08:22:05,115 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 08:22:04" (1/1) ... [2025-01-09 08:22:05,124 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 08:22:05,124 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 08:22:05,124 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 08:22:05,125 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 08:22:05,125 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 08:22:04" (1/1) ... [2025-01-09 08:22:05,129 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 08:22:05,137 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 08:22:05,148 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) [2025-01-09 08:22:05,153 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 [2025-01-09 08:22:05,170 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 08:22:05,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-01-09 08:22:05,171 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 08:22:05,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 08:22:05,396 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 08:22:05,397 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 08:22:06,537 INFO L? ?]: Removed 65 outVars from TransFormulas that were not future-live. [2025-01-09 08:22:06,538 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 08:22:06,543 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 08:22:06,543 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2025-01-09 08:22:06,543 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 08:22:06 BoogieIcfgContainer [2025-01-09 08:22:06,543 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 08:22:06,545 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 08:22:06,545 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 08:22:06,549 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 08:22:06,549 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 08:22:04" (1/3) ... [2025-01-09 08:22:06,550 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14e58e84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 08:22:06, skipping insertion in model container [2025-01-09 08:22:06,550 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 08:22:04" (2/3) ... [2025-01-09 08:22:06,551 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14e58e84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 08:22:06, skipping insertion in model container [2025-01-09 08:22:06,552 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 08:22:06" (3/3) ... [2025-01-09 08:22:06,552 INFO L128 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_arrays_vsaR_p02.c [2025-01-09 08:22:06,562 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 08:22:06,563 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.vis_arrays_vsaR_p02.c that has 1 procedures, 10 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-01-09 08:22:06,595 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 08:22:06,603 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;@3b8d521a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 08:22:06,603 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-09 08:22:06,607 INFO L276 IsEmpty]: Start isEmpty. Operand has 10 states, 8 states have (on average 1.375) internal successors, (11), 9 states have internal predecessors, (11), 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) [2025-01-09 08:22:06,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2025-01-09 08:22:06,609 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 08:22:06,610 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2025-01-09 08:22:06,611 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 08:22:06,614 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 08:22:06,614 INFO L85 PathProgramCache]: Analyzing trace with hash 28694789, now seen corresponding path program 1 times [2025-01-09 08:22:06,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 08:22:06,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [523677819] [2025-01-09 08:22:06,624 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 08:22:06,624 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 08:22:06,624 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 08:22:06,627 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 08:22:06,633 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-01-09 08:22:06,834 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-01-09 08:22:06,852 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-01-09 08:22:06,852 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 08:22:06,852 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 08:22:06,856 INFO L256 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 28 conjuncts are in the unsatisfiable core [2025-01-09 08:22:06,862 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 08:22:07,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 08:22:07,014 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 08:22:07,014 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 08:22:07,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [523677819] [2025-01-09 08:22:07,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [523677819] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 08:22:07,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 08:22:07,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-09 08:22:07,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81848540] [2025-01-09 08:22:07,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 08:22:07,018 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 08:22:07,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 08:22:07,029 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 08:22:07,029 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 08:22:07,031 INFO L87 Difference]: Start difference. First operand has 10 states, 8 states have (on average 1.375) internal successors, (11), 9 states have internal predecessors, (11), 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) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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) [2025-01-09 08:22:07,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 08:22:07,083 INFO L93 Difference]: Finished difference Result 18 states and 23 transitions. [2025-01-09 08:22:07,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 08:22:07,085 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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) Word has length 5 [2025-01-09 08:22:07,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 08:22:07,088 INFO L225 Difference]: With dead ends: 18 [2025-01-09 08:22:07,089 INFO L226 Difference]: Without dead ends: 10 [2025-01-09 08:22:07,090 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-01-09 08:22:07,092 INFO L435 NwaCegarLoop]: 4 mSDtfsCounter, 2 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 08:22:07,092 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 11 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 08:22:07,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2025-01-09 08:22:07,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2025-01-09 08:22:07,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 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) [2025-01-09 08:22:07,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2025-01-09 08:22:07,109 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2025-01-09 08:22:07,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 08:22:07,109 INFO L471 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2025-01-09 08:22:07,109 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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) [2025-01-09 08:22:07,109 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2025-01-09 08:22:07,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2025-01-09 08:22:07,110 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 08:22:07,110 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2025-01-09 08:22:07,119 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-01-09 08:22:07,314 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 08:22:07,315 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 08:22:07,315 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 08:22:07,315 INFO L85 PathProgramCache]: Analyzing trace with hash 152739811, now seen corresponding path program 1 times [2025-01-09 08:22:07,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 08:22:07,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1659323938] [2025-01-09 08:22:07,319 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 08:22:07,319 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 08:22:07,319 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 08:22:07,321 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 08:22:07,326 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-01-09 08:22:07,581 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-01-09 08:22:07,619 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-01-09 08:22:07,620 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 08:22:07,620 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 08:22:07,629 INFO L256 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 36 conjuncts are in the unsatisfiable core [2025-01-09 08:22:07,635 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 08:22:07,861 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 08:22:07,861 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 08:22:09,482 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 08:22:09,482 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 08:22:09,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1659323938] [2025-01-09 08:22:09,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1659323938] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-09 08:22:09,483 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-01-09 08:22:09,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2025-01-09 08:22:09,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664773317] [2025-01-09 08:22:09,484 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-01-09 08:22:09,485 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-01-09 08:22:09,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 08:22:09,485 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-01-09 08:22:09,485 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2025-01-09 08:22:09,485 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 10 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 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) [2025-01-09 08:22:09,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 08:22:09,654 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2025-01-09 08:22:09,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-09 08:22:09,655 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 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) Word has length 8 [2025-01-09 08:22:09,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 08:22:09,655 INFO L225 Difference]: With dead ends: 15 [2025-01-09 08:22:09,655 INFO L226 Difference]: Without dead ends: 13 [2025-01-09 08:22:09,655 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2025-01-09 08:22:09,656 INFO L435 NwaCegarLoop]: 4 mSDtfsCounter, 6 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 08:22:09,656 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 19 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 08:22:09,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2025-01-09 08:22:09,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2025-01-09 08:22:09,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 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) [2025-01-09 08:22:09,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2025-01-09 08:22:09,658 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2025-01-09 08:22:09,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 08:22:09,658 INFO L471 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2025-01-09 08:22:09,658 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 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) [2025-01-09 08:22:09,658 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2025-01-09 08:22:09,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2025-01-09 08:22:09,659 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 08:22:09,659 INFO L218 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2025-01-09 08:22:09,665 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-01-09 08:22:09,859 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 08:22:09,860 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 08:22:09,860 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 08:22:09,860 INFO L85 PathProgramCache]: Analyzing trace with hash 1906115653, now seen corresponding path program 2 times [2025-01-09 08:22:09,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 08:22:09,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1009118176] [2025-01-09 08:22:09,861 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-09 08:22:09,861 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 08:22:09,862 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 08:22:09,863 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 08:22:09,869 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-01-09 08:22:10,116 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 11 statements into 2 equivalence classes. [2025-01-09 08:22:10,163 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 11 of 11 statements. [2025-01-09 08:22:10,164 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-09 08:22:10,164 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 08:22:10,169 INFO L256 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 63 conjuncts are in the unsatisfiable core [2025-01-09 08:22:10,178 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 08:22:11,520 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 08:22:11,521 INFO L312 TraceCheckSpWp]: Computing backward predicates...