./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_fillercode_fillercodestructure_filler-ps-co_file-86.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 61a67961 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-co_file-86.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 59727828023891546cc5a25cf7f297a1b2c37fd03b88eda6114da55f7e3ce778 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 10:36:34,438 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 10:36:34,499 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-14 10:36:34,505 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 10:36:34,508 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 10:36:34,540 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 10:36:34,542 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 10:36:34,542 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 10:36:34,542 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 10:36:34,543 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 10:36:34,543 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 10:36:34,543 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 10:36:34,544 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 10:36:34,544 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 10:36:34,544 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 10:36:34,545 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 10:36:34,547 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 10:36:34,549 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 10:36:34,550 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 10:36:34,550 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 10:36:34,550 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 10:36:34,551 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 10:36:34,551 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 10:36:34,551 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 10:36:34,551 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 10:36:34,552 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 10:36:34,552 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 10:36:34,554 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 10:36:34,554 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 10:36:34,554 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 10:36:34,554 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 10:36:34,554 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 10:36:34,554 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 10:36:34,555 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 10:36:34,555 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 10:36:34,555 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 10:36:34,555 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 10:36:34,555 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 10:36:34,556 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 10:36:34,556 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 10:36:34,556 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 10:36:34,557 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 10:36:34,558 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 59727828023891546cc5a25cf7f297a1b2c37fd03b88eda6114da55f7e3ce778 [2024-10-14 10:36:34,792 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 10:36:34,814 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 10:36:34,818 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 10:36:34,819 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 10:36:34,819 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 10:36:34,820 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-co_file-86.i [2024-10-14 10:36:36,284 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 10:36:36,511 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 10:36:36,513 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-co_file-86.i [2024-10-14 10:36:36,526 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/34a3adc28/f2fc50b113074815996f3f7c427b4b77/FLAGb05a090e9 [2024-10-14 10:36:36,541 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/34a3adc28/f2fc50b113074815996f3f7c427b4b77 [2024-10-14 10:36:36,544 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 10:36:36,546 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 10:36:36,549 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 10:36:36,549 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 10:36:36,555 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 10:36:36,556 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 10:36:36" (1/1) ... [2024-10-14 10:36:36,558 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ad64376 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:36:36, skipping insertion in model container [2024-10-14 10:36:36,558 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 10:36:36" (1/1) ... [2024-10-14 10:36:36,592 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 10:36:36,814 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_fillercode_fillercodestructure_filler-ps-co_file-86.i[919,932] [2024-10-14 10:36:36,881 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 10:36:36,906 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 10:36:36,920 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_fillercode_fillercodestructure_filler-ps-co_file-86.i[919,932] [2024-10-14 10:36:36,967 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 10:36:36,998 INFO L204 MainTranslator]: Completed translation [2024-10-14 10:36:36,999 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:36:36 WrapperNode [2024-10-14 10:36:36,999 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 10:36:37,000 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 10:36:37,001 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 10:36:37,001 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 10:36:37,008 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:36:36" (1/1) ... [2024-10-14 10:36:37,024 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:36:36" (1/1) ... [2024-10-14 10:36:37,080 INFO L138 Inliner]: procedures = 26, calls = 40, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 236 [2024-10-14 10:36:37,081 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 10:36:37,082 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 10:36:37,082 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 10:36:37,082 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 10:36:37,093 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:36:36" (1/1) ... [2024-10-14 10:36:37,093 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:36:36" (1/1) ... [2024-10-14 10:36:37,102 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:36:36" (1/1) ... [2024-10-14 10:36:37,138 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-14 10:36:37,139 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:36:36" (1/1) ... [2024-10-14 10:36:37,139 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:36:36" (1/1) ... [2024-10-14 10:36:37,157 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:36:36" (1/1) ... [2024-10-14 10:36:37,161 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:36:36" (1/1) ... [2024-10-14 10:36:37,164 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:36:36" (1/1) ... [2024-10-14 10:36:37,169 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:36:36" (1/1) ... [2024-10-14 10:36:37,180 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 10:36:37,181 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 10:36:37,181 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 10:36:37,181 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 10:36:37,182 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:36:36" (1/1) ... [2024-10-14 10:36:37,192 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 10:36:37,202 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 10:36:37,215 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-14 10:36:37,216 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-14 10:36:37,255 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 10:36:37,255 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-14 10:36:37,256 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-14 10:36:37,256 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 10:36:37,256 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 10:36:37,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 10:36:37,334 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 10:36:37,336 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 10:36:37,809 INFO L? ?]: Removed 23 outVars from TransFormulas that were not future-live. [2024-10-14 10:36:37,809 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 10:36:37,848 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 10:36:37,849 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-14 10:36:37,849 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 10:36:37 BoogieIcfgContainer [2024-10-14 10:36:37,849 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 10:36:37,851 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 10:36:37,851 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 10:36:37,855 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 10:36:37,855 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 10:36:36" (1/3) ... [2024-10-14 10:36:37,856 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25af8a7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 10:36:37, skipping insertion in model container [2024-10-14 10:36:37,856 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:36:36" (2/3) ... [2024-10-14 10:36:37,857 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25af8a7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 10:36:37, skipping insertion in model container [2024-10-14 10:36:37,857 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 10:36:37" (3/3) ... [2024-10-14 10:36:37,858 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-ps-co_file-86.i [2024-10-14 10:36:37,875 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 10:36:37,875 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-14 10:36:37,935 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 10:36:37,940 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;@66413cd2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 10:36:37,940 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-14 10:36:37,944 INFO L276 IsEmpty]: Start isEmpty. Operand has 92 states, 62 states have (on average 1.532258064516129) internal successors, (95), 63 states have internal predecessors, (95), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-10-14 10:36:37,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-10-14 10:36:37,956 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 10:36:37,957 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 10:36:37,957 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 10:36:37,961 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 10:36:37,961 INFO L85 PathProgramCache]: Analyzing trace with hash -1027232776, now seen corresponding path program 1 times [2024-10-14 10:36:37,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 10:36:37,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687475629] [2024-10-14 10:36:37,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 10:36:37,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 10:36:38,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:38,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 10:36:38,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:38,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 10:36:38,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:38,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 10:36:38,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:38,352 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 10:36:38,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:38,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 10:36:38,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:38,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 10:36:38,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:38,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 10:36:38,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:38,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 10:36:38,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:38,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 10:36:38,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:38,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 10:36:38,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:38,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 10:36:38,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:38,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 10:36:38,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:38,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-14 10:36:38,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:38,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 10:36:38,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:38,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-14 10:36:38,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:38,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 10:36:38,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:38,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-14 10:36:38,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:38,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 10:36:38,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:38,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-14 10:36:38,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:38,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-14 10:36:38,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:38,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-14 10:36:38,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:38,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-14 10:36:38,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:38,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-14 10:36:38,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:38,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-14 10:36:38,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:38,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-14 10:36:38,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:38,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-14 10:36:38,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:38,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-10-14 10:36:38,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:38,523 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-10-14 10:36:38,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 10:36:38,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687475629] [2024-10-14 10:36:38,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [687475629] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 10:36:38,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 10:36:38,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 10:36:38,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48802779] [2024-10-14 10:36:38,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 10:36:38,534 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-14 10:36:38,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 10:36:38,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-14 10:36:38,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 10:36:38,565 INFO L87 Difference]: Start difference. First operand has 92 states, 62 states have (on average 1.532258064516129) internal successors, (95), 63 states have internal predecessors, (95), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) Second operand has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 2 states have call successors, (27) [2024-10-14 10:36:38,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 10:36:38,613 INFO L93 Difference]: Finished difference Result 181 states and 323 transitions. [2024-10-14 10:36:38,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-14 10:36:38,617 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 2 states have call successors, (27) Word has length 171 [2024-10-14 10:36:38,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 10:36:38,628 INFO L225 Difference]: With dead ends: 181 [2024-10-14 10:36:38,628 INFO L226 Difference]: Without dead ends: 90 [2024-10-14 10:36:38,632 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 10:36:38,635 INFO L432 NwaCegarLoop]: 140 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, 140 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 [2024-10-14 10:36:38,636 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 140 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 10:36:38,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2024-10-14 10:36:38,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2024-10-14 10:36:38,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 61 states have (on average 1.459016393442623) internal successors, (89), 61 states have internal predecessors, (89), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-10-14 10:36:38,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 143 transitions. [2024-10-14 10:36:38,677 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 143 transitions. Word has length 171 [2024-10-14 10:36:38,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 10:36:38,677 INFO L471 AbstractCegarLoop]: Abstraction has 90 states and 143 transitions. [2024-10-14 10:36:38,680 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 2 states have call successors, (27) [2024-10-14 10:36:38,680 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 143 transitions. [2024-10-14 10:36:38,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-10-14 10:36:38,683 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 10:36:38,684 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 10:36:38,684 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 10:36:38,684 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 10:36:38,685 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 10:36:38,685 INFO L85 PathProgramCache]: Analyzing trace with hash -392632714, now seen corresponding path program 1 times [2024-10-14 10:36:38,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 10:36:38,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011354165] [2024-10-14 10:36:38,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 10:36:38,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 10:36:38,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:38,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 10:36:38,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:38,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 10:36:38,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:38,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 10:36:38,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:38,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 10:36:38,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:38,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 10:36:38,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:38,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 10:36:38,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:38,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 10:36:38,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:38,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 10:36:38,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:38,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 10:36:38,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:38,991 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 10:36:38,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:38,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 10:36:38,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:38,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 10:36:38,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:39,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-14 10:36:39,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:39,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 10:36:39,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:39,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-14 10:36:39,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:39,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 10:36:39,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:39,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-14 10:36:39,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:39,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 10:36:39,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:39,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-14 10:36:39,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:39,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-14 10:36:39,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:39,032 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-14 10:36:39,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:39,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-14 10:36:39,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:39,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-14 10:36:39,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:39,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-14 10:36:39,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:39,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-14 10:36:39,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:39,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-14 10:36:39,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:39,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-10-14 10:36:39,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:39,055 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-10-14 10:36:39,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 10:36:39,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011354165] [2024-10-14 10:36:39,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2011354165] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 10:36:39,056 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 10:36:39,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 10:36:39,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233419986] [2024-10-14 10:36:39,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 10:36:39,058 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 10:36:39,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 10:36:39,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 10:36:39,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 10:36:39,059 INFO L87 Difference]: Start difference. First operand 90 states and 143 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-14 10:36:39,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 10:36:39,142 INFO L93 Difference]: Finished difference Result 180 states and 287 transitions. [2024-10-14 10:36:39,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 10:36:39,143 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 171 [2024-10-14 10:36:39,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 10:36:39,147 INFO L225 Difference]: With dead ends: 180 [2024-10-14 10:36:39,148 INFO L226 Difference]: Without dead ends: 91 [2024-10-14 10:36:39,150 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 10:36:39,152 INFO L432 NwaCegarLoop]: 139 mSDtfsCounter, 0 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 273 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 10:36:39,153 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 273 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 10:36:39,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2024-10-14 10:36:39,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2024-10-14 10:36:39,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 62 states have (on average 1.4516129032258065) internal successors, (90), 62 states have internal predecessors, (90), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-10-14 10:36:39,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 144 transitions. [2024-10-14 10:36:39,174 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 144 transitions. Word has length 171 [2024-10-14 10:36:39,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 10:36:39,177 INFO L471 AbstractCegarLoop]: Abstraction has 91 states and 144 transitions. [2024-10-14 10:36:39,177 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-14 10:36:39,178 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 144 transitions. [2024-10-14 10:36:39,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-10-14 10:36:39,183 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 10:36:39,183 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 10:36:39,184 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 10:36:39,184 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 10:36:39,184 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 10:36:39,184 INFO L85 PathProgramCache]: Analyzing trace with hash -1980980616, now seen corresponding path program 1 times [2024-10-14 10:36:39,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 10:36:39,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710194685] [2024-10-14 10:36:39,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 10:36:39,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 10:36:39,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:39,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 10:36:39,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:39,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 10:36:39,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:39,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 10:36:39,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:39,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 10:36:39,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:39,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 10:36:39,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:39,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 10:36:39,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:39,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 10:36:39,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:39,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 10:36:39,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:39,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 10:36:39,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:39,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 10:36:39,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:39,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 10:36:39,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:39,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 10:36:39,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:39,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-14 10:36:39,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:39,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 10:36:39,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:39,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-14 10:36:39,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:39,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 10:36:39,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:39,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-14 10:36:39,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:39,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 10:36:39,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:39,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-14 10:36:39,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:39,582 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-14 10:36:39,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:39,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-14 10:36:39,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:39,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-14 10:36:39,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:39,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-14 10:36:39,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:39,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-14 10:36:39,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:39,620 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-14 10:36:39,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:39,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-14 10:36:39,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:39,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-10-14 10:36:39,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:39,641 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-10-14 10:36:39,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 10:36:39,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710194685] [2024-10-14 10:36:39,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710194685] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 10:36:39,644 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 10:36:39,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 10:36:39,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907923139] [2024-10-14 10:36:39,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 10:36:39,645 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 10:36:39,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 10:36:39,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 10:36:39,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 10:36:39,649 INFO L87 Difference]: Start difference. First operand 91 states and 144 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-14 10:36:39,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 10:36:39,955 INFO L93 Difference]: Finished difference Result 272 states and 431 transitions. [2024-10-14 10:36:39,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 10:36:39,956 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 171 [2024-10-14 10:36:39,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 10:36:39,961 INFO L225 Difference]: With dead ends: 272 [2024-10-14 10:36:39,961 INFO L226 Difference]: Without dead ends: 182 [2024-10-14 10:36:39,962 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-14 10:36:39,965 INFO L432 NwaCegarLoop]: 128 mSDtfsCounter, 143 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 462 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 10:36:39,966 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 462 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 10:36:39,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2024-10-14 10:36:39,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 163. [2024-10-14 10:36:40,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 106 states have (on average 1.4150943396226414) internal successors, (150), 106 states have internal predecessors, (150), 54 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-10-14 10:36:40,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 258 transitions. [2024-10-14 10:36:40,006 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 258 transitions. Word has length 171 [2024-10-14 10:36:40,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 10:36:40,008 INFO L471 AbstractCegarLoop]: Abstraction has 163 states and 258 transitions. [2024-10-14 10:36:40,008 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-14 10:36:40,008 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 258 transitions. [2024-10-14 10:36:40,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-10-14 10:36:40,011 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 10:36:40,011 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 10:36:40,011 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 10:36:40,012 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 10:36:40,012 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 10:36:40,012 INFO L85 PathProgramCache]: Analyzing trace with hash 1727180666, now seen corresponding path program 1 times [2024-10-14 10:36:40,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 10:36:40,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648686155] [2024-10-14 10:36:40,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 10:36:40,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 10:36:40,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:40,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 10:36:40,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:40,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 10:36:40,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:40,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 10:36:40,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:40,257 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 10:36:40,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:40,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 10:36:40,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:40,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 10:36:40,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:40,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 10:36:40,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:40,273 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 10:36:40,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:40,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 10:36:40,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:40,278 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 10:36:40,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:40,282 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 10:36:40,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:40,285 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 10:36:40,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:40,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-14 10:36:40,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:40,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 10:36:40,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:40,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-14 10:36:40,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:40,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 10:36:40,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:40,298 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-14 10:36:40,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:40,301 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 10:36:40,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:40,306 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-14 10:36:40,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:40,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-14 10:36:40,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:40,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-14 10:36:40,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:40,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-14 10:36:40,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:40,325 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-14 10:36:40,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:40,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-14 10:36:40,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:40,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-14 10:36:40,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:40,333 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-14 10:36:40,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:40,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-10-14 10:36:40,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:40,343 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-10-14 10:36:40,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 10:36:40,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648686155] [2024-10-14 10:36:40,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [648686155] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 10:36:40,343 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 10:36:40,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 10:36:40,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933004163] [2024-10-14 10:36:40,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 10:36:40,345 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 10:36:40,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 10:36:40,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 10:36:40,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 10:36:40,346 INFO L87 Difference]: Start difference. First operand 163 states and 258 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-14 10:36:40,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 10:36:40,381 INFO L93 Difference]: Finished difference Result 369 states and 585 transitions. [2024-10-14 10:36:40,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 10:36:40,382 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 171 [2024-10-14 10:36:40,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 10:36:40,385 INFO L225 Difference]: With dead ends: 369 [2024-10-14 10:36:40,385 INFO L226 Difference]: Without dead ends: 253 [2024-10-14 10:36:40,389 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 10:36:40,390 INFO L432 NwaCegarLoop]: 160 mSDtfsCounter, 99 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 297 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 10:36:40,394 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 297 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 10:36:40,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2024-10-14 10:36:40,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 251. [2024-10-14 10:36:40,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251 states, 166 states have (on average 1.4216867469879517) internal successors, (236), 166 states have internal predecessors, (236), 81 states have call successors, (81), 3 states have call predecessors, (81), 3 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-10-14 10:36:40,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 398 transitions. [2024-10-14 10:36:40,452 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 398 transitions. Word has length 171 [2024-10-14 10:36:40,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 10:36:40,453 INFO L471 AbstractCegarLoop]: Abstraction has 251 states and 398 transitions. [2024-10-14 10:36:40,453 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-14 10:36:40,454 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 398 transitions. [2024-10-14 10:36:40,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-10-14 10:36:40,458 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 10:36:40,458 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 10:36:40,458 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 10:36:40,458 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 10:36:40,459 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 10:36:40,459 INFO L85 PathProgramCache]: Analyzing trace with hash -2145084804, now seen corresponding path program 1 times [2024-10-14 10:36:40,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 10:36:40,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019786329] [2024-10-14 10:36:40,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 10:36:40,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 10:36:40,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:46,737 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 10:36:46,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:46,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 10:36:46,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:46,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 10:36:46,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:46,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 10:36:46,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:46,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 10:36:46,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:46,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 10:36:46,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:46,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 10:36:46,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:46,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 10:36:46,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:46,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 10:36:46,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:46,759 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 10:36:46,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:46,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 10:36:46,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:46,764 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 10:36:46,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:46,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-14 10:36:46,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:46,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 10:36:46,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:46,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-14 10:36:46,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:46,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 10:36:46,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:46,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-14 10:36:46,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:46,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 10:36:46,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:46,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-14 10:36:46,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:46,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-14 10:36:46,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:46,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-14 10:36:46,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:46,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-14 10:36:46,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:46,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-14 10:36:46,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:46,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-14 10:36:46,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:46,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-14 10:36:46,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:46,800 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-14 10:36:46,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:46,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-10-14 10:36:46,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:46,806 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-10-14 10:36:46,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 10:36:46,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019786329] [2024-10-14 10:36:46,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019786329] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 10:36:46,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 10:36:46,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-10-14 10:36:46,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616525817] [2024-10-14 10:36:46,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 10:36:46,809 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-14 10:36:46,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 10:36:46,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-14 10:36:46,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2024-10-14 10:36:46,811 INFO L87 Difference]: Start difference. First operand 251 states and 398 transitions. Second operand has 14 states, 14 states have (on average 2.7857142857142856) internal successors, (39), 14 states have internal predecessors, (39), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-14 10:36:49,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 10:36:49,487 INFO L93 Difference]: Finished difference Result 416 states and 647 transitions. [2024-10-14 10:36:49,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-14 10:36:49,489 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.7857142857142856) internal successors, (39), 14 states have internal predecessors, (39), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 171 [2024-10-14 10:36:49,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 10:36:49,492 INFO L225 Difference]: With dead ends: 416 [2024-10-14 10:36:49,493 INFO L226 Difference]: Without dead ends: 326 [2024-10-14 10:36:49,494 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=204, Invalid=552, Unknown=0, NotChecked=0, Total=756 [2024-10-14 10:36:49,495 INFO L432 NwaCegarLoop]: 117 mSDtfsCounter, 299 mSDsluCounter, 677 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 299 SdHoareTripleChecker+Valid, 794 SdHoareTripleChecker+Invalid, 448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-14 10:36:49,495 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [299 Valid, 794 Invalid, 448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 363 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-14 10:36:49,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2024-10-14 10:36:49,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 266. [2024-10-14 10:36:49,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 181 states have (on average 1.419889502762431) internal successors, (257), 181 states have internal predecessors, (257), 81 states have call successors, (81), 3 states have call predecessors, (81), 3 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-10-14 10:36:49,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 419 transitions. [2024-10-14 10:36:49,521 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 419 transitions. Word has length 171 [2024-10-14 10:36:49,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 10:36:49,522 INFO L471 AbstractCegarLoop]: Abstraction has 266 states and 419 transitions. [2024-10-14 10:36:49,522 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.7857142857142856) internal successors, (39), 14 states have internal predecessors, (39), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-14 10:36:49,522 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 419 transitions. [2024-10-14 10:36:49,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-10-14 10:36:49,524 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 10:36:49,524 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 10:36:49,524 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-14 10:36:49,524 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 10:36:49,525 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 10:36:49,525 INFO L85 PathProgramCache]: Analyzing trace with hash 1756855482, now seen corresponding path program 1 times [2024-10-14 10:36:49,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 10:36:49,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887271619] [2024-10-14 10:36:49,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 10:36:49,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 10:36:49,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:49,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 10:36:49,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:49,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 10:36:49,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:49,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 10:36:49,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:49,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 10:36:49,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:49,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 10:36:49,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:49,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 10:36:49,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:49,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 10:36:49,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:49,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 10:36:49,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:49,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 10:36:49,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:49,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 10:36:49,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:49,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 10:36:49,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:49,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 10:36:49,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:49,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-14 10:36:49,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:49,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 10:36:49,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:49,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-14 10:36:49,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:49,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 10:36:49,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:49,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-14 10:36:49,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:49,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 10:36:49,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:49,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-14 10:36:49,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:49,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-14 10:36:49,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:49,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-14 10:36:49,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:49,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-14 10:36:49,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:49,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-14 10:36:49,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:49,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-14 10:36:49,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:49,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-14 10:36:49,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:49,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-14 10:36:49,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:49,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-10-14 10:36:49,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:49,648 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-10-14 10:36:49,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 10:36:49,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887271619] [2024-10-14 10:36:49,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [887271619] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 10:36:49,649 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 10:36:49,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 10:36:49,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646041567] [2024-10-14 10:36:49,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 10:36:49,650 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 10:36:49,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 10:36:49,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 10:36:49,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 10:36:49,651 INFO L87 Difference]: Start difference. First operand 266 states and 419 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-14 10:36:49,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 10:36:49,707 INFO L93 Difference]: Finished difference Result 534 states and 846 transitions. [2024-10-14 10:36:49,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 10:36:49,708 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 171 [2024-10-14 10:36:49,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 10:36:49,713 INFO L225 Difference]: With dead ends: 534 [2024-10-14 10:36:49,713 INFO L226 Difference]: Without dead ends: 356 [2024-10-14 10:36:49,714 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 10:36:49,715 INFO L432 NwaCegarLoop]: 153 mSDtfsCounter, 135 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 10:36:49,715 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 282 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 10:36:49,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2024-10-14 10:36:49,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 354. [2024-10-14 10:36:49,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 354 states, 241 states have (on average 1.4066390041493777) internal successors, (339), 241 states have internal predecessors, (339), 108 states have call successors, (108), 4 states have call predecessors, (108), 4 states have return successors, (108), 108 states have call predecessors, (108), 108 states have call successors, (108) [2024-10-14 10:36:49,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 555 transitions. [2024-10-14 10:36:49,747 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 555 transitions. Word has length 171 [2024-10-14 10:36:49,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 10:36:49,747 INFO L471 AbstractCegarLoop]: Abstraction has 354 states and 555 transitions. [2024-10-14 10:36:49,748 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-14 10:36:49,748 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 555 transitions. [2024-10-14 10:36:49,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-10-14 10:36:49,749 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 10:36:49,750 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 10:36:49,750 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-14 10:36:49,750 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 10:36:49,750 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 10:36:49,751 INFO L85 PathProgramCache]: Analyzing trace with hash -418093760, now seen corresponding path program 1 times [2024-10-14 10:36:49,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 10:36:49,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89991616] [2024-10-14 10:36:49,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 10:36:49,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 10:36:49,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:50,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 10:36:50,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:50,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 10:36:50,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:50,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 10:36:50,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:50,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 10:36:50,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:50,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 10:36:50,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:50,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 10:36:50,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:50,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 10:36:50,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:50,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 10:36:50,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:50,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 10:36:50,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:50,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 10:36:50,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:50,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 10:36:50,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:50,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 10:36:50,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:50,045 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-14 10:36:50,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:50,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 10:36:50,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:50,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-14 10:36:50,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:50,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 10:36:50,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:50,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-14 10:36:50,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:50,054 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 10:36:50,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:50,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-14 10:36:50,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:50,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-14 10:36:50,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:50,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-14 10:36:50,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:50,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-14 10:36:50,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:50,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-14 10:36:50,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:50,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-14 10:36:50,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:50,064 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-14 10:36:50,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:50,066 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-14 10:36:50,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:50,067 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-10-14 10:36:50,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:50,069 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-10-14 10:36:50,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 10:36:50,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89991616] [2024-10-14 10:36:50,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [89991616] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 10:36:50,070 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 10:36:50,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 10:36:50,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507971652] [2024-10-14 10:36:50,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 10:36:50,071 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 10:36:50,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 10:36:50,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 10:36:50,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 10:36:50,072 INFO L87 Difference]: Start difference. First operand 354 states and 555 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-14 10:36:50,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 10:36:50,118 INFO L93 Difference]: Finished difference Result 636 states and 996 transitions. [2024-10-14 10:36:50,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 10:36:50,120 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 172 [2024-10-14 10:36:50,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 10:36:50,125 INFO L225 Difference]: With dead ends: 636 [2024-10-14 10:36:50,125 INFO L226 Difference]: Without dead ends: 367 [2024-10-14 10:36:50,126 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 10:36:50,129 INFO L432 NwaCegarLoop]: 138 mSDtfsCounter, 6 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 264 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 10:36:50,129 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 264 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 10:36:50,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states. [2024-10-14 10:36:50,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 354. [2024-10-14 10:36:50,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 354 states, 241 states have (on average 1.3900414937759336) internal successors, (335), 241 states have internal predecessors, (335), 108 states have call successors, (108), 4 states have call predecessors, (108), 4 states have return successors, (108), 108 states have call predecessors, (108), 108 states have call successors, (108) [2024-10-14 10:36:50,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 551 transitions. [2024-10-14 10:36:50,162 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 551 transitions. Word has length 172 [2024-10-14 10:36:50,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 10:36:50,163 INFO L471 AbstractCegarLoop]: Abstraction has 354 states and 551 transitions. [2024-10-14 10:36:50,164 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-14 10:36:50,164 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 551 transitions. [2024-10-14 10:36:50,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-10-14 10:36:50,165 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 10:36:50,165 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 10:36:50,166 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-14 10:36:50,166 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 10:36:50,166 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 10:36:50,168 INFO L85 PathProgramCache]: Analyzing trace with hash -360835458, now seen corresponding path program 1 times [2024-10-14 10:36:50,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 10:36:50,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25082498] [2024-10-14 10:36:50,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 10:36:50,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 10:36:50,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:55,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 10:36:55,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:55,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 10:36:55,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:55,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 10:36:55,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:55,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 10:36:55,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:55,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 10:36:55,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:55,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 10:36:55,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:55,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 10:36:55,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:55,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 10:36:55,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:55,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 10:36:55,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:55,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 10:36:55,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:55,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 10:36:55,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:55,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 10:36:55,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:55,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-14 10:36:55,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:55,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 10:36:55,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:55,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-14 10:36:55,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:55,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 10:36:55,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:55,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-14 10:36:55,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:55,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 10:36:55,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:55,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-14 10:36:55,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:55,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-14 10:36:55,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:55,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-14 10:36:55,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:55,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-14 10:36:55,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:55,174 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-14 10:36:55,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:55,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-14 10:36:55,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:55,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-14 10:36:55,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:55,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-14 10:36:55,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:55,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-10-14 10:36:55,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:36:55,186 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-10-14 10:36:55,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 10:36:55,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25082498] [2024-10-14 10:36:55,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25082498] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 10:36:55,187 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 10:36:55,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-10-14 10:36:55,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779669878] [2024-10-14 10:36:55,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 10:36:55,187 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-14 10:36:55,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 10:36:55,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-14 10:36:55,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2024-10-14 10:36:55,189 INFO L87 Difference]: Start difference. First operand 354 states and 551 transitions. Second operand has 15 states, 15 states have (on average 2.6666666666666665) internal successors, (40), 15 states have internal predecessors, (40), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-14 10:36:58,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 10:36:58,177 INFO L93 Difference]: Finished difference Result 431 states and 645 transitions. [2024-10-14 10:36:58,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-10-14 10:36:58,178 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.6666666666666665) internal successors, (40), 15 states have internal predecessors, (40), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 172 [2024-10-14 10:36:58,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 10:36:58,182 INFO L225 Difference]: With dead ends: 431 [2024-10-14 10:36:58,182 INFO L226 Difference]: Without dead ends: 429 [2024-10-14 10:36:58,183 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 213 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=296, Invalid=826, Unknown=0, NotChecked=0, Total=1122 [2024-10-14 10:36:58,184 INFO L432 NwaCegarLoop]: 114 mSDtfsCounter, 374 mSDsluCounter, 532 mSDsCounter, 0 mSdLazyCounter, 403 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 374 SdHoareTripleChecker+Valid, 646 SdHoareTripleChecker+Invalid, 514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-14 10:36:58,185 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [374 Valid, 646 Invalid, 514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [111 Valid, 403 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-14 10:36:58,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2024-10-14 10:36:58,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 352. [2024-10-14 10:36:58,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 352 states, 239 states have (on average 1.389121338912134) internal successors, (332), 239 states have internal predecessors, (332), 108 states have call successors, (108), 4 states have call predecessors, (108), 4 states have return successors, (108), 108 states have call predecessors, (108), 108 states have call successors, (108) [2024-10-14 10:36:58,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 352 states and 548 transitions. [2024-10-14 10:36:58,221 INFO L78 Accepts]: Start accepts. Automaton has 352 states and 548 transitions. Word has length 172 [2024-10-14 10:36:58,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 10:36:58,221 INFO L471 AbstractCegarLoop]: Abstraction has 352 states and 548 transitions. [2024-10-14 10:36:58,221 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.6666666666666665) internal successors, (40), 15 states have internal predecessors, (40), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-14 10:36:58,222 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 548 transitions. [2024-10-14 10:36:58,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-10-14 10:36:58,223 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 10:36:58,223 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 10:36:58,224 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-14 10:36:58,224 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 10:36:58,224 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 10:36:58,225 INFO L85 PathProgramCache]: Analyzing trace with hash -2073817958, now seen corresponding path program 1 times [2024-10-14 10:36:58,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 10:36:58,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012876788] [2024-10-14 10:36:58,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 10:36:58,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 10:36:58,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:01,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 10:37:01,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:01,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 10:37:01,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:01,250 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 10:37:01,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:01,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 10:37:01,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:01,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 10:37:01,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:01,257 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 10:37:01,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:01,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 10:37:01,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:01,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 10:37:01,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:01,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 10:37:01,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:01,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 10:37:01,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:01,268 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 10:37:01,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:01,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 10:37:01,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:01,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-14 10:37:01,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:01,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 10:37:01,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:01,278 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-14 10:37:01,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:01,280 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 10:37:01,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:01,283 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-14 10:37:01,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:01,285 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 10:37:01,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:01,287 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-14 10:37:01,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:01,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-14 10:37:01,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:01,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-14 10:37:01,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:01,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-14 10:37:01,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:01,298 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-14 10:37:01,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:01,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-14 10:37:01,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:01,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-14 10:37:01,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:01,306 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-14 10:37:01,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:01,308 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-10-14 10:37:01,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:01,311 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-10-14 10:37:01,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 10:37:01,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012876788] [2024-10-14 10:37:01,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1012876788] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 10:37:01,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 10:37:01,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-10-14 10:37:01,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009700318] [2024-10-14 10:37:01,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 10:37:01,313 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-14 10:37:01,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 10:37:01,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-14 10:37:01,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2024-10-14 10:37:01,315 INFO L87 Difference]: Start difference. First operand 352 states and 548 transitions. Second operand has 14 states, 14 states have (on average 2.857142857142857) internal successors, (40), 14 states have internal predecessors, (40), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-14 10:37:02,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 10:37:02,446 INFO L93 Difference]: Finished difference Result 667 states and 1023 transitions. [2024-10-14 10:37:02,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-14 10:37:02,447 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.857142857142857) internal successors, (40), 14 states have internal predecessors, (40), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 172 [2024-10-14 10:37:02,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 10:37:02,451 INFO L225 Difference]: With dead ends: 667 [2024-10-14 10:37:02,451 INFO L226 Difference]: Without dead ends: 401 [2024-10-14 10:37:02,452 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=172, Invalid=478, Unknown=0, NotChecked=0, Total=650 [2024-10-14 10:37:02,453 INFO L432 NwaCegarLoop]: 123 mSDtfsCounter, 260 mSDsluCounter, 759 mSDsCounter, 0 mSdLazyCounter, 652 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 882 SdHoareTripleChecker+Invalid, 735 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 652 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-14 10:37:02,453 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [260 Valid, 882 Invalid, 735 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 652 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-14 10:37:02,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2024-10-14 10:37:02,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 356. [2024-10-14 10:37:02,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 356 states, 243 states have (on average 1.3868312757201646) internal successors, (337), 243 states have internal predecessors, (337), 108 states have call successors, (108), 4 states have call predecessors, (108), 4 states have return successors, (108), 108 states have call predecessors, (108), 108 states have call successors, (108) [2024-10-14 10:37:02,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 553 transitions. [2024-10-14 10:37:02,483 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 553 transitions. Word has length 172 [2024-10-14 10:37:02,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 10:37:02,484 INFO L471 AbstractCegarLoop]: Abstraction has 356 states and 553 transitions. [2024-10-14 10:37:02,484 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.857142857142857) internal successors, (40), 14 states have internal predecessors, (40), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-14 10:37:02,484 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 553 transitions. [2024-10-14 10:37:02,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-10-14 10:37:02,486 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 10:37:02,486 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 10:37:02,486 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-14 10:37:02,487 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 10:37:02,487 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 10:37:02,487 INFO L85 PathProgramCache]: Analyzing trace with hash -2037729983, now seen corresponding path program 1 times [2024-10-14 10:37:02,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 10:37:02,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825929991] [2024-10-14 10:37:02,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 10:37:02,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 10:37:02,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:10,337 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 10:37:10,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:10,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 10:37:10,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:10,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 10:37:10,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:10,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 10:37:10,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:10,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 10:37:10,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:10,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 10:37:10,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:10,352 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 10:37:10,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:10,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 10:37:10,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:10,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 10:37:10,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:10,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 10:37:10,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:10,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 10:37:10,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:10,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 10:37:10,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:10,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-14 10:37:10,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:10,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 10:37:10,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:10,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-14 10:37:10,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:10,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 10:37:10,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:10,373 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-14 10:37:10,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:10,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 10:37:10,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:10,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-14 10:37:10,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:10,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-14 10:37:10,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:10,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-14 10:37:10,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:10,383 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-14 10:37:10,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:10,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-14 10:37:10,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:10,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-14 10:37:10,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:10,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-14 10:37:10,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:10,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-14 10:37:10,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:10,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-10-14 10:37:10,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:10,422 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-10-14 10:37:10,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 10:37:10,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825929991] [2024-10-14 10:37:10,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [825929991] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 10:37:10,423 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 10:37:10,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-10-14 10:37:10,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936589673] [2024-10-14 10:37:10,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 10:37:10,423 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-14 10:37:10,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 10:37:10,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-14 10:37:10,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2024-10-14 10:37:10,425 INFO L87 Difference]: Start difference. First operand 356 states and 553 transitions. Second operand has 15 states, 15 states have (on average 2.6666666666666665) internal successors, (40), 15 states have internal predecessors, (40), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-14 10:37:16,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 10:37:16,851 INFO L93 Difference]: Finished difference Result 420 states and 626 transitions. [2024-10-14 10:37:16,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-10-14 10:37:16,854 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.6666666666666665) internal successors, (40), 15 states have internal predecessors, (40), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 172 [2024-10-14 10:37:16,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 10:37:16,859 INFO L225 Difference]: With dead ends: 420 [2024-10-14 10:37:16,859 INFO L226 Difference]: Without dead ends: 418 [2024-10-14 10:37:16,860 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 7.5s TimeCoverageRelationStatistics Valid=264, Invalid=666, Unknown=0, NotChecked=0, Total=930 [2024-10-14 10:37:16,860 INFO L432 NwaCegarLoop]: 120 mSDtfsCounter, 346 mSDsluCounter, 515 mSDsCounter, 0 mSdLazyCounter, 372 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 346 SdHoareTripleChecker+Valid, 635 SdHoareTripleChecker+Invalid, 482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 372 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-10-14 10:37:16,861 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [346 Valid, 635 Invalid, 482 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 372 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-10-14 10:37:16,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2024-10-14 10:37:16,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 365. [2024-10-14 10:37:16,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365 states, 252 states have (on average 1.3849206349206349) internal successors, (349), 252 states have internal predecessors, (349), 108 states have call successors, (108), 4 states have call predecessors, (108), 4 states have return successors, (108), 108 states have call predecessors, (108), 108 states have call successors, (108) [2024-10-14 10:37:16,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 565 transitions. [2024-10-14 10:37:16,889 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 565 transitions. Word has length 172 [2024-10-14 10:37:16,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 10:37:16,890 INFO L471 AbstractCegarLoop]: Abstraction has 365 states and 565 transitions. [2024-10-14 10:37:16,890 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.6666666666666665) internal successors, (40), 15 states have internal predecessors, (40), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-14 10:37:16,890 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 565 transitions. [2024-10-14 10:37:16,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-10-14 10:37:16,892 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 10:37:16,892 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 10:37:16,892 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-14 10:37:16,892 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 10:37:16,893 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 10:37:16,893 INFO L85 PathProgramCache]: Analyzing trace with hash 1447890687, now seen corresponding path program 1 times [2024-10-14 10:37:16,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 10:37:16,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967772560] [2024-10-14 10:37:16,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 10:37:16,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 10:37:16,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:21,202 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 10:37:21,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:21,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 10:37:21,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:21,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 10:37:21,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:21,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 10:37:21,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:21,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 10:37:21,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:21,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 10:37:21,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:21,222 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 10:37:21,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:21,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 10:37:21,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:21,228 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 10:37:21,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:21,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 10:37:21,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:21,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 10:37:21,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:21,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 10:37:21,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:21,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-14 10:37:21,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:21,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 10:37:21,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:21,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-14 10:37:21,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:21,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 10:37:21,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:21,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-14 10:37:21,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:21,257 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 10:37:21,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:21,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-14 10:37:21,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:21,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-14 10:37:21,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:21,267 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-14 10:37:21,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:21,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-14 10:37:21,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:21,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-14 10:37:21,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:21,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-14 10:37:21,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:21,283 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-14 10:37:21,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:21,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-14 10:37:21,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:21,289 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-10-14 10:37:21,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:21,293 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-10-14 10:37:21,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 10:37:21,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1967772560] [2024-10-14 10:37:21,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1967772560] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 10:37:21,294 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 10:37:21,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-10-14 10:37:21,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901434239] [2024-10-14 10:37:21,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 10:37:21,295 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-10-14 10:37:21,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 10:37:21,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-10-14 10:37:21,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=177, Unknown=0, NotChecked=0, Total=240 [2024-10-14 10:37:21,296 INFO L87 Difference]: Start difference. First operand 365 states and 565 transitions. Second operand has 16 states, 15 states have (on average 2.6666666666666665) internal successors, (40), 16 states have internal predecessors, (40), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 2 states have call successors, (27) [2024-10-14 10:37:23,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 10:37:23,601 INFO L93 Difference]: Finished difference Result 414 states and 620 transitions. [2024-10-14 10:37:23,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-10-14 10:37:23,601 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.6666666666666665) internal successors, (40), 16 states have internal predecessors, (40), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 2 states have call successors, (27) Word has length 172 [2024-10-14 10:37:23,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 10:37:23,604 INFO L225 Difference]: With dead ends: 414 [2024-10-14 10:37:23,604 INFO L226 Difference]: Without dead ends: 412 [2024-10-14 10:37:23,604 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=280, Invalid=650, Unknown=0, NotChecked=0, Total=930 [2024-10-14 10:37:23,605 INFO L432 NwaCegarLoop]: 121 mSDtfsCounter, 360 mSDsluCounter, 597 mSDsCounter, 0 mSdLazyCounter, 552 mSolverCounterSat, 138 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 360 SdHoareTripleChecker+Valid, 718 SdHoareTripleChecker+Invalid, 690 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 138 IncrementalHoareTripleChecker+Valid, 552 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-14 10:37:23,607 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [360 Valid, 718 Invalid, 690 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [138 Valid, 552 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-14 10:37:23,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2024-10-14 10:37:23,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 365. [2024-10-14 10:37:23,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365 states, 252 states have (on average 1.3849206349206349) internal successors, (349), 252 states have internal predecessors, (349), 108 states have call successors, (108), 4 states have call predecessors, (108), 4 states have return successors, (108), 108 states have call predecessors, (108), 108 states have call successors, (108) [2024-10-14 10:37:23,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 565 transitions. [2024-10-14 10:37:23,636 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 565 transitions. Word has length 172 [2024-10-14 10:37:23,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 10:37:23,638 INFO L471 AbstractCegarLoop]: Abstraction has 365 states and 565 transitions. [2024-10-14 10:37:23,638 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.6666666666666665) internal successors, (40), 16 states have internal predecessors, (40), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 2 states have call successors, (27) [2024-10-14 10:37:23,638 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 565 transitions. [2024-10-14 10:37:23,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-10-14 10:37:23,640 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 10:37:23,640 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 10:37:23,640 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-14 10:37:23,640 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 10:37:23,641 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 10:37:23,641 INFO L85 PathProgramCache]: Analyzing trace with hash 1698304216, now seen corresponding path program 1 times [2024-10-14 10:37:23,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 10:37:23,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272699014] [2024-10-14 10:37:23,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 10:37:23,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 10:37:23,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:26,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 10:37:26,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:26,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 10:37:26,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:26,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 10:37:26,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:26,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 10:37:26,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:26,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 10:37:26,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:26,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 10:37:26,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:26,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 10:37:26,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:26,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 10:37:26,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:26,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 10:37:26,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:26,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 10:37:26,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:26,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 10:37:26,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:26,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 10:37:26,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:26,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-14 10:37:26,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:26,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 10:37:26,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:26,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-14 10:37:26,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:26,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 10:37:26,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:26,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-14 10:37:26,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:26,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 10:37:26,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:26,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-14 10:37:26,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:26,559 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-14 10:37:26,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:26,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-14 10:37:26,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:26,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-14 10:37:26,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:26,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-14 10:37:26,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:26,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-14 10:37:26,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:26,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-14 10:37:26,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:26,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-14 10:37:26,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:26,582 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-10-14 10:37:26,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:26,588 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-10-14 10:37:26,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 10:37:26,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272699014] [2024-10-14 10:37:26,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [272699014] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 10:37:26,588 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 10:37:26,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-10-14 10:37:26,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069007187] [2024-10-14 10:37:26,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 10:37:26,589 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-10-14 10:37:26,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 10:37:26,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-10-14 10:37:26,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2024-10-14 10:37:26,590 INFO L87 Difference]: Start difference. First operand 365 states and 565 transitions. Second operand has 16 states, 16 states have (on average 2.5625) internal successors, (41), 16 states have internal predecessors, (41), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-10-14 10:37:27,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 10:37:27,955 INFO L93 Difference]: Finished difference Result 407 states and 611 transitions. [2024-10-14 10:37:27,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-10-14 10:37:27,956 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.5625) internal successors, (41), 16 states have internal predecessors, (41), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 173 [2024-10-14 10:37:27,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 10:37:27,959 INFO L225 Difference]: With dead ends: 407 [2024-10-14 10:37:27,959 INFO L226 Difference]: Without dead ends: 405 [2024-10-14 10:37:27,959 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 194 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=282, Invalid=840, Unknown=0, NotChecked=0, Total=1122 [2024-10-14 10:37:27,960 INFO L432 NwaCegarLoop]: 117 mSDtfsCounter, 261 mSDsluCounter, 861 mSDsCounter, 0 mSdLazyCounter, 774 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 261 SdHoareTripleChecker+Valid, 978 SdHoareTripleChecker+Invalid, 860 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 774 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-14 10:37:27,960 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [261 Valid, 978 Invalid, 860 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 774 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-14 10:37:27,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2024-10-14 10:37:27,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 362. [2024-10-14 10:37:27,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 249 states have (on average 1.3855421686746987) internal successors, (345), 249 states have internal predecessors, (345), 108 states have call successors, (108), 4 states have call predecessors, (108), 4 states have return successors, (108), 108 states have call predecessors, (108), 108 states have call successors, (108) [2024-10-14 10:37:27,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 561 transitions. [2024-10-14 10:37:27,987 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 561 transitions. Word has length 173 [2024-10-14 10:37:27,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 10:37:27,988 INFO L471 AbstractCegarLoop]: Abstraction has 362 states and 561 transitions. [2024-10-14 10:37:27,988 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.5625) internal successors, (41), 16 states have internal predecessors, (41), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-10-14 10:37:27,988 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 561 transitions. [2024-10-14 10:37:27,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-10-14 10:37:27,989 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 10:37:27,989 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 10:37:27,989 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-14 10:37:27,990 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 10:37:27,990 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 10:37:27,990 INFO L85 PathProgramCache]: Analyzing trace with hash -1327803303, now seen corresponding path program 1 times [2024-10-14 10:37:27,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 10:37:27,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119610020] [2024-10-14 10:37:27,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 10:37:27,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 10:37:28,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:32,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 10:37:32,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:32,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 10:37:32,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:32,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 10:37:32,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:32,311 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 10:37:32,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:32,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 10:37:32,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:32,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 10:37:32,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:32,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 10:37:32,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:32,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 10:37:32,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:32,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 10:37:32,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:32,325 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 10:37:32,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:32,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 10:37:32,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:32,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 10:37:32,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:32,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-14 10:37:32,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:32,333 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 10:37:32,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:32,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-14 10:37:32,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:32,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 10:37:32,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:32,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-14 10:37:32,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:32,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 10:37:32,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:32,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-14 10:37:32,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:32,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-14 10:37:32,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:32,349 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-14 10:37:32,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:32,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-14 10:37:32,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:32,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-14 10:37:32,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:32,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-14 10:37:32,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:32,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-14 10:37:32,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:32,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-14 10:37:32,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:32,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-10-14 10:37:32,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:32,366 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-10-14 10:37:32,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 10:37:32,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119610020] [2024-10-14 10:37:32,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [119610020] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 10:37:32,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 10:37:32,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-10-14 10:37:32,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758764805] [2024-10-14 10:37:32,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 10:37:32,368 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-14 10:37:32,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 10:37:32,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-14 10:37:32,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2024-10-14 10:37:32,369 INFO L87 Difference]: Start difference. First operand 362 states and 561 transitions. Second operand has 15 states, 15 states have (on average 2.7333333333333334) internal successors, (41), 15 states have internal predecessors, (41), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-14 10:37:35,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 10:37:35,822 INFO L93 Difference]: Finished difference Result 421 states and 627 transitions. [2024-10-14 10:37:35,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-10-14 10:37:35,823 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.7333333333333334) internal successors, (41), 15 states have internal predecessors, (41), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 173 [2024-10-14 10:37:35,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 10:37:35,826 INFO L225 Difference]: With dead ends: 421 [2024-10-14 10:37:35,826 INFO L226 Difference]: Without dead ends: 419 [2024-10-14 10:37:35,827 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=348, Invalid=842, Unknown=0, NotChecked=0, Total=1190 [2024-10-14 10:37:35,828 INFO L432 NwaCegarLoop]: 122 mSDtfsCounter, 278 mSDsluCounter, 688 mSDsCounter, 0 mSdLazyCounter, 543 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 278 SdHoareTripleChecker+Valid, 810 SdHoareTripleChecker+Invalid, 626 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 543 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-10-14 10:37:35,828 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [278 Valid, 810 Invalid, 626 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 543 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-10-14 10:37:35,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states. [2024-10-14 10:37:35,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 365. [2024-10-14 10:37:35,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365 states, 252 states have (on average 1.3849206349206349) internal successors, (349), 252 states have internal predecessors, (349), 108 states have call successors, (108), 4 states have call predecessors, (108), 4 states have return successors, (108), 108 states have call predecessors, (108), 108 states have call successors, (108) [2024-10-14 10:37:35,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 565 transitions. [2024-10-14 10:37:35,853 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 565 transitions. Word has length 173 [2024-10-14 10:37:35,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 10:37:35,854 INFO L471 AbstractCegarLoop]: Abstraction has 365 states and 565 transitions. [2024-10-14 10:37:35,854 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.7333333333333334) internal successors, (41), 15 states have internal predecessors, (41), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-14 10:37:35,854 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 565 transitions. [2024-10-14 10:37:35,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-10-14 10:37:35,855 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 10:37:35,855 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 10:37:35,856 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-14 10:37:35,856 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 10:37:35,856 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 10:37:35,856 INFO L85 PathProgramCache]: Analyzing trace with hash 1254241075, now seen corresponding path program 1 times [2024-10-14 10:37:35,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 10:37:35,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590140667] [2024-10-14 10:37:35,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 10:37:35,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 10:37:35,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:46,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 10:37:46,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:46,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 10:37:46,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:46,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 10:37:46,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:46,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 10:37:46,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:46,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 10:37:46,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:46,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 10:37:46,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:46,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 10:37:46,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:46,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 10:37:46,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:46,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 10:37:46,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:46,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 10:37:46,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:46,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 10:37:46,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:46,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 10:37:46,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:46,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-14 10:37:46,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:46,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 10:37:46,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:46,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-14 10:37:46,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:46,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 10:37:46,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:46,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-14 10:37:46,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:46,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 10:37:46,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:46,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-14 10:37:46,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:46,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-14 10:37:46,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:46,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-14 10:37:46,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:46,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-14 10:37:46,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:46,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-14 10:37:46,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:46,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-14 10:37:46,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:46,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-14 10:37:46,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:46,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-14 10:37:46,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:46,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-10-14 10:37:46,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:37:46,880 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-10-14 10:37:46,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 10:37:46,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590140667] [2024-10-14 10:37:46,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590140667] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 10:37:46,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 10:37:46,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-10-14 10:37:46,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115761537] [2024-10-14 10:37:46,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 10:37:46,881 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-10-14 10:37:46,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 10:37:46,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-10-14 10:37:46,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2024-10-14 10:37:46,883 INFO L87 Difference]: Start difference. First operand 365 states and 565 transitions. Second operand has 16 states, 16 states have (on average 2.5625) internal successors, (41), 16 states have internal predecessors, (41), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-14 10:37:55,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 10:37:55,334 INFO L93 Difference]: Finished difference Result 417 states and 623 transitions. [2024-10-14 10:37:55,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-14 10:37:55,335 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.5625) internal successors, (41), 16 states have internal predecessors, (41), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 173 [2024-10-14 10:37:55,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 10:37:55,338 INFO L225 Difference]: With dead ends: 417 [2024-10-14 10:37:55,338 INFO L226 Difference]: Without dead ends: 415 [2024-10-14 10:37:55,338 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 11.3s TimeCoverageRelationStatistics Valid=295, Invalid=761, Unknown=0, NotChecked=0, Total=1056 [2024-10-14 10:37:55,339 INFO L432 NwaCegarLoop]: 120 mSDtfsCounter, 347 mSDsluCounter, 631 mSDsCounter, 0 mSdLazyCounter, 713 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 347 SdHoareTripleChecker+Valid, 751 SdHoareTripleChecker+Invalid, 823 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 713 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-10-14 10:37:55,339 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [347 Valid, 751 Invalid, 823 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 713 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-10-14 10:37:55,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2024-10-14 10:37:55,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 368. [2024-10-14 10:37:55,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 368 states, 255 states have (on average 1.384313725490196) internal successors, (353), 255 states have internal predecessors, (353), 108 states have call successors, (108), 4 states have call predecessors, (108), 4 states have return successors, (108), 108 states have call predecessors, (108), 108 states have call successors, (108) [2024-10-14 10:37:55,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 569 transitions. [2024-10-14 10:37:55,367 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 569 transitions. Word has length 173 [2024-10-14 10:37:55,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 10:37:55,368 INFO L471 AbstractCegarLoop]: Abstraction has 368 states and 569 transitions. [2024-10-14 10:37:55,368 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.5625) internal successors, (41), 16 states have internal predecessors, (41), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-14 10:37:55,368 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 569 transitions. [2024-10-14 10:37:55,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-10-14 10:37:55,369 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 10:37:55,369 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 10:37:55,369 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-14 10:37:55,370 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 10:37:55,370 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 10:37:55,370 INFO L85 PathProgramCache]: Analyzing trace with hash -647744933, now seen corresponding path program 1 times [2024-10-14 10:37:55,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 10:37:55,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034445340] [2024-10-14 10:37:55,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 10:37:55,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 10:37:55,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat