./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem14_label25.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c00e63dc 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/eca-rers2012/Problem14_label25.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash af25e83b6858fff60f7d1f210bf28c8f4df9d888273dfb197f604bfc8ae9e1a1 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-05 11:49:22,227 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-05 11:49:22,294 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-02-05 11:49:22,301 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-05 11:49:22,304 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-05 11:49:22,327 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-05 11:49:22,329 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-05 11:49:22,329 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-05 11:49:22,329 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-05 11:49:22,329 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-05 11:49:22,330 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-05 11:49:22,330 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-05 11:49:22,330 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-05 11:49:22,330 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-05 11:49:22,331 INFO L153 SettingsManager]: * Use SBE=true [2025-02-05 11:49:22,331 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-05 11:49:22,331 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-05 11:49:22,331 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-05 11:49:22,331 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-05 11:49:22,331 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-05 11:49:22,331 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-05 11:49:22,332 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-05 11:49:22,332 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-05 11:49:22,332 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-05 11:49:22,332 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-05 11:49:22,332 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-05 11:49:22,332 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-05 11:49:22,332 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-05 11:49:22,332 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-05 11:49:22,332 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-05 11:49:22,333 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-05 11:49:22,333 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-05 11:49:22,333 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-05 11:49:22,333 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-05 11:49:22,333 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-05 11:49:22,333 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-05 11:49:22,333 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-05 11:49:22,333 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-05 11:49:22,333 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-05 11:49:22,333 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-05 11:49:22,333 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-05 11:49:22,333 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-05 11:49:22,333 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-05 11:49:22,333 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> af25e83b6858fff60f7d1f210bf28c8f4df9d888273dfb197f604bfc8ae9e1a1 [2025-02-05 11:49:22,537 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-05 11:49:22,541 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-05 11:49:22,545 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-05 11:49:22,546 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-05 11:49:22,546 INFO L274 PluginConnector]: CDTParser initialized [2025-02-05 11:49:22,547 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem14_label25.c [2025-02-05 11:49:23,708 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/bd6ef9ac3/4c25408e10bf4265976298adad910968/FLAGb79d599b7 [2025-02-05 11:49:24,010 INFO L384 CDTParser]: Found 1 translation units. [2025-02-05 11:49:24,010 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem14_label25.c [2025-02-05 11:49:24,031 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/bd6ef9ac3/4c25408e10bf4265976298adad910968/FLAGb79d599b7 [2025-02-05 11:49:24,046 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/bd6ef9ac3/4c25408e10bf4265976298adad910968 [2025-02-05 11:49:24,048 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-05 11:49:24,049 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-05 11:49:24,050 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-05 11:49:24,050 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-05 11:49:24,054 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-05 11:49:24,055 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.02 11:49:24" (1/1) ... [2025-02-05 11:49:24,057 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37eaf57a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 11:49:24, skipping insertion in model container [2025-02-05 11:49:24,057 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.02 11:49:24" (1/1) ... [2025-02-05 11:49:24,093 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-05 11:49:24,320 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/eca-rers2012/Problem14_label25.c[6534,6547] [2025-02-05 11:49:24,568 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-05 11:49:24,586 INFO L200 MainTranslator]: Completed pre-run [2025-02-05 11:49:24,615 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/eca-rers2012/Problem14_label25.c[6534,6547] [2025-02-05 11:49:24,688 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-05 11:49:24,698 INFO L204 MainTranslator]: Completed translation [2025-02-05 11:49:24,698 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 11:49:24 WrapperNode [2025-02-05 11:49:24,699 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-05 11:49:24,700 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-05 11:49:24,700 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-05 11:49:24,700 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-05 11:49:24,704 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 11:49:24" (1/1) ... [2025-02-05 11:49:24,718 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 11:49:24" (1/1) ... [2025-02-05 11:49:24,770 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 856 [2025-02-05 11:49:24,771 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-05 11:49:24,771 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-05 11:49:24,772 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-05 11:49:24,772 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-05 11:49:24,778 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 11:49:24" (1/1) ... [2025-02-05 11:49:24,779 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 11:49:24" (1/1) ... [2025-02-05 11:49:24,784 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 11:49:24" (1/1) ... [2025-02-05 11:49:24,827 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-02-05 11:49:24,827 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 11:49:24" (1/1) ... [2025-02-05 11:49:24,827 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 11:49:24" (1/1) ... [2025-02-05 11:49:24,847 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 11:49:24" (1/1) ... [2025-02-05 11:49:24,852 