./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-89.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-89.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6c4f2ab200ae95c9ca275594b018c3497d9548a4085e649d22d856974a67d096 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 08:59:58,887 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 08:59:58,953 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-24 08:59:58,959 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 08:59:58,960 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 08:59:58,987 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 08:59:58,989 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 08:59:58,989 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 08:59:58,990 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 08:59:58,991 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 08:59:58,992 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 08:59:58,992 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 08:59:58,993 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 08:59:58,993 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 08:59:58,993 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 08:59:58,996 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 08:59:58,996 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 08:59:58,996 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 08:59:58,997 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 08:59:58,997 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 08:59:58,997 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 08:59:58,998 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 08:59:58,998 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 08:59:58,998 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 08:59:58,999 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 08:59:58,999 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 08:59:58,999 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 08:59:59,000 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 08:59:59,000 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 08:59:59,000 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 08:59:59,000 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 08:59:59,001 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 08:59:59,001 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 08:59:59,002 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 08:59:59,002 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 08:59:59,003 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 08:59:59,003 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 08:59:59,003 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 08:59:59,003 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 08:59:59,004 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 08:59:59,004 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 08:59:59,004 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 08:59:59,005 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6c4f2ab200ae95c9ca275594b018c3497d9548a4085e649d22d856974a67d096 [2024-10-24 08:59:59,243 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 08:59:59,269 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 08:59:59,271 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 08:59:59,272 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 08:59:59,272 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 08:59:59,274 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-89.i [2024-10-24 09:00:00,669 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 09:00:00,842 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 09:00:00,843 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-89.i [2024-10-24 09:00:00,850 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f18000da3/b572df3c24c242d9a96fe06067088d6f/FLAG99c699262 [2024-10-24 09:00:00,863 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f18000da3/b572df3c24c242d9a96fe06067088d6f [2024-10-24 09:00:00,865 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 09:00:00,866 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 09:00:00,869 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 09:00:00,869 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 09:00:00,874 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 09:00:00,875 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:00:00" (1/1) ... [2024-10-24 09:00:00,876 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@311a5725 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:00:00, skipping insertion in model container [2024-10-24 09:00:00,876 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:00:00" (1/1) ... [2024-10-24 09:00:00,901 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 09:00:01,105 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-89.i[916,929] [2024-10-24 09:00:01,154 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 09:00:01,165 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 09:00:01,177 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-89.i[916,929] [2024-10-24 09:00:01,195 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 09:00:01,210 INFO L204 MainTranslator]: Completed translation [2024-10-24 09:00:01,210 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:00:01 WrapperNode [2024-10-24 09:00:01,210 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 09:00:01,211 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 09:00:01,211 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 09:00:01,211 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 09:00:01,216 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:00:01" (1/1) ... [2024-10-24 09:00:01,223 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:00:01" (1/1) ... [2024-10-24 09:00:01,257 INFO L138 Inliner]: procedures = 26, calls = 26, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 141 [2024-10-24 09:00:01,257 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 09:00:01,258 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 09:00:01,258 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 09:00:01,258 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 09:00:01,278 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:00:01" (1/1) ... [2024-10-24 09:00:01,278 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:00:01" (1/1) ... [2024-10-24 09:00:01,281 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:00:01" (1/1) ... [2024-10-24 09:00:01,294 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-24 09:00:01,294 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:00:01" (1/1) ... [2024-10-24 09:00:01,294 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:00:01" (1/1) ... [2024-10-24 09:00:01,300 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:00:01" (1/1) ... [2024-10-24 09:00:01,303 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:00:01" (1/1) ... [2024-10-24 09:00:01,305 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:00:01" (1/1) ... [2024-10-24 09:00:01,306 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:00:01" (1/1) ... [2024-10-24 09:00:01,309 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 09:00:01,310 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 09:00:01,310 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 09:00:01,311 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 09:00:01,312 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:00:01" (1/1) ... [2024-10-24 09:00:01,318 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 09:00:01,341 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 09:00:01,361 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-24 09:00:01,365 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-24 09:00:01,409 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 09:00:01,409 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-24 09:00:01,410 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-24 09:00:01,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 09:00:01,410 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 09:00:01,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 09:00:01,480 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 09:00:01,482 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 09:00:01,816 INFO L? ?]: Removed 15 outVars from TransFormulas that were not future-live. [2024-10-24 09:00:01,816 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 09:00:01,848 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 09:00:01,848 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-24 09:00:01,848 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:00:01 BoogieIcfgContainer [2024-10-24 09:00:01,849 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 09:00:01,850 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 09:00:01,850 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 09:00:01,853 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 09:00:01,853 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 09:00:00" (1/3) ... [2024-10-24 09:00:01,853 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20e1ee27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:00:01, skipping insertion in model container [2024-10-24 09:00:01,854 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:00:01" (2/3) ... [2024-10-24 09:00:01,854 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20e1ee27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:00:01, skipping insertion in model container [2024-10-24 09:00:01,854 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:00:01" (3/3) ... [2024-10-24 09:00:01,855 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-89.i [2024-10-24 09:00:01,869 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 09:00:01,869 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-24 09:00:01,918 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 09:00:01,924 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;@1b66d7fe, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 09:00:01,924 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-24 09:00:01,928 INFO L276 IsEmpty]: Start isEmpty. Operand has 57 states, 41 states have (on average 1.5121951219512195) internal successors, (62), 42 states have internal predecessors, (62), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-10-24 09:00:01,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-10-24 09:00:01,941 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 09:00:01,942 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 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] [2024-10-24 09:00:01,943 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 09:00:01,948 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 09:00:01,949 INFO L85 PathProgramCache]: Analyzing trace with hash -1045799969, now seen corresponding path program 1 times [2024-10-24 09:00:01,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 09:00:01,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123368273] [2024-10-24 09:00:01,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 09:00:01,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 09:00:02,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:02,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 09:00:02,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:02,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 09:00:02,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:02,174 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 09:00:02,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:02,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 09:00:02,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:02,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-24 09:00:02,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:02,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 09:00:02,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:02,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 09:00:02,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:02,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 09:00:02,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:02,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-24 09:00:02,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:02,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 09:00:02,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:02,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 09:00:02,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:02,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 09:00:02,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:02,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-24 09:00:02,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:02,254 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-10-24 09:00:02,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 09:00:02,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123368273] [2024-10-24 09:00:02,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123368273] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 09:00:02,259 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 09:00:02,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 09:00:02,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858902354] [2024-10-24 09:00:02,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 09:00:02,268 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-24 09:00:02,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 09:00:02,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-24 09:00:02,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 09:00:02,295 INFO L87 Difference]: Start difference. First operand has 57 states, 41 states have (on average 1.5121951219512195) internal successors, (62), 42 states have internal predecessors, (62), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-24 09:00:02,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 09:00:02,335 INFO L93 Difference]: Finished difference Result 111 states and 187 transitions. [2024-10-24 09:00:02,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-24 09:00:02,338 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) Word has length 83 [2024-10-24 09:00:02,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 09:00:02,345 INFO L225 Difference]: With dead ends: 111 [2024-10-24 09:00:02,346 INFO L226 Difference]: Without dead ends: 55 [2024-10-24 09:00:02,349 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 09:00:02,355 INFO L432 NwaCegarLoop]: 78 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 09:00:02,356 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 78 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 09:00:02,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2024-10-24 09:00:02,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2024-10-24 09:00:02,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 40 states have (on average 1.375) internal successors, (55), 40 states have internal predecessors, (55), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-10-24 09:00:02,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 81 transitions. [2024-10-24 09:00:02,392 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 81 transitions. Word has length 83 [2024-10-24 09:00:02,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 09:00:02,393 INFO L471 AbstractCegarLoop]: Abstraction has 55 states and 81 transitions. [2024-10-24 09:00:02,393 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-24 09:00:02,393 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 81 transitions. [2024-10-24 09:00:02,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-10-24 09:00:02,396 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 09:00:02,396 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 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] [2024-10-24 09:00:02,397 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 09:00:02,397 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 09:00:02,397 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 09:00:02,398 INFO L85 PathProgramCache]: Analyzing trace with hash -1716979615, now seen corresponding path program 1 times [2024-10-24 09:00:02,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 09:00:02,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612219395] [2024-10-24 09:00:02,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 09:00:02,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 09:00:02,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:03,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 09:00:03,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:03,017 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 09:00:03,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:03,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 09:00:03,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:03,032 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 09:00:03,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:03,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-24 09:00:03,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:03,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 09:00:03,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:03,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 09:00:03,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:03,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 09:00:03,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:03,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-24 09:00:03,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:03,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 09:00:03,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:03,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 09:00:03,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:03,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 09:00:03,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:03,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-24 09:00:03,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:03,104 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-10-24 09:00:03,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 09:00:03,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612219395] [2024-10-24 09:00:03,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612219395] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 09:00:03,105 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 09:00:03,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 09:00:03,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900974456] [2024-10-24 09:00:03,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 09:00:03,107 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 09:00:03,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 09:00:03,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 09:00:03,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 09:00:03,111 INFO L87 Difference]: Start difference. First operand 55 states and 81 transitions. Second operand has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-10-24 09:00:03,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 09:00:03,351 INFO L93 Difference]: Finished difference Result 164 states and 242 transitions. [2024-10-24 09:00:03,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 09:00:03,352 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 83 [2024-10-24 09:00:03,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 09:00:03,355 INFO L225 Difference]: With dead ends: 164 [2024-10-24 09:00:03,355 INFO L226 Difference]: Without dead ends: 110 [2024-10-24 09:00:03,356 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-24 09:00:03,357 INFO L432 NwaCegarLoop]: 75 mSDtfsCounter, 58 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 266 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 09:00:03,357 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 266 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 09:00:03,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2024-10-24 09:00:03,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 80. [2024-10-24 09:00:03,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 51 states have (on average 1.2941176470588236) internal successors, (66), 51 states have internal predecessors, (66), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-10-24 09:00:03,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 118 transitions. [2024-10-24 09:00:03,388 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 118 transitions. Word has length 83 [2024-10-24 09:00:03,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 09:00:03,389 INFO L471 AbstractCegarLoop]: Abstraction has 80 states and 118 transitions. [2024-10-24 09:00:03,390 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-10-24 09:00:03,390 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 118 transitions. [2024-10-24 09:00:03,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-10-24 09:00:03,394 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 09:00:03,394 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 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] [2024-10-24 09:00:03,394 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 09:00:03,396 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 09:00:03,396 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 09:00:03,397 INFO L85 PathProgramCache]: Analyzing trace with hash -2110006625, now seen corresponding path program 1 times [2024-10-24 09:00:03,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 09:00:03,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968669631] [2024-10-24 09:00:03,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 09:00:03,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 09:00:03,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:06,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 09:00:06,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:06,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 09:00:06,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:06,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 09:00:06,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:06,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 09:00:06,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:06,166 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-24 09:00:06,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:06,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 09:00:06,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:06,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 09:00:06,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:06,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 09:00:06,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:06,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-24 09:00:06,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:06,182 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 09:00:06,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:06,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 09:00:06,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:06,202 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 09:00:06,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:06,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-24 09:00:06,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:06,207 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-10-24 09:00:06,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 09:00:06,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968669631] [2024-10-24 09:00:06,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1968669631] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 09:00:06,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 09:00:06,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 09:00:06,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061655850] [2024-10-24 09:00:06,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 09:00:06,210 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 09:00:06,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 09:00:06,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 09:00:06,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-24 09:00:06,212 INFO L87 Difference]: Start difference. First operand 80 states and 118 transitions. Second operand has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-10-24 09:00:06,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 09:00:06,689 INFO L93 Difference]: Finished difference Result 162 states and 238 transitions. [2024-10-24 09:00:06,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 09:00:06,690 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 83 [2024-10-24 09:00:06,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 09:00:06,693 INFO L225 Difference]: With dead ends: 162 [2024-10-24 09:00:06,693 INFO L226 Difference]: Without dead ends: 108 [2024-10-24 09:00:06,694 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-10-24 09:00:06,696 INFO L432 NwaCegarLoop]: 51 mSDtfsCounter, 76 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 09:00:06,696 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 188 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 09:00:06,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2024-10-24 09:00:06,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 91. [2024-10-24 09:00:06,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 62 states have (on average 1.3387096774193548) internal successors, (83), 62 states have internal predecessors, (83), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-10-24 09:00:06,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 135 transitions. [2024-10-24 09:00:06,712 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 135 transitions. Word has length 83 [2024-10-24 09:00:06,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 09:00:06,712 INFO L471 AbstractCegarLoop]: Abstraction has 91 states and 135 transitions. [2024-10-24 09:00:06,713 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-10-24 09:00:06,713 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 135 transitions. [2024-10-24 09:00:06,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-10-24 09:00:06,714 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 09:00:06,714 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 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] [2024-10-24 09:00:06,715 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 09:00:06,715 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 09:00:06,715 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 09:00:06,715 INFO L85 PathProgramCache]: Analyzing trace with hash 1375614045, now seen corresponding path program 1 times [2024-10-24 09:00:06,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 09:00:06,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165961272] [2024-10-24 09:00:06,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 09:00:06,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 09:00:06,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:08,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 09:00:08,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:08,582 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 09:00:08,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:08,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 09:00:08,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:08,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 09:00:08,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:08,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-24 09:00:08,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:08,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 09:00:08,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:08,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 09:00:08,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:08,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 09:00:08,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:08,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-24 09:00:08,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:08,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 09:00:08,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:08,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 09:00:08,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:08,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 09:00:08,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:08,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-24 09:00:08,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:08,604 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-10-24 09:00:08,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 09:00:08,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165961272] [2024-10-24 09:00:08,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1165961272] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 09:00:08,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 09:00:08,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 09:00:08,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275352452] [2024-10-24 09:00:08,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 09:00:08,607 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 09:00:08,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 09:00:08,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 09:00:08,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-24 09:00:08,608 INFO L87 Difference]: Start difference. First operand 91 states and 135 transitions. Second operand has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-10-24 09:00:09,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 09:00:09,052 INFO L93 Difference]: Finished difference Result 173 states and 254 transitions. [2024-10-24 09:00:09,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 09:00:09,053 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 83 [2024-10-24 09:00:09,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 09:00:09,054 INFO L225 Difference]: With dead ends: 173 [2024-10-24 09:00:09,054 INFO L226 Difference]: Without dead ends: 108 [2024-10-24 09:00:09,055 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-10-24 09:00:09,056 INFO L432 NwaCegarLoop]: 63 mSDtfsCounter, 75 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 09:00:09,056 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 189 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 09:00:09,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2024-10-24 09:00:09,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 80. [2024-10-24 09:00:09,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 51 states have (on average 1.2745098039215685) internal successors, (65), 51 states have internal predecessors, (65), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-10-24 09:00:09,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 117 transitions. [2024-10-24 09:00:09,070 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 117 transitions. Word has length 83 [2024-10-24 09:00:09,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 09:00:09,071 INFO L471 AbstractCegarLoop]: Abstraction has 80 states and 117 transitions. [2024-10-24 09:00:09,071 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-10-24 09:00:09,071 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 117 transitions. [2024-10-24 09:00:09,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-10-24 09:00:09,072 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 09:00:09,072 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 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] [2024-10-24 09:00:09,073 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 09:00:09,073 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 09:00:09,073 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 09:00:09,073 INFO L85 PathProgramCache]: Analyzing trace with hash -1726763130, now seen corresponding path program 1 times [2024-10-24 09:00:09,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 09:00:09,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625964496] [2024-10-24 09:00:09,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 09:00:09,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 09:00:09,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:09,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 09:00:09,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:09,620 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 09:00:09,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:09,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 09:00:09,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:09,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 09:00:09,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:09,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-24 09:00:09,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:09,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 09:00:09,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:09,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 09:00:09,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:09,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 09:00:09,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:09,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-24 09:00:09,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:09,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 09:00:09,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:09,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 09:00:09,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:09,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 09:00:09,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:09,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-24 09:00:09,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:09,659 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-10-24 09:00:09,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 09:00:09,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625964496] [2024-10-24 09:00:09,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1625964496] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 09:00:09,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 09:00:09,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-24 09:00:09,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986249678] [2024-10-24 09:00:09,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 09:00:09,660 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-24 09:00:09,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 09:00:09,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 09:00:09,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-10-24 09:00:09,663 INFO L87 Difference]: Start difference. First operand 80 states and 117 transitions. Second operand has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-10-24 09:00:10,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 09:00:10,148 INFO L93 Difference]: Finished difference Result 196 states and 285 transitions. [2024-10-24 09:00:10,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-24 09:00:10,149 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 85 [2024-10-24 09:00:10,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 09:00:10,151 INFO L225 Difference]: With dead ends: 196 [2024-10-24 09:00:10,152 INFO L226 Difference]: Without dead ends: 142 [2024-10-24 09:00:10,153 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2024-10-24 09:00:10,156 INFO L432 NwaCegarLoop]: 86 mSDtfsCounter, 168 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 329 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 261 SdHoareTripleChecker+Invalid, 362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 09:00:10,157 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 261 Invalid, 362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 329 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 09:00:10,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2024-10-24 09:00:10,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 138. [2024-10-24 09:00:10,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 95 states have (on average 1.231578947368421) internal successors, (117), 95 states have internal predecessors, (117), 39 states have call successors, (39), 3 states have call predecessors, (39), 3 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-10-24 09:00:10,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 195 transitions. [2024-10-24 09:00:10,194 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 195 transitions. Word has length 85 [2024-10-24 09:00:10,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 09:00:10,194 INFO L471 AbstractCegarLoop]: Abstraction has 138 states and 195 transitions. [2024-10-24 09:00:10,194 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-10-24 09:00:10,194 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 195 transitions. [2024-10-24 09:00:10,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-10-24 09:00:10,195 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 09:00:10,195 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 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] [2024-10-24 09:00:10,195 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 09:00:10,196 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 09:00:10,196 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 09:00:10,196 INFO L85 PathProgramCache]: Analyzing trace with hash -1907132730, now seen corresponding path program 1 times [2024-10-24 09:00:10,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 09:00:10,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949712188] [2024-10-24 09:00:10,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 09:00:10,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 09:00:10,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:10,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 09:00:10,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:10,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 09:00:10,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:10,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 09:00:10,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:10,320 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 09:00:10,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:10,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-24 09:00:10,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:10,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 09:00:10,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:10,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 09:00:10,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:10,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 09:00:10,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:10,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-24 09:00:10,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:10,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 09:00:10,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:10,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 09:00:10,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:10,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 09:00:10,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:10,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-24 09:00:10,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:10,342 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-10-24 09:00:10,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 09:00:10,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949712188] [2024-10-24 09:00:10,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949712188] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 09:00:10,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 09:00:10,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 09:00:10,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154339677] [2024-10-24 09:00:10,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 09:00:10,343 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 09:00:10,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 09:00:10,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 09:00:10,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 09:00:10,344 INFO L87 Difference]: Start difference. First operand 138 states and 195 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-10-24 09:00:10,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 09:00:10,465 INFO L93 Difference]: Finished difference Result 260 states and 364 transitions. [2024-10-24 09:00:10,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 09:00:10,467 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 87 [2024-10-24 09:00:10,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 09:00:10,469 INFO L225 Difference]: With dead ends: 260 [2024-10-24 09:00:10,469 INFO L226 Difference]: Without dead ends: 148 [2024-10-24 09:00:10,470 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 09:00:10,471 INFO L432 NwaCegarLoop]: 75 mSDtfsCounter, 5 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 09:00:10,471 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 136 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 09:00:10,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2024-10-24 09:00:10,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 144. [2024-10-24 09:00:10,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 101 states have (on average 1.2178217821782178) internal successors, (123), 101 states have internal predecessors, (123), 39 states have call successors, (39), 3 states have call predecessors, (39), 3 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-10-24 09:00:10,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 201 transitions. [2024-10-24 09:00:10,498 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 201 transitions. Word has length 87 [2024-10-24 09:00:10,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 09:00:10,499 INFO L471 AbstractCegarLoop]: Abstraction has 144 states and 201 transitions. [2024-10-24 09:00:10,499 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-10-24 09:00:10,499 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 201 transitions. [2024-10-24 09:00:10,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-10-24 09:00:10,500 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 09:00:10,500 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 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] [2024-10-24 09:00:10,500 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 09:00:10,500 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 09:00:10,500 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 09:00:10,501 INFO L85 PathProgramCache]: Analyzing trace with hash -965461757, now seen corresponding path program 1 times [2024-10-24 09:00:10,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 09:00:10,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12517054] [2024-10-24 09:00:10,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 09:00:10,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 09:00:10,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:11,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 09:00:11,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:11,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 09:00:11,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:11,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 09:00:11,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:11,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 09:00:11,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:11,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-24 09:00:11,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:11,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 09:00:11,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:11,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 09:00:11,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:11,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 09:00:11,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:11,214 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-24 09:00:11,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:11,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 09:00:11,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:11,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 09:00:11,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:11,222 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 09:00:11,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:11,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-24 09:00:11,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:11,227 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-10-24 09:00:11,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 09:00:11,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12517054] [2024-10-24 09:00:11,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12517054] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 09:00:11,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 09:00:11,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-24 09:00:11,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017515612] [2024-10-24 09:00:11,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 09:00:11,228 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 09:00:11,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 09:00:11,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 09:00:11,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-10-24 09:00:11,229 INFO L87 Difference]: Start difference. First operand 144 states and 201 transitions. Second operand has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-10-24 09:00:11,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 09:00:11,642 INFO L93 Difference]: Finished difference Result 153 states and 209 transitions. [2024-10-24 09:00:11,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 09:00:11,643 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 88 [2024-10-24 09:00:11,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 09:00:11,648 INFO L225 Difference]: With dead ends: 153 [2024-10-24 09:00:11,648 INFO L226 Difference]: Without dead ends: 151 [2024-10-24 09:00:11,648 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2024-10-24 09:00:11,649 INFO L432 NwaCegarLoop]: 91 mSDtfsCounter, 94 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 273 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 09:00:11,649 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 334 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 273 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 09:00:11,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2024-10-24 09:00:11,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 145. [2024-10-24 09:00:11,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 102 states have (on average 1.2156862745098038) internal successors, (124), 102 states have internal predecessors, (124), 39 states have call successors, (39), 3 states have call predecessors, (39), 3 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-10-24 09:00:11,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 202 transitions. [2024-10-24 09:00:11,674 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 202 transitions. Word has length 88 [2024-10-24 09:00:11,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 09:00:11,675 INFO L471 AbstractCegarLoop]: Abstraction has 145 states and 202 transitions. [2024-10-24 09:00:11,675 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-10-24 09:00:11,675 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 202 transitions. [2024-10-24 09:00:11,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-10-24 09:00:11,676 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 09:00:11,676 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 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] [2024-10-24 09:00:11,676 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-24 09:00:11,676 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 09:00:11,676 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 09:00:11,676 INFO L85 PathProgramCache]: Analyzing trace with hash 1500733303, now seen corresponding path program 1 times [2024-10-24 09:00:11,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 09:00:11,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783316352] [2024-10-24 09:00:11,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 09:00:11,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 09:00:11,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:11,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 09:00:11,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:11,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 09:00:11,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:11,737 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 09:00:11,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:11,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 09:00:11,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:11,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-24 09:00:11,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:11,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 09:00:11,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:11,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 09:00:11,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:11,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 09:00:11,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:11,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-24 09:00:11,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:11,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 09:00:11,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:11,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 09:00:11,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:11,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 09:00:11,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:11,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-24 09:00:11,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:11,753 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-10-24 09:00:11,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 09:00:11,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783316352] [2024-10-24 09:00:11,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783316352] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 09:00:11,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 09:00:11,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 09:00:11,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698152847] [2024-10-24 09:00:11,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 09:00:11,754 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 09:00:11,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 09:00:11,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 09:00:11,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 09:00:11,755 INFO L87 Difference]: Start difference. First operand 145 states and 202 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-10-24 09:00:11,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 09:00:11,811 INFO L93 Difference]: Finished difference Result 320 states and 437 transitions. [2024-10-24 09:00:11,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 09:00:11,812 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 95 [2024-10-24 09:00:11,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 09:00:11,813 INFO L225 Difference]: With dead ends: 320 [2024-10-24 09:00:11,813 INFO L226 Difference]: Without dead ends: 201 [2024-10-24 09:00:11,814 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 09:00:11,815 INFO L432 NwaCegarLoop]: 83 mSDtfsCounter, 29 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 09:00:11,815 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 147 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 09:00:11,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2024-10-24 09:00:11,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 197. [2024-10-24 09:00:11,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 137 states have (on average 1.1824817518248176) internal successors, (162), 139 states have internal predecessors, (162), 53 states have call successors, (53), 6 states have call predecessors, (53), 6 states have return successors, (53), 51 states have call predecessors, (53), 53 states have call successors, (53) [2024-10-24 09:00:11,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 268 transitions. [2024-10-24 09:00:11,844 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 268 transitions. Word has length 95 [2024-10-24 09:00:11,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 09:00:11,844 INFO L471 AbstractCegarLoop]: Abstraction has 197 states and 268 transitions. [2024-10-24 09:00:11,845 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-10-24 09:00:11,845 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 268 transitions. [2024-10-24 09:00:11,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-10-24 09:00:11,846 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 09:00:11,846 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 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] [2024-10-24 09:00:11,846 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-24 09:00:11,846 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 09:00:11,847 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 09:00:11,847 INFO L85 PathProgramCache]: Analyzing trace with hash -1510365528, now seen corresponding path program 1 times [2024-10-24 09:00:11,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 09:00:11,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855646716] [2024-10-24 09:00:11,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 09:00:11,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 09:00:11,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:12,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 09:00:12,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:12,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 09:00:12,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:12,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 09:00:12,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:12,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 09:00:12,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:12,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-24 09:00:12,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:12,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 09:00:12,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:12,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 09:00:12,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:12,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 09:00:12,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:12,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-24 09:00:12,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:12,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 09:00:12,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:12,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 09:00:12,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:12,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 09:00:12,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:12,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-24 09:00:12,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:12,963 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-10-24 09:00:12,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 09:00:12,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855646716] [2024-10-24 09:00:12,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855646716] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 09:00:12,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 09:00:12,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-10-24 09:00:12,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131551907] [2024-10-24 09:00:12,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 09:00:12,965 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-24 09:00:12,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 09:00:12,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-24 09:00:12,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2024-10-24 09:00:12,966 INFO L87 Difference]: Start difference. First operand 197 states and 268 transitions. Second operand has 13 states, 13 states have (on average 3.0) internal successors, (39), 13 states have internal predecessors, (39), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-10-24 09:00:14,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 09:00:14,132 INFO L93 Difference]: Finished difference Result 239 states and 311 transitions. [2024-10-24 09:00:14,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-10-24 09:00:14,133 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.0) internal successors, (39), 13 states have internal predecessors, (39), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 101 [2024-10-24 09:00:14,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 09:00:14,135 INFO L225 Difference]: With dead ends: 239 [2024-10-24 09:00:14,136 INFO L226 Difference]: Without dead ends: 237 [2024-10-24 09:00:14,136 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=213, Invalid=717, Unknown=0, NotChecked=0, Total=930 [2024-10-24 09:00:14,138 INFO L432 NwaCegarLoop]: 91 mSDtfsCounter, 149 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 834 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 450 SdHoareTripleChecker+Invalid, 862 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 834 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-24 09:00:14,138 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 450 Invalid, 862 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 834 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-24 09:00:14,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2024-10-24 09:00:14,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 209. [2024-10-24 09:00:14,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 149 states have (on average 1.1812080536912752) internal successors, (176), 151 states have internal predecessors, (176), 53 states have call successors, (53), 6 states have call predecessors, (53), 6 states have return successors, (53), 51 states have call predecessors, (53), 53 states have call successors, (53) [2024-10-24 09:00:14,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 282 transitions. [2024-10-24 09:00:14,162 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 282 transitions. Word has length 101 [2024-10-24 09:00:14,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 09:00:14,163 INFO L471 AbstractCegarLoop]: Abstraction has 209 states and 282 transitions. [2024-10-24 09:00:14,163 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.0) internal successors, (39), 13 states have internal predecessors, (39), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-10-24 09:00:14,163 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 282 transitions. [2024-10-24 09:00:14,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-10-24 09:00:14,165 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 09:00:14,165 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 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] [2024-10-24 09:00:14,165 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-24 09:00:14,165 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 09:00:14,165 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 09:00:14,166 INFO L85 PathProgramCache]: Analyzing trace with hash 77982374, now seen corresponding path program 1 times [2024-10-24 09:00:14,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 09:00:14,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281429812] [2024-10-24 09:00:14,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 09:00:14,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 09:00:14,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:14,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 09:00:14,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:14,265 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 09:00:14,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:14,267 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 09:00:14,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:14,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 09:00:14,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:14,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-24 09:00:14,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:14,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 09:00:14,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:14,278 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 09:00:14,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:14,280 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 09:00:14,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:14,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-24 09:00:14,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:14,283 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 09:00:14,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:14,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 09:00:14,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:14,288 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 09:00:14,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:14,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-24 09:00:14,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:14,291 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-10-24 09:00:14,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 09:00:14,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281429812] [2024-10-24 09:00:14,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [281429812] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 09:00:14,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 09:00:14,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 09:00:14,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138352492] [2024-10-24 09:00:14,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 09:00:14,293 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 09:00:14,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 09:00:14,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 09:00:14,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 09:00:14,294 INFO L87 Difference]: Start difference. First operand 209 states and 282 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-10-24 09:00:14,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 09:00:14,387 INFO L93 Difference]: Finished difference Result 373 states and 505 transitions. [2024-10-24 09:00:14,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 09:00:14,389 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 101 [2024-10-24 09:00:14,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 09:00:14,391 INFO L225 Difference]: With dead ends: 373 [2024-10-24 09:00:14,391 INFO L226 Difference]: Without dead ends: 194 [2024-10-24 09:00:14,392 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-24 09:00:14,392 INFO L432 NwaCegarLoop]: 66 mSDtfsCounter, 39 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 179 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 09:00:14,392 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 179 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 09:00:14,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2024-10-24 09:00:14,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 194. [2024-10-24 09:00:14,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 134 states have (on average 1.171641791044776) internal successors, (157), 136 states have internal predecessors, (157), 53 states have call successors, (53), 6 states have call predecessors, (53), 6 states have return successors, (53), 51 states have call predecessors, (53), 53 states have call successors, (53) [2024-10-24 09:00:14,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 263 transitions. [2024-10-24 09:00:14,413 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 263 transitions. Word has length 101 [2024-10-24 09:00:14,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 09:00:14,415 INFO L471 AbstractCegarLoop]: Abstraction has 194 states and 263 transitions. [2024-10-24 09:00:14,415 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-10-24 09:00:14,415 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 263 transitions. [2024-10-24 09:00:14,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-10-24 09:00:14,417 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 09:00:14,417 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 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, 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, 1, 1, 1] [2024-10-24 09:00:14,417 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-24 09:00:14,417 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 09:00:14,418 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 09:00:14,418 INFO L85 PathProgramCache]: Analyzing trace with hash 1897851069, now seen corresponding path program 1 times [2024-10-24 09:00:14,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 09:00:14,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529611232] [2024-10-24 09:00:14,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 09:00:14,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 09:00:14,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:14,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 09:00:14,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:14,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 09:00:14,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:14,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 09:00:14,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:14,980 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 09:00:14,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:14,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-24 09:00:14,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:14,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 09:00:14,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:14,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 09:00:14,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:14,984 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 09:00:14,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:14,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-24 09:00:14,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:14,986 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 09:00:14,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:14,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 09:00:14,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:14,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 09:00:14,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:14,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-24 09:00:14,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:14,991 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 09:00:14,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:14,992 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-24 09:00:14,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:14,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-24 09:00:14,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:14,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-24 09:00:14,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:14,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 09:00:14,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:14,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-24 09:00:14,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:14,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-24 09:00:14,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:15,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-10-24 09:00:15,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:15,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-10-24 09:00:15,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:15,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-10-24 09:00:15,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:15,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-10-24 09:00:15,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:15,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-10-24 09:00:15,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:15,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-10-24 09:00:15,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:15,007 INFO L134 CoverageAnalysis]: Checked inductivity of 1331 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 1322 trivial. 0 not checked. [2024-10-24 09:00:15,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 09:00:15,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529611232] [2024-10-24 09:00:15,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529611232] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 09:00:15,008 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 09:00:15,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-24 09:00:15,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243473970] [2024-10-24 09:00:15,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 09:00:15,009 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-24 09:00:15,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 09:00:15,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 09:00:15,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-10-24 09:00:15,010 INFO L87 Difference]: Start difference. First operand 194 states and 263 transitions. Second operand has 8 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-10-24 09:00:15,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 09:00:15,235 INFO L93 Difference]: Finished difference Result 201 states and 269 transitions. [2024-10-24 09:00:15,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-24 09:00:15,235 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 172 [2024-10-24 09:00:15,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 09:00:15,237 INFO L225 Difference]: With dead ends: 201 [2024-10-24 09:00:15,237 INFO L226 Difference]: Without dead ends: 199 [2024-10-24 09:00:15,237 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-10-24 09:00:15,238 INFO L432 NwaCegarLoop]: 86 mSDtfsCounter, 103 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 295 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 09:00:15,238 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 295 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 09:00:15,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2024-10-24 09:00:15,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 191. [2024-10-24 09:00:15,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 131 states have (on average 1.16793893129771) internal successors, (153), 133 states have internal predecessors, (153), 53 states have call successors, (53), 6 states have call predecessors, (53), 6 states have return successors, (53), 51 states have call predecessors, (53), 53 states have call successors, (53) [2024-10-24 09:00:15,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 259 transitions. [2024-10-24 09:00:15,261 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 259 transitions. Word has length 172 [2024-10-24 09:00:15,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 09:00:15,264 INFO L471 AbstractCegarLoop]: Abstraction has 191 states and 259 transitions. [2024-10-24 09:00:15,264 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-10-24 09:00:15,265 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 259 transitions. [2024-10-24 09:00:15,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-10-24 09:00:15,267 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 09:00:15,267 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 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, 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, 1, 1, 1, 1, 1, 1] [2024-10-24 09:00:15,267 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-24 09:00:15,267 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 09:00:15,267 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 09:00:15,268 INFO L85 PathProgramCache]: Analyzing trace with hash -1881337618, now seen corresponding path program 1 times [2024-10-24 09:00:15,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 09:00:15,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472278410] [2024-10-24 09:00:15,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 09:00:15,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 09:00:15,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:17,341 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 09:00:17,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:17,342 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 09:00:17,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:17,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 09:00:17,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:17,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 09:00:17,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:17,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-24 09:00:17,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:17,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 09:00:17,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:17,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 09:00:17,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:17,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 09:00:17,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:17,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-24 09:00:17,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:17,352 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 09:00:17,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:17,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 09:00:17,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:17,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 09:00:17,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:17,355 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-24 09:00:17,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:17,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 09:00:17,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:17,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-24 09:00:17,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:17,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-24 09:00:17,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:17,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-24 09:00:17,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:17,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 09:00:17,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:17,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-24 09:00:17,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:17,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-24 09:00:17,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:17,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-10-24 09:00:17,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:17,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-10-24 09:00:17,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:17,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-10-24 09:00:17,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:17,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-10-24 09:00:17,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:17,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-10-24 09:00:17,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:17,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-10-24 09:00:17,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:17,372 INFO L134 CoverageAnalysis]: Checked inductivity of 1331 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 1321 trivial. 0 not checked. [2024-10-24 09:00:17,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 09:00:17,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472278410] [2024-10-24 09:00:17,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472278410] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 09:00:17,373 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 09:00:17,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-10-24 09:00:17,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85093285] [2024-10-24 09:00:17,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 09:00:17,373 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-24 09:00:17,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 09:00:17,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-24 09:00:17,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2024-10-24 09:00:17,374 INFO L87 Difference]: Start difference. First operand 191 states and 259 transitions. Second operand has 13 states, 13 states have (on average 3.1538461538461537) internal successors, (41), 13 states have internal predecessors, (41), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-10-24 09:00:18,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 09:00:18,251 INFO L93 Difference]: Finished difference Result 371 states and 502 transitions. [2024-10-24 09:00:18,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-24 09:00:18,251 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.1538461538461537) internal successors, (41), 13 states have internal predecessors, (41), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 175 [2024-10-24 09:00:18,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 09:00:18,255 INFO L225 Difference]: With dead ends: 371 [2024-10-24 09:00:18,255 INFO L226 Difference]: Without dead ends: 288 [2024-10-24 09:00:18,256 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=90, Invalid=252, Unknown=0, NotChecked=0, Total=342 [2024-10-24 09:00:18,257 INFO L432 NwaCegarLoop]: 107 mSDtfsCounter, 126 mSDsluCounter, 502 mSDsCounter, 0 mSdLazyCounter, 610 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 609 SdHoareTripleChecker+Invalid, 613 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 610 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-24 09:00:18,258 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 609 Invalid, 613 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 610 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-24 09:00:18,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2024-10-24 09:00:18,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 271. [2024-10-24 09:00:18,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 193 states have (on average 1.1968911917098446) internal successors, (231), 197 states have internal predecessors, (231), 69 states have call successors, (69), 8 states have call predecessors, (69), 8 states have return successors, (69), 65 states have call predecessors, (69), 69 states have call successors, (69) [2024-10-24 09:00:18,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 369 transitions. [2024-10-24 09:00:18,294 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 369 transitions. Word has length 175 [2024-10-24 09:00:18,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 09:00:18,294 INFO L471 AbstractCegarLoop]: Abstraction has 271 states and 369 transitions. [2024-10-24 09:00:18,294 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.1538461538461537) internal successors, (41), 13 states have internal predecessors, (41), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-10-24 09:00:18,294 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 369 transitions. [2024-10-24 09:00:18,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-10-24 09:00:18,296 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 09:00:18,296 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 09:00:18,297 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-24 09:00:18,297 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 09:00:18,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 09:00:18,297 INFO L85 PathProgramCache]: Analyzing trace with hash 167130338, now seen corresponding path program 1 times [2024-10-24 09:00:18,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 09:00:18,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166276892] [2024-10-24 09:00:18,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 09:00:18,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 09:00:18,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:18,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 09:00:18,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:18,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 09:00:18,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:18,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 09:00:18,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:18,355 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 09:00:18,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:18,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-24 09:00:18,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:18,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 09:00:18,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:18,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 09:00:18,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:18,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 09:00:18,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:18,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-24 09:00:18,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:18,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 09:00:18,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:18,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 09:00:18,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:18,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 09:00:18,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:18,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-24 09:00:18,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:18,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 09:00:18,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:18,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-24 09:00:18,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:18,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-24 09:00:18,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:18,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-24 09:00:18,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:18,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 09:00:18,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:18,373 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-24 09:00:18,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:18,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-24 09:00:18,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:18,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-10-24 09:00:18,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:18,376 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-10-24 09:00:18,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:18,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-10-24 09:00:18,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:18,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-10-24 09:00:18,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:18,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-10-24 09:00:18,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:18,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-10-24 09:00:18,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:18,382 INFO L134 CoverageAnalysis]: Checked inductivity of 1331 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1325 trivial. 0 not checked. [2024-10-24 09:00:18,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 09:00:18,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166276892] [2024-10-24 09:00:18,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1166276892] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 09:00:18,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 09:00:18,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 09:00:18,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252864511] [2024-10-24 09:00:18,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 09:00:18,384 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 09:00:18,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 09:00:18,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 09:00:18,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 09:00:18,384 INFO L87 Difference]: Start difference. First operand 271 states and 369 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-10-24 09:00:18,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 09:00:18,469 INFO L93 Difference]: Finished difference Result 584 states and 799 transitions. [2024-10-24 09:00:18,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 09:00:18,469 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 178 [2024-10-24 09:00:18,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 09:00:18,472 INFO L225 Difference]: With dead ends: 584 [2024-10-24 09:00:18,472 INFO L226 Difference]: Without dead ends: 421 [2024-10-24 09:00:18,474 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 09:00:18,474 INFO L432 NwaCegarLoop]: 74 mSDtfsCounter, 60 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 09:00:18,474 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 127 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 09:00:18,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2024-10-24 09:00:18,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 276. [2024-10-24 09:00:18,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 276 states, 198 states have (on average 1.196969696969697) internal successors, (237), 202 states have internal predecessors, (237), 69 states have call successors, (69), 8 states have call predecessors, (69), 8 states have return successors, (69), 65 states have call predecessors, (69), 69 states have call successors, (69) [2024-10-24 09:00:18,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 375 transitions. [2024-10-24 09:00:18,521 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 375 transitions. Word has length 178 [2024-10-24 09:00:18,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 09:00:18,521 INFO L471 AbstractCegarLoop]: Abstraction has 276 states and 375 transitions. [2024-10-24 09:00:18,521 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-10-24 09:00:18,521 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 375 transitions. [2024-10-24 09:00:18,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-10-24 09:00:18,523 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 09:00:18,523 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 09:00:18,523 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-24 09:00:18,524 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 09:00:18,524 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 09:00:18,524 INFO L85 PathProgramCache]: Analyzing trace with hash 265665172, now seen corresponding path program 1 times [2024-10-24 09:00:18,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 09:00:18,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838910939] [2024-10-24 09:00:18,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 09:00:18,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 09:00:18,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:18,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 09:00:18,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:18,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 09:00:18,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:18,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 09:00:18,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:18,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 09:00:18,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:18,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-24 09:00:18,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:18,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 09:00:18,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:18,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 09:00:18,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:18,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 09:00:18,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:18,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-24 09:00:18,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:18,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 09:00:18,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:18,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 09:00:18,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:18,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 09:00:18,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:18,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-24 09:00:18,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:18,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 09:00:18,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:18,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-24 09:00:18,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:18,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-24 09:00:18,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:18,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-24 09:00:18,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:18,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 09:00:18,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:18,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-24 09:00:18,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:18,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-24 09:00:18,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:18,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-10-24 09:00:18,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:18,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-10-24 09:00:18,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:18,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-10-24 09:00:18,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:18,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-10-24 09:00:18,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:18,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-10-24 09:00:18,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:18,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-10-24 09:00:18,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:18,691 INFO L134 CoverageAnalysis]: Checked inductivity of 1331 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 1322 trivial. 0 not checked. [2024-10-24 09:00:18,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 09:00:18,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838910939] [2024-10-24 09:00:18,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838910939] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 09:00:18,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 09:00:18,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 09:00:18,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127056177] [2024-10-24 09:00:18,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 09:00:18,693 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 09:00:18,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 09:00:18,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 09:00:18,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-24 09:00:18,693 INFO L87 Difference]: Start difference. First operand 276 states and 375 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-10-24 09:00:18,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 09:00:18,838 INFO L93 Difference]: Finished difference Result 614 states and 837 transitions. [2024-10-24 09:00:18,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 09:00:18,838 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 181 [2024-10-24 09:00:18,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 09:00:18,843 INFO L225 Difference]: With dead ends: 614 [2024-10-24 09:00:18,843 INFO L226 Difference]: Without dead ends: 446 [2024-10-24 09:00:18,844 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-24 09:00:18,845 INFO L432 NwaCegarLoop]: 146 mSDtfsCounter, 125 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 09:00:18,845 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 245 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 09:00:18,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 446 states. [2024-10-24 09:00:18,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 446 to 382. [2024-10-24 09:00:18,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 382 states, 264 states have (on average 1.1401515151515151) internal successors, (301), 271 states have internal predecessors, (301), 105 states have call successors, (105), 12 states have call predecessors, (105), 12 states have return successors, (105), 98 states have call predecessors, (105), 105 states have call successors, (105) [2024-10-24 09:00:18,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 511 transitions. [2024-10-24 09:00:18,907 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 511 transitions. Word has length 181 [2024-10-24 09:00:18,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 09:00:18,908 INFO L471 AbstractCegarLoop]: Abstraction has 382 states and 511 transitions. [2024-10-24 09:00:18,908 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-10-24 09:00:18,908 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 511 transitions. [2024-10-24 09:00:18,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2024-10-24 09:00:18,910 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 09:00:18,910 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 09:00:18,910 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-24 09:00:18,910 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 09:00:18,910 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 09:00:18,910 INFO L85 PathProgramCache]: Analyzing trace with hash -678963922, now seen corresponding path program 1 times [2024-10-24 09:00:18,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 09:00:18,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980817525] [2024-10-24 09:00:18,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 09:00:18,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 09:00:18,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:21,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 09:00:21,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:21,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 09:00:21,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:21,182 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 09:00:21,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:21,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 09:00:21,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:21,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-24 09:00:21,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:21,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 09:00:21,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:21,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 09:00:21,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:21,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 09:00:21,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:21,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-24 09:00:21,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:21,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 09:00:21,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:21,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 09:00:21,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:21,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 09:00:21,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:21,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-24 09:00:21,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:21,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 09:00:21,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:21,195 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-24 09:00:21,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:21,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-24 09:00:21,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:21,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-24 09:00:21,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:21,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 09:00:21,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:21,199 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-24 09:00:21,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:21,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-24 09:00:21,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:21,202 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-10-24 09:00:21,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:21,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-10-24 09:00:21,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:21,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-10-24 09:00:21,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:21,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-10-24 09:00:21,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:21,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-10-24 09:00:21,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:21,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-10-24 09:00:21,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:21,209 INFO L134 CoverageAnalysis]: Checked inductivity of 1331 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 1321 trivial. 0 not checked. [2024-10-24 09:00:21,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 09:00:21,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980817525] [2024-10-24 09:00:21,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980817525] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 09:00:21,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 09:00:21,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-10-24 09:00:21,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118223092] [2024-10-24 09:00:21,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 09:00:21,210 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-24 09:00:21,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 09:00:21,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-24 09:00:21,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2024-10-24 09:00:21,212 INFO L87 Difference]: Start difference. First operand 382 states and 511 transitions. Second operand has 15 states, 15 states have (on average 3.4) internal successors, (51), 15 states have internal predecessors, (51), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-10-24 09:00:22,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 09:00:22,556 INFO L93 Difference]: Finished difference Result 425 states and 555 transitions. [2024-10-24 09:00:22,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-10-24 09:00:22,556 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.4) internal successors, (51), 15 states have internal predecessors, (51), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 185 [2024-10-24 09:00:22,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 09:00:22,559 INFO L225 Difference]: With dead ends: 425 [2024-10-24 09:00:22,559 INFO L226 Difference]: Without dead ends: 423 [2024-10-24 09:00:22,560 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=191, Invalid=565, Unknown=0, NotChecked=0, Total=756 [2024-10-24 09:00:22,560 INFO L432 NwaCegarLoop]: 113 mSDtfsCounter, 143 mSDsluCounter, 642 mSDsCounter, 0 mSdLazyCounter, 795 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 755 SdHoareTripleChecker+Invalid, 835 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 795 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-24 09:00:22,561 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 755 Invalid, 835 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 795 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-24 09:00:22,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2024-10-24 09:00:22,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 394. [2024-10-24 09:00:22,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 276 states have (on average 1.141304347826087) internal successors, (315), 283 states have internal predecessors, (315), 105 states have call successors, (105), 12 states have call predecessors, (105), 12 states have return successors, (105), 98 states have call predecessors, (105), 105 states have call successors, (105) [2024-10-24 09:00:22,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 525 transitions. [2024-10-24 09:00:22,648 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 525 transitions. Word has length 185 [2024-10-24 09:00:22,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 09:00:22,649 INFO L471 AbstractCegarLoop]: Abstraction has 394 states and 525 transitions. [2024-10-24 09:00:22,649 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.4) internal successors, (51), 15 states have internal predecessors, (51), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-10-24 09:00:22,649 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 525 transitions. [2024-10-24 09:00:22,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2024-10-24 09:00:22,651 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 09:00:22,651 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 09:00:22,651 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-24 09:00:22,651 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 09:00:22,652 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 09:00:22,652 INFO L85 PathProgramCache]: Analyzing trace with hash 909383980, now seen corresponding path program 1 times [2024-10-24 09:00:22,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 09:00:22,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75107724] [2024-10-24 09:00:22,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 09:00:22,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 09:00:22,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:22,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 09:00:22,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:22,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 09:00:22,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:22,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 09:00:22,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:22,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 09:00:22,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:22,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-24 09:00:22,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:22,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 09:00:22,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:22,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 09:00:22,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:22,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 09:00:22,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:22,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-24 09:00:22,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:22,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 09:00:22,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:22,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 09:00:22,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:22,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 09:00:22,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:22,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-24 09:00:22,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:22,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 09:00:22,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:22,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-24 09:00:22,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:22,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-24 09:00:22,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:22,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-24 09:00:22,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:22,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 09:00:22,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:22,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-24 09:00:22,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:22,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-24 09:00:22,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:22,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-10-24 09:00:22,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:22,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-10-24 09:00:22,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:22,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-10-24 09:00:22,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:22,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-10-24 09:00:22,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:22,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-10-24 09:00:22,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:22,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-10-24 09:00:22,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:22,893 INFO L134 CoverageAnalysis]: Checked inductivity of 1331 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 1322 trivial. 0 not checked. [2024-10-24 09:00:22,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 09:00:22,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75107724] [2024-10-24 09:00:22,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [75107724] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 09:00:22,895 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 09:00:22,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 09:00:22,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499366899] [2024-10-24 09:00:22,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 09:00:22,896 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 09:00:22,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 09:00:22,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 09:00:22,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-24 09:00:22,897 INFO L87 Difference]: Start difference. First operand 394 states and 525 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-10-24 09:00:23,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 09:00:23,156 INFO L93 Difference]: Finished difference Result 729 states and 974 transitions. [2024-10-24 09:00:23,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 09:00:23,157 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 185 [2024-10-24 09:00:23,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 09:00:23,160 INFO L225 Difference]: With dead ends: 729 [2024-10-24 09:00:23,160 INFO L226 Difference]: Without dead ends: 443 [2024-10-24 09:00:23,161 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-10-24 09:00:23,162 INFO L432 NwaCegarLoop]: 146 mSDtfsCounter, 132 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 285 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 09:00:23,162 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 285 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 09:00:23,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2024-10-24 09:00:23,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 379. [2024-10-24 09:00:23,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 379 states, 261 states have (on average 1.1302681992337165) internal successors, (295), 268 states have internal predecessors, (295), 105 states have call successors, (105), 12 states have call predecessors, (105), 12 states have return successors, (105), 98 states have call predecessors, (105), 105 states have call successors, (105) [2024-10-24 09:00:23,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 505 transitions. [2024-10-24 09:00:23,223 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 505 transitions. Word has length 185 [2024-10-24 09:00:23,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 09:00:23,225 INFO L471 AbstractCegarLoop]: Abstraction has 379 states and 505 transitions. [2024-10-24 09:00:23,225 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-10-24 09:00:23,225 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 505 transitions. [2024-10-24 09:00:23,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2024-10-24 09:00:23,228 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 09:00:23,228 INFO L215 NwaCegarLoop]: trace histogram [39, 39, 39, 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, 1, 1] [2024-10-24 09:00:23,228 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-24 09:00:23,229 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 09:00:23,229 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 09:00:23,229 INFO L85 PathProgramCache]: Analyzing trace with hash 434627634, now seen corresponding path program 2 times [2024-10-24 09:00:23,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 09:00:23,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506144530] [2024-10-24 09:00:23,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 09:00:23,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 09:00:23,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:25,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 09:00:25,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:25,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 09:00:25,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:25,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 09:00:25,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:25,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 09:00:25,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:25,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-24 09:00:25,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:25,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 09:00:25,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:25,195 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 09:00:25,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:25,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 09:00:25,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:25,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-24 09:00:25,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:25,199 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 09:00:25,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:25,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 09:00:25,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:25,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 09:00:25,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:25,202 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-24 09:00:25,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:25,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 09:00:25,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:25,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-24 09:00:25,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:25,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-24 09:00:25,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:25,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-24 09:00:25,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:25,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 09:00:25,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:25,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-24 09:00:25,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:25,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-24 09:00:25,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:25,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-10-24 09:00:25,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:25,211 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-10-24 09:00:25,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:25,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-10-24 09:00:25,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:25,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-10-24 09:00:25,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:25,214 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-10-24 09:00:25,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:25,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-10-24 09:00:25,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:25,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2024-10-24 09:00:25,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:25,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-10-24 09:00:25,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:25,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-24 09:00:25,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:25,231 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2024-10-24 09:00:25,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:25,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2024-10-24 09:00:25,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:25,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2024-10-24 09:00:25,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:25,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2024-10-24 09:00:25,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:25,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2024-10-24 09:00:25,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:25,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2024-10-24 09:00:25,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:25,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2024-10-24 09:00:25,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:25,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2024-10-24 09:00:25,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:25,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2024-10-24 09:00:25,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:25,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2024-10-24 09:00:25,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:25,280 INFO L134 CoverageAnalysis]: Checked inductivity of 3058 backedges. 63 proven. 10 refuted. 0 times theorem prover too weak. 2985 trivial. 0 not checked. [2024-10-24 09:00:25,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 09:00:25,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506144530] [2024-10-24 09:00:25,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [506144530] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 09:00:25,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1669382703] [2024-10-24 09:00:25,281 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-24 09:00:25,282 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 09:00:25,282 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 09:00:25,285 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 09:00:25,286 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-24 09:00:25,376 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-24 09:00:25,376 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 09:00:25,382 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-10-24 09:00:25,403 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 09:00:25,961 INFO L134 CoverageAnalysis]: Checked inductivity of 3058 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 3040 trivial. 0 not checked. [2024-10-24 09:00:25,961 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 09:00:25,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1669382703] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 09:00:25,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 09:00:25,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [17] total 27 [2024-10-24 09:00:25,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987405804] [2024-10-24 09:00:25,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 09:00:25,964 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-24 09:00:25,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 09:00:25,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-24 09:00:25,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=617, Unknown=0, NotChecked=0, Total=702 [2024-10-24 09:00:25,965 INFO L87 Difference]: Start difference. First operand 379 states and 505 transitions. Second operand has 12 states, 12 states have (on average 3.4166666666666665) internal successors, (41), 12 states have internal predecessors, (41), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-10-24 09:00:26,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 09:00:26,893 INFO L93 Difference]: Finished difference Result 447 states and 573 transitions. [2024-10-24 09:00:26,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-10-24 09:00:26,893 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.4166666666666665) internal successors, (41), 12 states have internal predecessors, (41), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 259 [2024-10-24 09:00:26,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 09:00:26,897 INFO L225 Difference]: With dead ends: 447 [2024-10-24 09:00:26,897 INFO L226 Difference]: Without dead ends: 445 [2024-10-24 09:00:26,898 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 379 GetRequests, 337 SyntacticMatches, 2 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 321 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=220, Invalid=1502, Unknown=0, NotChecked=0, Total=1722 [2024-10-24 09:00:26,898 INFO L432 NwaCegarLoop]: 87 mSDtfsCounter, 167 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 629 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 383 SdHoareTripleChecker+Invalid, 659 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 629 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 09:00:26,898 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 383 Invalid, 659 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 629 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 09:00:26,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states. [2024-10-24 09:00:26,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 376. [2024-10-24 09:00:26,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 376 states, 258 states have (on average 1.127906976744186) internal successors, (291), 265 states have internal predecessors, (291), 105 states have call successors, (105), 12 states have call predecessors, (105), 12 states have return successors, (105), 98 states have call predecessors, (105), 105 states have call successors, (105) [2024-10-24 09:00:26,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 501 transitions. [2024-10-24 09:00:26,959 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 501 transitions. Word has length 259 [2024-10-24 09:00:26,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 09:00:26,959 INFO L471 AbstractCegarLoop]: Abstraction has 376 states and 501 transitions. [2024-10-24 09:00:26,959 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.4166666666666665) internal successors, (41), 12 states have internal predecessors, (41), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-10-24 09:00:26,959 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 501 transitions. [2024-10-24 09:00:26,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2024-10-24 09:00:26,963 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 09:00:26,963 INFO L215 NwaCegarLoop]: trace histogram [39, 39, 39, 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, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 09:00:26,981 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-24 09:00:27,167 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-10-24 09:00:27,168 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 09:00:27,168 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 09:00:27,168 INFO L85 PathProgramCache]: Analyzing trace with hash -595774367, now seen corresponding path program 1 times [2024-10-24 09:00:27,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 09:00:27,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987403857] [2024-10-24 09:00:27,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 09:00:27,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 09:00:27,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:27,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 09:00:27,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:27,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 09:00:27,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:27,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 09:00:27,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:27,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 09:00:27,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:27,253 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-24 09:00:27,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:27,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 09:00:27,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:27,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 09:00:27,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:27,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 09:00:27,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:27,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-24 09:00:27,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:27,263 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 09:00:27,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:27,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 09:00:27,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:27,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 09:00:27,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:27,267 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-24 09:00:27,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:27,268 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 09:00:27,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:27,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-24 09:00:27,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:27,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-24 09:00:27,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:27,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-24 09:00:27,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:27,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 09:00:27,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:27,273 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-24 09:00:27,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:27,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-24 09:00:27,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:27,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-10-24 09:00:27,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:27,278 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-10-24 09:00:27,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:27,280 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-10-24 09:00:27,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:27,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-10-24 09:00:27,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:27,285 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-10-24 09:00:27,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:27,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-10-24 09:00:27,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:27,288 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2024-10-24 09:00:27,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:27,289 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-10-24 09:00:27,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:27,289 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-24 09:00:27,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:27,291 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2024-10-24 09:00:27,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:27,293 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2024-10-24 09:00:27,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:27,294 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2024-10-24 09:00:27,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:27,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2024-10-24 09:00:27,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:27,296 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2024-10-24 09:00:27,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:27,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2024-10-24 09:00:27,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:27,299 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2024-10-24 09:00:27,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:27,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2024-10-24 09:00:27,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:27,301 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2024-10-24 09:00:27,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:27,302 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2024-10-24 09:00:27,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:27,304 INFO L134 CoverageAnalysis]: Checked inductivity of 3058 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 3046 trivial. 0 not checked. [2024-10-24 09:00:27,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 09:00:27,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987403857] [2024-10-24 09:00:27,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1987403857] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 09:00:27,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 09:00:27,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 09:00:27,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815094956] [2024-10-24 09:00:27,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 09:00:27,305 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 09:00:27,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 09:00:27,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 09:00:27,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 09:00:27,306 INFO L87 Difference]: Start difference. First operand 376 states and 501 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-10-24 09:00:27,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 09:00:27,424 INFO L93 Difference]: Finished difference Result 745 states and 997 transitions. [2024-10-24 09:00:27,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 09:00:27,425 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 264 [2024-10-24 09:00:27,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 09:00:27,429 INFO L225 Difference]: With dead ends: 745 [2024-10-24 09:00:27,429 INFO L226 Difference]: Without dead ends: 477 [2024-10-24 09:00:27,430 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 09:00:27,431 INFO L432 NwaCegarLoop]: 123 mSDtfsCounter, 53 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 09:00:27,431 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 180 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 09:00:27,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 477 states. [2024-10-24 09:00:27,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 477 to 477. [2024-10-24 09:00:27,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 477 states, 319 states have (on average 1.115987460815047) internal successors, (356), 329 states have internal predecessors, (356), 141 states have call successors, (141), 16 states have call predecessors, (141), 16 states have return successors, (141), 131 states have call predecessors, (141), 141 states have call successors, (141) [2024-10-24 09:00:27,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 477 states and 638 transitions. [2024-10-24 09:00:27,505 INFO L78 Accepts]: Start accepts. Automaton has 477 states and 638 transitions. Word has length 264 [2024-10-24 09:00:27,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 09:00:27,505 INFO L471 AbstractCegarLoop]: Abstraction has 477 states and 638 transitions. [2024-10-24 09:00:27,506 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-10-24 09:00:27,506 INFO L276 IsEmpty]: Start isEmpty. Operand 477 states and 638 transitions. [2024-10-24 09:00:27,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2024-10-24 09:00:27,509 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 09:00:27,509 INFO L215 NwaCegarLoop]: trace histogram [39, 39, 39, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 09:00:27,509 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-24 09:00:27,510 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 09:00:27,510 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 09:00:27,510 INFO L85 PathProgramCache]: Analyzing trace with hash -383360142, now seen corresponding path program 2 times [2024-10-24 09:00:27,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 09:00:27,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383740435] [2024-10-24 09:00:27,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 09:00:27,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 09:00:27,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:29,268 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 09:00:29,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:29,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 09:00:29,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:29,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 09:00:29,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:29,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 09:00:29,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:29,273 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-24 09:00:29,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:29,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 09:00:29,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:29,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 09:00:29,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:29,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 09:00:29,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:29,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-24 09:00:29,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:29,278 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 09:00:29,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:29,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 09:00:29,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:29,280 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 09:00:29,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:29,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-24 09:00:29,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:29,282 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 09:00:29,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:29,283 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-24 09:00:29,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:29,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-24 09:00:29,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:29,285 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-24 09:00:29,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:29,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 09:00:29,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:29,287 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-24 09:00:29,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:29,288 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-24 09:00:29,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:29,289 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-10-24 09:00:29,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:29,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-10-24 09:00:29,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:29,291 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-10-24 09:00:29,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:29,293 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-10-24 09:00:29,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:29,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-10-24 09:00:29,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:29,301 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-10-24 09:00:29,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:29,306 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2024-10-24 09:00:29,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:29,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-10-24 09:00:29,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:29,313 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-24 09:00:29,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:29,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2024-10-24 09:00:29,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:29,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2024-10-24 09:00:29,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:29,325 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2024-10-24 09:00:29,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:29,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2024-10-24 09:00:29,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:29,333 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2024-10-24 09:00:29,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:29,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2024-10-24 09:00:29,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:29,341 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2024-10-24 09:00:29,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:29,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2024-10-24 09:00:29,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:29,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2024-10-24 09:00:29,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:29,352 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2024-10-24 09:00:29,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:00:29,356 INFO L134 CoverageAnalysis]: Checked inductivity of 3058 backedges. 73 proven. 7 refuted. 0 times theorem prover too weak. 2978 trivial. 0 not checked. [2024-10-24 09:00:29,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 09:00:29,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383740435] [2024-10-24 09:00:29,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [383740435] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 09:00:29,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1231862195] [2024-10-24 09:00:29,357 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-24 09:00:29,357 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 09:00:29,357 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 09:00:29,359 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 09:00:29,361 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-24 09:00:29,433 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-24 09:00:29,433 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 09:00:29,434 INFO L255 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-10-24 09:00:29,440 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 09:00:30,273 INFO L134 CoverageAnalysis]: Checked inductivity of 3058 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 3040 trivial. 0 not checked. [2024-10-24 09:00:30,273 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 09:00:30,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1231862195] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 09:00:30,273 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 09:00:30,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [13] total 25 [2024-10-24 09:00:30,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352662957] [2024-10-24 09:00:30,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 09:00:30,274 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-24 09:00:30,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 09:00:30,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-24 09:00:30,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=515, Unknown=0, NotChecked=0, Total=600 [2024-10-24 09:00:30,276 INFO L87 Difference]: Start difference. First operand 477 states and 638 transitions. Second operand has 14 states, 14 states have (on average 3.642857142857143) internal successors, (51), 14 states have internal predecessors, (51), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-10-24 09:00:31,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 09:00:31,022 INFO L93 Difference]: Finished difference Result 568 states and 715 transitions. [2024-10-24 09:00:31,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 09:00:31,022 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.642857142857143) internal successors, (51), 14 states have internal predecessors, (51), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 269 [2024-10-24 09:00:31,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 09:00:31,024 INFO L225 Difference]: With dead ends: 568 [2024-10-24 09:00:31,024 INFO L226 Difference]: Without dead ends: 0 [2024-10-24 09:00:31,026 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 372 GetRequests, 341 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 183 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=167, Invalid=889, Unknown=0, NotChecked=0, Total=1056 [2024-10-24 09:00:31,026 INFO L432 NwaCegarLoop]: 88 mSDtfsCounter, 98 mSDsluCounter, 471 mSDsCounter, 0 mSdLazyCounter, 627 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 559 SdHoareTripleChecker+Invalid, 634 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 627 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 09:00:31,027 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 559 Invalid, 634 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 627 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 09:00:31,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-10-24 09:00:31,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-10-24 09:00:31,028 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) [2024-10-24 09:00:31,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-10-24 09:00:31,028 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 269 [2024-10-24 09:00:31,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 09:00:31,028 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-24 09:00:31,029 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.642857142857143) internal successors, (51), 14 states have internal predecessors, (51), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-10-24 09:00:31,029 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-10-24 09:00:31,029 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-10-24 09:00:31,032 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-24 09:00:31,050 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-10-24 09:00:31,233 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 09:00:31,236 INFO L407 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 09:00:31,238 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-10-24 09:01:05,376 WARN L286 SmtUtils]: Spent 34.01s on a formula simplification. DAG size of input: 293 DAG size of output: 376 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-10-24 09:01:12,248 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-24 09:01:12,275 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 09:01:12 BoogieIcfgContainer [2024-10-24 09:01:12,275 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-24 09:01:12,276 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-24 09:01:12,276 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-24 09:01:12,276 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-24 09:01:12,276 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:00:01" (3/4) ... [2024-10-24 09:01:12,279 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-24 09:01:12,282 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-10-24 09:01:12,289 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2024-10-24 09:01:12,289 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-10-24 09:01:12,289 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-10-24 09:01:12,290 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-24 09:01:12,399 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-24 09:01:12,399 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-24 09:01:12,399 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-24 09:01:12,400 INFO L158 Benchmark]: Toolchain (without parser) took 71533.34ms. Allocated memory was 161.5MB in the beginning and 914.4MB in the end (delta: 752.9MB). Free memory was 106.8MB in the beginning and 671.8MB in the end (delta: -565.0MB). Peak memory consumption was 186.3MB. Max. memory is 16.1GB. [2024-10-24 09:01:12,400 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 96.5MB. Free memory is still 50.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 09:01:12,401 INFO L158 Benchmark]: CACSL2BoogieTranslator took 341.44ms. Allocated memory is still 161.5MB. Free memory was 106.8MB in the beginning and 128.4MB in the end (delta: -21.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-10-24 09:01:12,401 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.31ms. Allocated memory is still 161.5MB. Free memory was 128.4MB in the beginning and 125.4MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-24 09:01:12,401 INFO L158 Benchmark]: Boogie Preprocessor took 51.81ms. Allocated memory is still 161.5MB. Free memory was 125.4MB in the beginning and 122.1MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-24 09:01:12,401 INFO L158 Benchmark]: RCFGBuilder took 538.27ms. Allocated memory is still 161.5MB. Free memory was 122.1MB in the beginning and 100.2MB in the end (delta: 21.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-10-24 09:01:12,404 INFO L158 Benchmark]: TraceAbstraction took 70425.23ms. Allocated memory was 161.5MB in the beginning and 914.4MB in the end (delta: 752.9MB). Free memory was 100.2MB in the beginning and 678.1MB in the end (delta: -577.8MB). Peak memory consumption was 525.0MB. Max. memory is 16.1GB. [2024-10-24 09:01:12,404 INFO L158 Benchmark]: Witness Printer took 123.29ms. Allocated memory is still 914.4MB. Free memory was 678.1MB in the beginning and 671.8MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-10-24 09:01:12,406 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 96.5MB. Free memory is still 50.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 341.44ms. Allocated memory is still 161.5MB. Free memory was 106.8MB in the beginning and 128.4MB in the end (delta: -21.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.31ms. Allocated memory is still 161.5MB. Free memory was 128.4MB in the beginning and 125.4MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 51.81ms. Allocated memory is still 161.5MB. Free memory was 125.4MB in the beginning and 122.1MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 538.27ms. Allocated memory is still 161.5MB. Free memory was 122.1MB in the beginning and 100.2MB in the end (delta: 21.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 70425.23ms. Allocated memory was 161.5MB in the beginning and 914.4MB in the end (delta: 752.9MB). Free memory was 100.2MB in the beginning and 678.1MB in the end (delta: -577.8MB). Peak memory consumption was 525.0MB. Max. memory is 16.1GB. * Witness Printer took 123.29ms. Allocated memory is still 914.4MB. Free memory was 678.1MB in the beginning and 671.8MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. 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: 19]: 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 2 procedures, 57 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 29.3s, OverallIterations: 19, TraceHistogramMax: 39, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 8.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1700 SdHoareTripleChecker+Valid, 5.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1700 mSDsluCounter, 5666 SdHoareTripleChecker+Invalid, 4.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3937 mSDsCounter, 229 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5095 IncrementalHoareTripleChecker+Invalid, 5324 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 229 mSolverCounterUnsat, 1729 mSDtfsCounter, 5095 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1608 GetRequests, 1402 SyntacticMatches, 3 SemanticMatches, 203 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 806 ImplicationChecksByTransitivity, 5.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=477occurred in iteration=18, InterpolantAutomatonStates: 158, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 19 MinimizatonAttempts, 517 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 18.5s InterpolantComputationTime, 3285 NumberOfCodeBlocks, 2819 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 3264 ConstructedInterpolants, 0 QuantifiedInterpolants, 13747 SizeOfPredicates, 22 NumberOfNonLiveVariables, 221 ConjunctsInSsa, 49 ConjunctsInUnsatCore, 21 InterpolantComputations, 19 PerfectInterpolantSequences, 26379/26396 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 97]: Loop Invariant Derived loop invariant: (((((((((var_1_8 != ((var_1_10 >= 0) ? (var_1_10 % 256) : ((var_1_10 % 256) + 256))) || ((((3 + var_1_10) < var_1_9) || (var_1_8 == ((252 + var_1_9) % 256))) && (((var_1_10 >= 0) ? (var_1_10 % 256) : ((var_1_10 % 256) + 256)) <= 127))) && ((var_1_8 == ((var_1_10 >= 0) ? (var_1_10 % 256) : ((var_1_10 % 256) + 256))) || ((((((3 + var_1_10) < var_1_9) || ((256 + var_1_8) == ((252 + var_1_9) % 256))) && (128 <= ((var_1_10 >= 0) ? (var_1_10 % 256) : ((var_1_10 % 256) + 256)))) || ((256 + var_1_8) != ((var_1_10 >= 0) ? (var_1_10 % 256) : ((var_1_10 % 256) + 256)))) && (((((var_1_9 <= (3 + var_1_10)) && ((256 + var_1_8) == ((252 + var_1_9) % 256))) || (((252 + var_1_9) % 256) < 128)) && ((127 < ((252 + var_1_9) % 256)) || ((var_1_8 == ((252 + var_1_9) % 256)) && (var_1_9 <= (3 + var_1_10))))) || ((256 + var_1_8) == ((var_1_10 >= 0) ? (var_1_10 % 256) : ((var_1_10 % 256) + 256))))))) || (last_1_var_1_14 < (last_1_var_1_15 + 1))) && (var_1_13 == var_1_10)) && (var_1_8 == var_1_14)) && (var_1_15 == var_1_3)) && (((var_1_1 == 1) && (var_1_5 != 0)) || (var_1_1 == 0))) || ((((((((((9 + last_1_var_1_14) <= last_1_var_1_15) && (0 <= 0)) && (((var_1_14 / var_1_3) + 1) <= var_1_14)) && ((9 + var_1_14) <= var_1_15)) && ((var_1_7 == 0) || (var_1_5 == 0))) && (16 <= var_1_14)) && (var_1_15 <= 25)) && (var_1_1 == 0)) && ((var_1_8 + 1) == 0))) - ProcedureContractResult [Line: 20]: Procedure Contract for assume_abort_if_not Derived contract for procedure assume_abort_if_not. Requires: ((((var_1_1 == 1) || (var_1_1 == 0)) && (var_1_8 == var_1_14)) || (((((((9 + last_1_var_1_14) <= last_1_var_1_15) && (0 <= 0)) && ((9 + var_1_14) <= var_1_15)) && (16 <= var_1_14)) && (var_1_15 <= 25)) && ((var_1_8 + 1) == 0))) Ensures: (((((var_1_1 == 1) || (var_1_1 == 0)) && (var_1_8 == var_1_14)) || (((((((9 + last_1_var_1_14) <= last_1_var_1_15) && (0 <= 0)) && ((9 + var_1_14) <= var_1_15)) && (16 <= var_1_14)) && (var_1_15 <= 25)) && ((var_1_8 + 1) == 0))) && (((((((((((((((isInitial == \old(isInitial)) && (var_1_1 == \old(var_1_1))) && (var_1_3 == \old(var_1_3))) && (var_1_5 == \old(var_1_5))) && (var_1_6 == \old(var_1_6))) && (var_1_7 == \old(var_1_7))) && (var_1_8 == \old(var_1_8))) && (var_1_9 == \old(var_1_9))) && (var_1_10 == \old(var_1_10))) && (var_1_11 == \old(var_1_11))) && (var_1_13 == \old(var_1_13))) && (var_1_14 == \old(var_1_14))) && (var_1_15 == \old(var_1_15))) && (last_1_var_1_14 == \old(last_1_var_1_14))) && (last_1_var_1_15 == \old(last_1_var_1_15)))) RESULT: Ultimate proved your program to be correct! [2024-10-24 09:01:12,532 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/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