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 11:49:24" (1/1) ... [2025-02-05 11:49:24,858 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 11:49:24" (1/1) ... [2025-02-05 11:49:24,861 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 11:49:24" (1/1) ... [2025-02-05 11:49:24,871 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-05 11:49:24,872 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-05 11:49:24,873 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-05 11:49:24,873 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-05 11:49:24,874 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 11:49:24" (1/1) ... [2025-02-05 11:49:24,878 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-05 11:49:24,888 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 11:49:24,904 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-05 11:49:24,915 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-05 11:49:24,933 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-05 11:49:24,933 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-05 11:49:24,933 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-05 11:49:24,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-05 11:49:24,983 INFO L257 CfgBuilder]: Building ICFG [2025-02-05 11:49:24,984 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-05 11:49:25,886 INFO L? ?]: Removed 123 outVars from TransFormulas that were not future-live. [2025-02-05 11:49:25,886 INFO L308 CfgBuilder]: Performing block encoding [2025-02-05 11:49:25,906 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-05 11:49:25,906 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-05 11:49:25,907 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 05.02 11:49:25 BoogieIcfgContainer [2025-02-05 11:49:25,907 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-05 11:49:25,908 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-05 11:49:25,908 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-05 11:49:25,915 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-05 11:49:25,915 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.02 11:49:24" (1/3) ... [2025-02-05 11:49:25,916 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58f574d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.02 11:49:25, skipping insertion in model container [2025-02-05 11:49:25,916 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 11:49:24" (2/3) ... [2025-02-05 11:49:25,916 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58f574d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.02 11:49:25, skipping insertion in model container [2025-02-05 11:49:25,916 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 05.02 11:49:25" (3/3) ... [2025-02-05 11:49:25,920 INFO L128 eAbstractionObserver]: Analyzing ICFG Problem14_label25.c [2025-02-05 11:49:25,934 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-05 11:49:25,935 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG Problem14_label25.c that has 1 procedures, 245 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-02-05 11:49:25,982 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-05 11:49:25,992 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;@69ea99e8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-05 11:49:25,993 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-05 11:49:25,997 INFO L276 IsEmpty]: Start isEmpty. Operand has 245 states, 243 states have (on average 1.7325102880658436) internal successors, (421), 244 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 11:49:26,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2025-02-05 11:49:26,001 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 11:49:26,002 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 11:49:26,002 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 11:49:26,005 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 11:49:26,005 INFO L85 PathProgramCache]: Analyzing trace with hash 1892180135, now seen corresponding path program 1 times [2025-02-05 11:49:26,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 11:49:26,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110496917] [2025-02-05 11:49:26,010 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 11:49:26,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 11:49:26,061 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 64 statements into 1 equivalence classes. [2025-02-05 11:49:26,098 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 64 of 64 statements. [2025-02-05 11:49:26,102 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 11:49:26,102 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 11:49:26,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 11:49:26,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 11:49:26,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110496917] [2025-02-05 11:49:26,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [110496917] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 11:49:26,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 11:49:26,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-05 11:49:26,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745641042] [2025-02-05 11:49:26,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 11:49:26,431 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-05 11:49:26,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 11:49:26,453 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-05 11:49:26,453 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-05 11:49:26,456 INFO L87 Difference]: Start difference. First operand has 245 states, 243 states have (on average 1.7325102880658436) internal successors, (421), 244 states have internal predecessors, (421), 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 16.0) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 11:49:27,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 11:49:27,694 INFO L93 Difference]: Finished difference Result 852 states and 1556 transitions. [2025-02-05 11:49:27,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-05 11:49:27,696 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 3 states have internal predecessors, (64), 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 64 [2025-02-05 11:49:27,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 11:49:27,703 INFO L225 Difference]: With dead ends: 852 [2025-02-05 11:49:27,703 INFO L226 Difference]: Without dead ends: 538 [2025-02-05 11:49:27,706 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-05 11:49:27,707 INFO L435 NwaCegarLoop]: 30 mSDtfsCounter, 547 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 882 mSolverCounterSat, 425 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 547 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 1307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 425 IncrementalHoareTripleChecker+Valid, 882 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2025-02-05 11:49:27,708 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [547 Valid, 44 Invalid, 1307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [425 Valid, 882 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2025-02-05 11:49:27,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2025-02-05 11:49:27,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 538. [2025-02-05 11:49:27,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 537 states have (on average 1.4487895716945995) internal successors, (778), 537 states have internal predecessors, (778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 11:49:27,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 778 transitions. [2025-02-05 11:49:27,782 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 778 transitions. Word has length 64 [2025-02-05 11:49:27,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 11:49:27,782 INFO L471 AbstractCegarLoop]: Abstraction has 538 states and 778 transitions. [2025-02-05 11:49:27,782 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 11:49:27,782 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 778 transitions. [2025-02-05 11:49:27,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2025-02-05 11:49:27,788 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 11:49:27,788 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 11:49:27,789 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-05 11:49:27,789 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 11:49:27,790 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 11:49:27,790 INFO L85 PathProgramCache]: Analyzing trace with hash -1620509359, now seen corresponding path program 1 times [2025-02-05 11:49:27,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 11:49:27,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410170521] [2025-02-05 11:49:27,790 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 11:49:27,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 11:49:27,834 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 200 statements into 1 equivalence classes. [2025-02-05 11:49:27,854 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 200 of 200 statements. [2025-02-05 11:49:27,854 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 11:49:27,854 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 11:49:28,062 INFO L134 CoverageAnalysis]: Checked inductivity of 188 backedges. 126 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2025-02-05 11:49:28,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 11:49:28,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410170521] [2025-02-05 11:49:28,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410170521] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 11:49:28,066 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 11:49:28,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-05 11:49:28,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080372108] [2025-02-05 11:49:28,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 11:49:28,067 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-05 11:49:28,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 11:49:28,068 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-05 11:49:28,068 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 11:49:28,068 INFO L87 Difference]: Start difference. First operand 538 states and 778 transitions. Second operand has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 2 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 11:49:28,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 11:49:28,883 INFO L93 Difference]: Finished difference Result 1074 states and 1656 transitions. [2025-02-05 11:49:28,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-05 11:49:28,883 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 2 states have internal predecessors, (139), 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 200 [2025-02-05 11:49:28,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 11:49:28,886 INFO L225 Difference]: With dead ends: 1074 [2025-02-05 11:49:28,886 INFO L226 Difference]: Without dead ends: 716 [2025-02-05 11:49:28,887 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 11:49:28,888 INFO L435 NwaCegarLoop]: 54 mSDtfsCounter, 125 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 431 mSolverCounterSat, 201 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 201 IncrementalHoareTripleChecker+Valid, 431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2025-02-05 11:49:28,888 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 57 Invalid, 632 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [201 Valid, 431 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2025-02-05 11:49:28,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2025-02-05 11:49:28,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 716. [2025-02-05 11:49:28,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 716 states, 715 states have (on average 1.353846153846154) internal successors, (968), 715 states have internal predecessors, (968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 11:49:28,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 968 transitions. [2025-02-05 11:49:28,903 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 968 transitions. Word has length 200 [2025-02-05 11:49:28,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 11:49:28,903 INFO L471 AbstractCegarLoop]: Abstraction has 716 states and 968 transitions. [2025-02-05 11:49:28,903 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 2 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 11:49:28,903 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 968 transitions. [2025-02-05 11:49:28,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2025-02-05 11:49:28,905 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 11:49:28,906 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 11:49:28,906 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-05 11:49:28,906 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 11:49:28,910 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 11:49:28,910 INFO L85 PathProgramCache]: Analyzing trace with hash 1750436578, now seen corresponding path program 1 times [2025-02-05 11:49:28,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 11:49:28,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019318032] [2025-02-05 11:49:28,910 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 11:49:28,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 11:49:28,928 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 223 statements into 1 equivalence classes. [2025-02-05 11:49:28,948 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 223 of 223 statements. [2025-02-05 11:49:28,948 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 11:49:28,949 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 11:49:29,288 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 168 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2025-02-05 11:49:29,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 11:49:29,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019318032] [2025-02-05 11:49:29,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2019318032] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 11:49:29,288 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 11:49:29,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-05 11:49:29,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44318043] [2025-02-05 11:49:29,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 11:49:29,288 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-05 11:49:29,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 11:49:29,289 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-05 11:49:29,289 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-05 11:49:29,289 INFO L87 Difference]: Start difference. First operand 716 states and 968 transitions. Second operand has 4 states, 4 states have (on average 47.75) internal successors, (191), 3 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 11:49:30,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 11:49:30,193 INFO L93 Difference]: Finished difference Result 1459 states and 2023 transitions. [2025-02-05 11:49:30,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-05 11:49:30,194 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 47.75) internal successors, (191), 3 states have internal predecessors, (191), 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 223 [2025-02-05 11:49:30,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 11:49:30,198 INFO L225 Difference]: With dead ends: 1459 [2025-02-05 11:49:30,198 INFO L226 Difference]: Without dead ends: 894 [2025-02-05 11:49:30,199 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-05 11:49:30,200 INFO L435 NwaCegarLoop]: 105 mSDtfsCounter, 101 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 719 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 822 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 719 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2025-02-05 11:49:30,201 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 114 Invalid, 822 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 719 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2025-02-05 11:49:30,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 894 states. [2025-02-05 11:49:30,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 894 to 894. [2025-02-05 11:49:30,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 894 states, 893 states have (on average 1.1724524076147815) internal successors, (1047), 893 states have internal predecessors, (1047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 11:49:30,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 894 states to 894 states and 1047 transitions. [2025-02-05 11:49:30,221 INFO L78 Accepts]: Start accepts. Automaton has 894 states and 1047 transitions. Word has length 223 [2025-02-05 11:49:30,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 11:49:30,221 INFO L471 AbstractCegarLoop]: Abstraction has 894 states and 1047 transitions. [2025-02-05 11:49:30,222 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.75) internal successors, (191), 3 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 11:49:30,222 INFO L276 IsEmpty]: Start isEmpty. Operand 894 states and 1047 transitions. [2025-02-05 11:49:30,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2025-02-05 11:49:30,228 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 11:49:30,229 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 11:49:30,229 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-05 11:49:30,229 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 11:49:30,229 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 11:49:30,229 INFO L85 PathProgramCache]: Analyzing trace with hash 1147167518, now seen corresponding path program 1 times [2025-02-05 11:49:30,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 11:49:30,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965228585] [2025-02-05 11:49:30,229 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 11:49:30,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 11:49:30,263 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 354 statements into 1 equivalence classes. [2025-02-05 11:49:30,284 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 354 of 354 statements. [2025-02-05 11:49:30,284 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 11:49:30,284 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 11:49:30,890 INFO L134 CoverageAnalysis]: Checked inductivity of 446 backedges. 316 proven. 130 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 11:49:30,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 11:49:30,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965228585] [2025-02-05 11:49:30,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1965228585] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 11:49:30,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [60743147] [2025-02-05 11:49:30,891 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 11:49:30,891 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 11:49:30,891 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 11:49:30,895 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) [2025-02-05 11:49:30,898 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 [2025-02-05 11:49:30,976 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 354 statements into 1 equivalence classes. [2025-02-05 11:49:31,028 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 354 of 354 statements. [2025-02-05 11:49:31,028 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 11:49:31,028 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 11:49:31,031 INFO L256 TraceCheckSpWp]: Trace formula consists of 468 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-05 11:49:31,040 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 11:49:31,185 INFO L134 CoverageAnalysis]: Checked inductivity of 446 backedges. 185 proven. 0 refuted. 0 times theorem prover too weak. 261 trivial. 0 not checked. [2025-02-05 11:49:31,189 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 11:49:31,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [60743147] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 11:49:31,190 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-05 11:49:31,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2025-02-05 11:49:31,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516380695] [2025-02-05 11:49:31,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 11:49:31,190 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-05 11:49:31,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 11:49:31,191 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-05 11:49:31,191 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2025-02-05 11:49:31,191 INFO L87 Difference]: Start difference. First operand 894 states and 1047 transitions. Second operand has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 11:49:31,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 11:49:31,804 INFO L93 Difference]: Finished difference Result 2320 states and 2778 transitions. [2025-02-05 11:49:31,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-05 11:49:31,804 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 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 354 [2025-02-05 11:49:31,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 11:49:31,809 INFO L225 Difference]: With dead ends: 2320 [2025-02-05 11:49:31,809 INFO L226 Difference]: Without dead ends: 1606 [2025-02-05 11:49:31,810 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 358 GetRequests, 353 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2025-02-05 11:49:31,810 INFO L435 NwaCegarLoop]: 257 mSDtfsCounter, 117 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 262 SdHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-02-05 11:49:31,811 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 262 Invalid, 531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 477 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-02-05 11:49:31,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1606 states. [2025-02-05 11:49:31,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1606 to 1428. [2025-02-05 11:49:31,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1428 states, 1427 states have (on average 1.1478626489138053) internal successors, (1638), 1427 states have internal predecessors, (1638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 11:49:31,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 1638 transitions. [2025-02-05 11:49:31,832 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 1638 transitions. Word has length 354 [2025-02-05 11:49:31,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 11:49:31,833 INFO L471 AbstractCegarLoop]: Abstraction has 1428 states and 1638 transitions. [2025-02-05 11:49:31,833 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 11:49:31,834 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 1638 transitions. [2025-02-05 11:49:31,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 454 [2025-02-05 11:49:31,838 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 11:49:31,838 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 11:49:31,848 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-02-05 11:49:32,040 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 11:49:32,041 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 11:49:32,041 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 11:49:32,041 INFO L85 PathProgramCache]: Analyzing trace with hash 262791075, now seen corresponding path program 1 times [2025-02-05 11:49:32,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 11:49:32,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256148121] [2025-02-05 11:49:32,041 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 11:49:32,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 11:49:32,075 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 453 statements into 1 equivalence classes. [2025-02-05 11:49:32,103 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 453 of 453 statements. [2025-02-05 11:49:32,103 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 11:49:32,103 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 11:49:32,418 INFO L134 CoverageAnalysis]: Checked inductivity of 770 backedges. 604 proven. 0 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2025-02-05 11:49:32,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 11:49:32,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256148121] [2025-02-05 11:49:32,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [256148121] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 11:49:32,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 11:49:32,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-05 11:49:32,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012898532] [2025-02-05 11:49:32,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 11:49:32,419 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-05 11:49:32,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 11:49:32,420 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-05 11:49:32,420 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 11:49:32,420 INFO L87 Difference]: Start difference. First operand 1428 states and 1638 transitions. Second operand has 3 states, 3 states have (on average 96.33333333333333) internal successors, (289), 3 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 11:49:33,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 11:49:33,099 INFO L93 Difference]: Finished difference Result 3032 states and 3563 transitions. [2025-02-05 11:49:33,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-05 11:49:33,103 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 96.33333333333333) internal successors, (289), 3 states have internal predecessors, (289), 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 453 [2025-02-05 11:49:33,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 11:49:33,108 INFO L225 Difference]: With dead ends: 3032 [2025-02-05 11:49:33,108 INFO L226 Difference]: Without dead ends: 1784 [2025-02-05 11:49:33,110 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 11:49:33,110 INFO L435 NwaCegarLoop]: 73 mSDtfsCounter, 73 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-02-05 11:49:33,110 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 76 Invalid, 519 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 468 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-02-05 11:49:33,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1784 states. [2025-02-05 11:49:33,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1784 to 1784. [2025-02-05 11:49:33,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1784 states, 1783 states have (on average 1.1402131239484015) internal successors, (2033), 1783 states have internal predecessors, (2033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 11:49:33,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1784 states to 1784 states and 2033 transitions. [2025-02-05 11:49:33,136 INFO L78 Accepts]: Start accepts. Automaton has 1784 states and 2033 transitions. Word has length 453 [2025-02-05 11:49:33,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 11:49:33,136 INFO L471 AbstractCegarLoop]: Abstraction has 1784 states and 2033 transitions. [2025-02-05 11:49:33,137 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 96.33333333333333) internal successors, (289), 3 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 11:49:33,137 INFO L276 IsEmpty]: Start isEmpty. Operand 1784 states and 2033 transitions. [2025-02-05 11:49:33,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 478 [2025-02-05 11:49:33,142 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 11:49:33,142 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 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] [2025-02-05 11:49:33,142 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-05 11:49:33,142 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 11:49:33,143 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 11:49:33,143 INFO L85 PathProgramCache]: Analyzing trace with hash -534227737, now seen corresponding path program 1 times [2025-02-05 11:49:33,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 11:49:33,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917227116] [2025-02-05 11:49:33,143 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 11:49:33,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 11:49:33,172 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 477 statements into 1 equivalence classes. [2025-02-05 11:49:33,184 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 477 of 477 statements. [2025-02-05 11:49:33,184 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 11:49:33,184 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 11:49:33,666 INFO L134 CoverageAnalysis]: Checked inductivity of 774 backedges. 557 proven. 23 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2025-02-05 11:49:33,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 11:49:33,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917227116] [2025-02-05 11:49:33,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917227116] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 11:49:33,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [278394825] [2025-02-05 11:49:33,667 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 11:49:33,667 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 11:49:33,667 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 11:49:33,669 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) [2025-02-05 11:49:33,670 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 [2025-02-05 11:49:33,724 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 477 statements into 1 equivalence classes. [2025-02-05 11:49:33,786 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 477 of 477 statements. [2025-02-05 11:49:33,786 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 11:49:33,786 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 11:49:33,789 INFO L256 TraceCheckSpWp]: Trace formula consists of 612 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-05 11:49:33,794 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 11:49:33,901 INFO L134 CoverageAnalysis]: Checked inductivity of 774 backedges. 247 proven. 0 refuted. 0 times theorem prover too weak. 527 trivial. 0 not checked. [2025-02-05 11:49:33,902 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 11:49:33,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [278394825] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 11:49:33,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-05 11:49:33,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2025-02-05 11:49:33,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305824274] [2025-02-05 11:49:33,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 11:49:33,903 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-05 11:49:33,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 11:49:33,904 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-05 11:49:33,904 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-05 11:49:33,904 INFO L87 Difference]: Start difference. First operand 1784 states and 2033 transitions. Second operand has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 11:49:34,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 11:49:34,378 INFO L93 Difference]: Finished difference Result 4100 states and 4750 transitions. [2025-02-05 11:49:34,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-05 11:49:34,379 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 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 477 [2025-02-05 11:49:34,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 11:49:34,386 INFO L225 Difference]: With dead ends: 4100 [2025-02-05 11:49:34,386 INFO L226 Difference]: Without dead ends: 2496 [2025-02-05 11:49:34,388 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 480 GetRequests, 476 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-05 11:49:34,389 INFO L435 NwaCegarLoop]: 260 mSDtfsCounter, 117 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 440 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 265 SdHoareTripleChecker+Invalid, 519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-02-05 11:49:34,389 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 265 Invalid, 519 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 440 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-02-05 11:49:34,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2496 states. [2025-02-05 11:49:34,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2496 to 2318. [2025-02-05 11:49:34,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2318 states, 2317 states have (on average 1.127751402675874) internal successors, (2613), 2317 states have internal predecessors, (2613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 11:49:34,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2318 states to 2318 states and 2613 transitions. [2025-02-05 11:49:34,428 INFO L78 Accepts]: Start accepts. Automaton has 2318 states and 2613 transitions. Word has length 477 [2025-02-05 11:49:34,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 11:49:34,429 INFO L471 AbstractCegarLoop]: Abstraction has 2318 states and 2613 transitions. [2025-02-05 11:49:34,429 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 11:49:34,429 INFO L276 IsEmpty]: Start isEmpty. Operand 2318 states and 2613 transitions. [2025-02-05 11:49:34,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 484 [2025-02-05 11:49:34,436 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 11:49:34,436 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 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] [2025-02-05 11:49:34,444 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-02-05 11:49:34,641 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 11:49:34,641 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 11:49:34,642 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 11:49:34,642 INFO L85 PathProgramCache]: Analyzing trace with hash -645845928, now seen corresponding path program 1 times [2025-02-05 11:49:34,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 11:49:34,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715705266] [2025-02-05 11:49:34,642 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 11:49:34,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 11:49:34,701 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 483 statements into 1 equivalence classes. [2025-02-05 11:49:34,723 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 483 of 483 statements. [2025-02-05 11:49:34,723 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 11:49:34,723 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 11:49:35,145 INFO L134 CoverageAnalysis]: Checked inductivity of 792 backedges. 569 proven. 23 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2025-02-05 11:49:35,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 11:49:35,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715705266] [2025-02-05 11:49:35,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1715705266] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 11:49:35,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [20701914] [2025-02-05 11:49:35,146 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 11:49:35,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 11:49:35,146 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 11:49:35,150 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) [2025-02-05 11:49:35,152 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 [2025-02-05 11:49:35,198 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 483 statements into 1 equivalence classes. [2025-02-05 11:49:35,260 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 483 of 483 statements. [2025-02-05 11:49:35,260 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 11:49:35,260 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 11:49:35,262 INFO L256 TraceCheckSpWp]: Trace formula consists of 618 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-05 11:49:35,267 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 11:49:35,350 INFO L134 CoverageAnalysis]: Checked inductivity of 792 backedges. 247 proven. 0 refuted. 0 times theorem prover too weak. 545 trivial. 0 not checked. [2025-02-05 11:49:35,351 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 11:49:35,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [20701914] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 11:49:35,351 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-05 11:49:35,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2025-02-05 11:49:35,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891470983] [2025-02-05 11:49:35,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 11:49:35,353 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-05 11:49:35,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 11:49:35,354 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-05 11:49:35,354 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-02-05 11:49:35,355 INFO L87 Difference]: Start difference. First operand 2318 states and 2613 transitions. Second operand has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 11:49:35,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 11:49:35,826 INFO L93 Difference]: Finished difference Result 4990 states and 5729 transitions. [2025-02-05 11:49:35,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-05 11:49:35,826 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 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 483 [2025-02-05 11:49:35,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 11:49:35,835 INFO L225 Difference]: With dead ends: 4990 [2025-02-05 11:49:35,835 INFO L226 Difference]: Without dead ends: 2852 [2025-02-05 11:49:35,838 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 486 GetRequests, 482 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-02-05 11:49:35,839 INFO L435 NwaCegarLoop]: 207 mSDtfsCounter, 120 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 456 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 456 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-02-05 11:49:35,840 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 212 Invalid, 512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 456 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-02-05 11:49:35,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2852 states. [2025-02-05 11:49:35,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2852 to 2496. [2025-02-05 11:49:35,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2496 states, 2495 states have (on average 1.1507014028056113) internal successors, (2871), 2495 states have internal predecessors, (2871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 11:49:35,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2496 states to 2496 states and 2871 transitions. [2025-02-05 11:49:35,879 INFO L78 Accepts]: Start accepts. Automaton has 2496 states and 2871 transitions. Word has length 483 [2025-02-05 11:49:35,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 11:49:35,880 INFO L471 AbstractCegarLoop]: Abstraction has 2496 states and 2871 transitions. [2025-02-05 11:49:35,880 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 11:49:35,880 INFO L276 IsEmpty]: Start isEmpty. Operand 2496 states and 2871 transitions. [2025-02-05 11:49:35,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 516 [2025-02-05 11:49:35,884 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 11:49:35,885 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 11:49:35,892 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-02-05 11:49:36,085 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 11:49:36,086 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 11:49:36,087 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 11:49:36,090 INFO L85 PathProgramCache]: Analyzing trace with hash -466509688, now seen corresponding path program 1 times [2025-02-05 11:49:36,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 11:49:36,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464196500] [2025-02-05 11:49:36,090 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 11:49:36,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 11:49:36,139 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 515 statements into 1 equivalence classes. [2025-02-05 11:49:36,150 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 515 of 515 statements. [2025-02-05 11:49:36,152 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 11:49:36,152 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 11:49:36,526 INFO L134 CoverageAnalysis]: Checked inductivity of 852 backedges. 615 proven. 23 refuted. 0 times theorem prover too weak. 214 trivial. 0 not checked. [2025-02-05 11:49:36,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 11:49:36,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464196500] [2025-02-05 11:49:36,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464196500] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 11:49:36,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1695826552] [2025-02-05 11:49:36,526 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 11:49:36,526 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 11:49:36,527 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 11:49:36,529 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-05 11:49:36,531 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-02-05 11:49:36,583 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 515 statements into 1 equivalence classes. [2025-02-05 11:49:36,654 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 515 of 515 statements. [2025-02-05 11:49:36,654 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 11:49:36,655 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 11:49:36,657 INFO L256 TraceCheckSpWp]: Trace formula consists of 650 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-05 11:49:36,661 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 11:49:36,735 INFO L134 CoverageAnalysis]: Checked inductivity of 852 backedges. 247 proven. 0 refuted. 0 times theorem prover too weak. 605 trivial. 0 not checked. [2025-02-05 11:49:36,736 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 11:49:36,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1695826552] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 11:49:36,736 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-05 11:49:36,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2025-02-05 11:49:36,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969613443] [2025-02-05 11:49:36,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 11:49:36,737 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-05 11:49:36,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 11:49:36,738 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-05 11:49:36,738 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-05 11:49:36,738 INFO L87 Difference]: Start difference. First operand 2496 states and 2871 transitions. Second operand has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 11:49:37,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 11:49:37,241 INFO L93 Difference]: Finished difference Result 6056 states and 7028 transitions. [2025-02-05 11:49:37,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-05 11:49:37,242 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 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 515 [2025-02-05 11:49:37,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 11:49:37,243 INFO L225 Difference]: With dead ends: 6056 [2025-02-05 11:49:37,243 INFO L226 Difference]: Without dead ends: 0 [2025-02-05 11:49:37,248 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 518 GetRequests, 514 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-05 11:49:37,248 INFO L435 NwaCegarLoop]: 222 mSDtfsCounter, 127 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 447 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 447 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-02-05 11:49:37,249 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 226 Invalid, 516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 447 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-02-05 11:49:37,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2025-02-05 11:49:37,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2025-02-05 11:49:37,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 11:49:37,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2025-02-05 11:49:37,251 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 515 [2025-02-05 11:49:37,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 11:49:37,251 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-05 11:49:37,251 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 11:49:37,251 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2025-02-05 11:49:37,251 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2025-02-05 11:49:37,253 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-02-05 11:49:37,262 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-02-05 11:49:37,454 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2025-02-05 11:49:37,458 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 11:49:37,459 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2025-02-05 11:49:37,503 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-05 11:49:37,517 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.02 11:49:37 BoogieIcfgContainer [2025-02-05 11:49:37,517 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-05 11:49:37,518 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-05 11:49:37,518 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-05 11:49:37,518 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-05 11:49:37,519 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 05.02 11:49:25" (3/4) ... [2025-02-05 11:49:37,521 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-02-05 11:49:37,541 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2025-02-05 11:49:37,543 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2025-02-05 11:49:37,544 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-02-05 11:49:37,545 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-02-05 11:49:37,668 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-05 11:49:37,669 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-05 11:49:37,669 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-05 11:49:37,670 INFO L158 Benchmark]: Toolchain (without parser) took 13620.16ms. Allocated memory was 201.3MB in the beginning and 411.0MB in the end (delta: 209.7MB). Free memory was 158.0MB in the beginning and 191.7MB in the end (delta: -33.7MB). Peak memory consumption was 171.7MB. Max. memory is 16.1GB. [2025-02-05 11:49:37,670 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 218.1MB. Free memory is still 133.0MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-05 11:49:37,670 INFO L158 Benchmark]: CACSL2BoogieTranslator took 649.04ms. Allocated memory is still 201.3MB. Free memory was 157.7MB in the beginning and 126.3MB in the end (delta: 31.4MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2025-02-05 11:49:37,671 INFO L158 Benchmark]: Boogie Procedure Inliner took 71.16ms. Allocated memory is still 201.3MB. Free memory was 126.3MB in the beginning and 117.0MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-05 11:49:37,671 INFO L158 Benchmark]: Boogie Preprocessor took 100.35ms. Allocated memory is still 201.3MB. Free memory was 117.0MB in the beginning and 105.7MB in the end (delta: 11.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-05 11:49:37,671 INFO L158 Benchmark]: IcfgBuilder took 1034.65ms. Allocated memory is still 201.3MB. Free memory was 105.7MB in the beginning and 90.7MB in the end (delta: 15.0MB). Peak memory consumption was 69.3MB. Max. memory is 16.1GB. [2025-02-05 11:49:37,671 INFO L158 Benchmark]: TraceAbstraction took 11609.20ms. Allocated memory was 201.3MB in the beginning and 411.0MB in the end (delta: 209.7MB). Free memory was 90.6MB in the beginning and 208.5MB in the end (delta: -117.9MB). Peak memory consumption was 93.9MB. Max. memory is 16.1GB. [2025-02-05 11:49:37,672 INFO L158 Benchmark]: Witness Printer took 151.01ms. Allocated memory is still 411.0MB. Free memory was 208.5MB in the beginning and 191.7MB in the end (delta: 16.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-05 11:49:37,673 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 218.1MB. Free memory is still 133.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 649.04ms. Allocated memory is still 201.3MB. Free memory was 157.7MB in the beginning and 126.3MB in the end (delta: 31.4MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 71.16ms. Allocated memory is still 201.3MB. Free memory was 126.3MB in the beginning and 117.0MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 100.35ms. Allocated memory is still 201.3MB. Free memory was 117.0MB in the beginning and 105.7MB in the end (delta: 11.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * IcfgBuilder took 1034.65ms. Allocated memory is still 201.3MB. Free memory was 105.7MB in the beginning and 90.7MB in the end (delta: 15.0MB). Peak memory consumption was 69.3MB. Max. memory is 16.1GB. * TraceAbstraction took 11609.20ms. Allocated memory was 201.3MB in the beginning and 411.0MB in the end (delta: 209.7MB). Free memory was 90.6MB in the beginning and 208.5MB in the end (delta: -117.9MB). Peak memory consumption was 93.9MB. Max. memory is 16.1GB. * Witness Printer took 151.01ms. Allocated memory is still 411.0MB. Free memory was 208.5MB in the beginning and 191.7MB in the end (delta: 16.7MB). Peak memory consumption was 8.4MB. 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 - PositiveResult [Line: 206]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 245 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 11.5s, OverallIterations: 8, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 5.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1327 SdHoareTripleChecker+Valid, 5.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1327 mSDsluCounter, 1256 SdHoareTripleChecker+Invalid, 4.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 48 mSDsCounter, 1038 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4320 IncrementalHoareTripleChecker+Invalid, 5358 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1038 mSolverCounterUnsat, 1208 mSDtfsCounter, 4320 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1854 GetRequests, 1830 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2496occurred in iteration=7, InterpolantAutomatonStates: 26, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 8 MinimizatonAttempts, 712 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.5s InterpolantComputationTime, 4598 NumberOfCodeBlocks, 4598 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 4586 ConstructedInterpolants, 0 QuantifiedInterpolants, 16438 SizeOfPredicates, 0 NumberOfNonLiveVariables, 2348 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 12 InterpolantComputations, 8 PerfectInterpolantSequences, 6688/6887 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 890]: Location Invariant Derived location invariant: ((((a21 < 7) || (a15 != 6)) || (8 < a21)) || (11 < a12)) RESULT: Ultimate proved your program to be correct! [2025-02-05 11:49:37,690 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE