./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-co_file-86.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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 ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-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 1e62b2891163903ae3ee64b4d61486cfcc5cc9524351bb686ca581fbf5cc2640 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 14:49:29,045 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 14:49:29,129 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 14:49:29,134 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 14:49:29,135 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 14:49:29,156 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 14:49:29,157 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 14:49:29,157 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 14:49:29,158 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 14:49:29,158 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 14:49:29,158 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 14:49:29,159 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 14:49:29,159 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 14:49:29,160 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 14:49:29,160 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 14:49:29,161 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 14:49:29,162 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 14:49:29,162 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 14:49:29,162 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 14:49:29,162 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 14:49:29,163 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 14:49:29,167 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 14:49:29,168 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 14:49:29,168 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 14:49:29,168 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 14:49:29,168 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 14:49:29,168 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 14:49:29,169 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 14:49:29,169 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 14:49:29,169 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 14:49:29,169 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 14:49:29,169 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 14:49:29,169 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 14:49:29,170 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 14:49:29,170 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 14:49:29,171 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 14:49:29,171 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 14:49:29,171 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 14:49:29,172 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 14:49:29,172 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 14:49:29,173 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 14:49:29,173 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 14:49:29,173 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1e62b2891163903ae3ee64b4d61486cfcc5cc9524351bb686ca581fbf5cc2640 [2024-11-16 14:49:29,424 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 14:49:29,448 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 14:49:29,451 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 14:49:29,452 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 14:49:29,452 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 14:49:29,453 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-co_file-86.i [2024-11-16 14:49:30,913 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 14:49:31,116 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 14:49:31,117 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-co_file-86.i [2024-11-16 14:49:31,135 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a718e4cd/78dedf717f014cca8fa99331662e07d5/FLAG016919faa [2024-11-16 14:49:31,148 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a718e4cd/78dedf717f014cca8fa99331662e07d5 [2024-11-16 14:49:31,150 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 14:49:31,152 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 14:49:31,153 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 14:49:31,153 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 14:49:31,158 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 14:49:31,159 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 02:49:31" (1/1) ... [2024-11-16 14:49:31,160 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55c58c1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:49:31, skipping insertion in model container [2024-11-16 14:49:31,160 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 02:49:31" (1/1) ... [2024-11-16 14:49:31,194 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 14:49:31,387 WARN L250 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-pr-co_file-86.i[919,932] [2024-11-16 14:49:31,453 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 14:49:31,466 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 14:49:31,475 WARN L250 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-pr-co_file-86.i[919,932] [2024-11-16 14:49:31,508 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 14:49:31,533 INFO L204 MainTranslator]: Completed translation [2024-11-16 14:49:31,534 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:49:31 WrapperNode [2024-11-16 14:49:31,534 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 14:49:31,535 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 14:49:31,535 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 14:49:31,535 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 14:49:31,542 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:49:31" (1/1) ... [2024-11-16 14:49:31,557 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:49:31" (1/1) ... [2024-11-16 14:49:31,606 INFO L138 Inliner]: procedures = 26, calls = 40, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 235 [2024-11-16 14:49:31,606 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 14:49:31,607 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 14:49:31,607 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 14:49:31,608 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 14:49:31,616 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:49:31" (1/1) ... [2024-11-16 14:49:31,617 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:49:31" (1/1) ... [2024-11-16 14:49:31,621 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:49:31" (1/1) ... [2024-11-16 14:49:31,640 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]. [2024-11-16 14:49:31,641 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:49:31" (1/1) ... [2024-11-16 14:49:31,641 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:49:31" (1/1) ... [2024-11-16 14:49:31,659 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:49:31" (1/1) ... [2024-11-16 14:49:31,662 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:49:31" (1/1) ... [2024-11-16 14:49:31,665 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:49:31" (1/1) ... [2024-11-16 14:49:31,667 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:49:31" (1/1) ... [2024-11-16 14:49:31,674 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 14:49:31,675 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 14:49:31,675 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 14:49:31,675 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 14:49:31,676 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:49:31" (1/1) ... [2024-11-16 14:49:31,683 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 14:49:31,697 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 14:49:31,716 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) [2024-11-16 14:49:31,719 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 [2024-11-16 14:49:31,764 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 14:49:31,765 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-16 14:49:31,765 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-16 14:49:31,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 14:49:31,765 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 14:49:31,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 14:49:31,839 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 14:49:31,841 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 14:49:32,376 INFO L? ?]: Removed 23 outVars from TransFormulas that were not future-live. [2024-11-16 14:49:32,377 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 14:49:32,402 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 14:49:32,402 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 14:49:32,402 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 02:49:32 BoogieIcfgContainer [2024-11-16 14:49:32,403 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 14:49:32,405 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 14:49:32,405 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 14:49:32,408 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 14:49:32,409 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 02:49:31" (1/3) ... [2024-11-16 14:49:32,410 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73802bd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 02:49:32, skipping insertion in model container [2024-11-16 14:49:32,410 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:49:31" (2/3) ... [2024-11-16 14:49:32,412 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73802bd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 02:49:32, skipping insertion in model container [2024-11-16 14:49:32,412 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 02:49:32" (3/3) ... [2024-11-16 14:49:32,413 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pr-co_file-86.i [2024-11-16 14:49:32,431 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 14:49:32,431 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 14:49:32,498 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 14:49:32,507 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;@832d64c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 14:49:32,508 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 14:49:32,512 INFO L276 IsEmpty]: Start isEmpty. Operand has 100 states, 70 states have (on average 1.4714285714285715) internal successors, (103), 71 states have internal predecessors, (103), 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) [2024-11-16 14:49:32,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-16 14:49:32,530 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 14:49:32,530 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, 1, 1, 1] [2024-11-16 14:49:32,531 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 14:49:32,535 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 14:49:32,535 INFO L85 PathProgramCache]: Analyzing trace with hash -1702157946, now seen corresponding path program 1 times [2024-11-16 14:49:32,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 14:49:32,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553477300] [2024-11-16 14:49:32,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 14:49:32,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 14:49:32,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:32,924 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 14:49:32,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:32,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 14:49:32,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:32,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 14:49:32,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:32,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 14:49:32,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:32,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 14:49:32,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:32,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 14:49:32,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:32,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 14:49:32,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:32,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 14:49:32,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:32,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 14:49:32,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:32,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 14:49:33,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:33,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 14:49:33,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:33,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 14:49:33,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:33,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-16 14:49:33,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:33,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 14:49:33,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:33,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-16 14:49:33,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:33,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 14:49:33,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:33,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-16 14:49:33,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:33,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-16 14:49:33,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:33,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-16 14:49:33,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:33,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-16 14:49:33,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:33,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-16 14:49:33,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:33,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-16 14:49:33,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:33,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-16 14:49:33,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:33,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-16 14:49:33,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:33,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-16 14:49:33,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:33,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-11-16 14:49:33,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:33,108 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-16 14:49:33,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:33,120 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-16 14:49:33,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 14:49:33,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553477300] [2024-11-16 14:49:33,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553477300] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 14:49:33,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 14:49:33,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 14:49:33,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205488856] [2024-11-16 14:49:33,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 14:49:33,131 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 14:49:33,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 14:49:33,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 14:49:33,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 14:49:33,162 INFO L87 Difference]: Start difference. First operand has 100 states, 70 states have (on average 1.4714285714285715) internal successors, (103), 71 states have internal predecessors, (103), 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 22.0) internal successors, (44), 2 states have internal predecessors, (44), 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) [2024-11-16 14:49:33,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 14:49:33,218 INFO L93 Difference]: Finished difference Result 192 states and 334 transitions. [2024-11-16 14:49:33,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 14:49:33,223 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 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 176 [2024-11-16 14:49:33,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 14:49:33,233 INFO L225 Difference]: With dead ends: 192 [2024-11-16 14:49:33,234 INFO L226 Difference]: Without dead ends: 95 [2024-11-16 14:49:33,238 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 [2024-11-16 14:49:33,242 INFO L432 NwaCegarLoop]: 144 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 14:49:33,243 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 144 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 14:49:33,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2024-11-16 14:49:33,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2024-11-16 14:49:33,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 66 states have (on average 1.4242424242424243) internal successors, (94), 66 states have internal predecessors, (94), 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) [2024-11-16 14:49:33,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 148 transitions. [2024-11-16 14:49:33,299 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 148 transitions. Word has length 176 [2024-11-16 14:49:33,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 14:49:33,300 INFO L471 AbstractCegarLoop]: Abstraction has 95 states and 148 transitions. [2024-11-16 14:49:33,300 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 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) [2024-11-16 14:49:33,300 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 148 transitions. [2024-11-16 14:49:33,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-16 14:49:33,304 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 14:49:33,304 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, 1, 1, 1] [2024-11-16 14:49:33,305 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 14:49:33,305 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 14:49:33,305 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 14:49:33,306 INFO L85 PathProgramCache]: Analyzing trace with hash -455791577, now seen corresponding path program 1 times [2024-11-16 14:49:33,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 14:49:33,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982318302] [2024-11-16 14:49:33,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 14:49:33,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 14:49:33,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:33,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 14:49:33,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:33,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 14:49:33,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:33,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 14:49:33,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:33,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 14:49:33,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:33,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 14:49:33,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:33,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 14:49:33,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:33,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 14:49:33,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:33,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 14:49:33,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:33,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 14:49:33,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:33,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 14:49:33,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:33,715 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 14:49:33,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:33,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 14:49:33,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:33,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-16 14:49:33,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:33,736 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 14:49:33,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:33,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-16 14:49:33,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:33,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 14:49:33,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:33,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-16 14:49:33,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:33,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-16 14:49:33,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:33,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-16 14:49:33,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:33,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-16 14:49:33,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:33,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-16 14:49:33,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:33,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-16 14:49:33,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:33,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-16 14:49:33,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:33,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-16 14:49:33,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:33,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-16 14:49:33,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:33,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-11-16 14:49:33,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:33,800 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-16 14:49:33,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:33,805 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-16 14:49:33,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 14:49:33,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982318302] [2024-11-16 14:49:33,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982318302] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 14:49:33,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 14:49:33,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 14:49:33,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379380402] [2024-11-16 14:49:33,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 14:49:33,808 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 14:49:33,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 14:49:33,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 14:49:33,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 14:49:33,809 INFO L87 Difference]: Start difference. First operand 95 states and 148 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 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) [2024-11-16 14:49:33,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 14:49:33,861 INFO L93 Difference]: Finished difference Result 188 states and 295 transitions. [2024-11-16 14:49:33,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 14:49:33,863 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 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 176 [2024-11-16 14:49:33,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 14:49:33,865 INFO L225 Difference]: With dead ends: 188 [2024-11-16 14:49:33,865 INFO L226 Difference]: Without dead ends: 96 [2024-11-16 14:49:33,866 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 [2024-11-16 14:49:33,870 INFO L432 NwaCegarLoop]: 143 mSDtfsCounter, 0 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 281 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 14:49:33,870 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 281 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 14:49:33,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2024-11-16 14:49:33,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2024-11-16 14:49:33,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 67 states have (on average 1.4179104477611941) internal successors, (95), 67 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) [2024-11-16 14:49:33,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 149 transitions. [2024-11-16 14:49:33,892 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 149 transitions. Word has length 176 [2024-11-16 14:49:33,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 14:49:33,895 INFO L471 AbstractCegarLoop]: Abstraction has 96 states and 149 transitions. [2024-11-16 14:49:33,895 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 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) [2024-11-16 14:49:33,896 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 149 transitions. [2024-11-16 14:49:33,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-16 14:49:33,901 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 14:49:33,901 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, 1, 1, 1] [2024-11-16 14:49:33,902 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 14:49:33,902 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 14:49:33,902 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 14:49:33,902 INFO L85 PathProgramCache]: Analyzing trace with hash -966325754, now seen corresponding path program 1 times [2024-11-16 14:49:33,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 14:49:33,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215476440] [2024-11-16 14:49:33,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 14:49:33,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 14:49:33,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:34,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 14:49:34,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:34,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 14:49:34,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:34,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 14:49:34,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:34,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 14:49:34,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:34,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 14:49:34,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:34,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 14:49:34,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:34,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 14:49:34,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:34,250 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 14:49:34,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:34,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 14:49:34,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:34,257 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 14:49:34,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:34,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 14:49:34,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:34,267 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 14:49:34,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:34,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-16 14:49:34,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:34,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 14:49:34,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:34,278 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-16 14:49:34,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:34,282 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 14:49:34,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:34,287 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-16 14:49:34,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:34,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-16 14:49:34,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:34,299 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-16 14:49:34,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:34,306 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-16 14:49:34,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:34,313 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-16 14:49:34,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:34,320 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-16 14:49:34,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:34,325 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-16 14:49:34,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:34,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-16 14:49:34,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:34,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-16 14:49:34,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:34,344 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-11-16 14:49:34,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:34,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-16 14:49:34,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:34,360 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-16 14:49:34,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 14:49:34,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215476440] [2024-11-16 14:49:34,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215476440] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 14:49:34,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 14:49:34,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 14:49:34,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801280621] [2024-11-16 14:49:34,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 14:49:34,362 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 14:49:34,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 14:49:34,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 14:49:34,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 14:49:34,363 INFO L87 Difference]: Start difference. First operand 96 states and 149 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 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) [2024-11-16 14:49:34,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 14:49:34,714 INFO L93 Difference]: Finished difference Result 284 states and 443 transitions. [2024-11-16 14:49:34,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 14:49:34,715 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 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 176 [2024-11-16 14:49:34,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 14:49:34,720 INFO L225 Difference]: With dead ends: 284 [2024-11-16 14:49:34,720 INFO L226 Difference]: Without dead ends: 191 [2024-11-16 14:49:34,721 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 [2024-11-16 14:49:34,722 INFO L432 NwaCegarLoop]: 127 mSDtfsCounter, 152 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 455 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 14:49:34,723 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 455 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 14:49:34,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2024-11-16 14:49:34,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 170. [2024-11-16 14:49:34,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 113 states have (on average 1.3893805309734513) internal successors, (157), 113 states have internal predecessors, (157), 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) [2024-11-16 14:49:34,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 265 transitions. [2024-11-16 14:49:34,749 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 265 transitions. Word has length 176 [2024-11-16 14:49:34,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 14:49:34,753 INFO L471 AbstractCegarLoop]: Abstraction has 170 states and 265 transitions. [2024-11-16 14:49:34,753 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 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) [2024-11-16 14:49:34,753 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 265 transitions. [2024-11-16 14:49:34,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-16 14:49:34,757 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 14:49:34,758 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, 1, 1, 1] [2024-11-16 14:49:34,758 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 14:49:34,758 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 14:49:34,758 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 14:49:34,758 INFO L85 PathProgramCache]: Analyzing trace with hash 1290585253, now seen corresponding path program 1 times [2024-11-16 14:49:34,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 14:49:34,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588641253] [2024-11-16 14:49:34,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 14:49:34,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 14:49:34,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:35,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 14:49:35,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:35,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 14:49:35,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:35,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 14:49:35,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:35,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 14:49:35,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:35,087 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 14:49:35,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:35,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 14:49:35,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:35,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 14:49:35,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:35,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 14:49:35,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:35,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 14:49:35,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:35,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 14:49:35,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:35,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 14:49:35,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:35,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 14:49:35,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:35,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-16 14:49:35,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:35,139 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 14:49:35,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:35,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-16 14:49:35,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:35,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 14:49:35,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:35,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-16 14:49:35,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:35,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-16 14:49:35,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:35,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-16 14:49:35,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:35,171 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-16 14:49:35,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:35,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-16 14:49:35,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:35,182 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-16 14:49:35,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:35,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-16 14:49:35,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:35,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-16 14:49:35,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:35,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-16 14:49:35,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:35,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-11-16 14:49:35,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:35,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-16 14:49:35,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:35,214 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-16 14:49:35,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 14:49:35,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588641253] [2024-11-16 14:49:35,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588641253] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 14:49:35,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 14:49:35,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 14:49:35,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065151299] [2024-11-16 14:49:35,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 14:49:35,216 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 14:49:35,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 14:49:35,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 14:49:35,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 14:49:35,217 INFO L87 Difference]: Start difference. First operand 170 states and 265 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 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) [2024-11-16 14:49:35,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 14:49:35,273 INFO L93 Difference]: Finished difference Result 387 states and 606 transitions. [2024-11-16 14:49:35,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 14:49:35,273 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 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 176 [2024-11-16 14:49:35,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 14:49:35,279 INFO L225 Difference]: With dead ends: 387 [2024-11-16 14:49:35,279 INFO L226 Difference]: Without dead ends: 269 [2024-11-16 14:49:35,280 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 [2024-11-16 14:49:35,281 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 99 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 315 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 [2024-11-16 14:49:35,281 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 315 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 14:49:35,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2024-11-16 14:49:35,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 266. [2024-11-16 14:49:35,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 181 states have (on average 1.4033149171270718) internal successors, (254), 181 states have internal predecessors, (254), 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) [2024-11-16 14:49:35,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 416 transitions. [2024-11-16 14:49:35,326 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 416 transitions. Word has length 176 [2024-11-16 14:49:35,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 14:49:35,326 INFO L471 AbstractCegarLoop]: Abstraction has 266 states and 416 transitions. [2024-11-16 14:49:35,326 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 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) [2024-11-16 14:49:35,327 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 416 transitions. [2024-11-16 14:49:35,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-16 14:49:35,329 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 14:49:35,329 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, 1, 1, 1] [2024-11-16 14:49:35,330 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 14:49:35,330 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 14:49:35,330 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 14:49:35,330 INFO L85 PathProgramCache]: Analyzing trace with hash 1501936166, now seen corresponding path program 1 times [2024-11-16 14:49:35,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 14:49:35,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900698928] [2024-11-16 14:49:35,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 14:49:35,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 14:49:35,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:42,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 14:49:42,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:42,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 14:49:42,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:42,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 14:49:42,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:42,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 14:49:42,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:42,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 14:49:42,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:42,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 14:49:42,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:42,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 14:49:42,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:42,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 14:49:42,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:42,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 14:49:42,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:42,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 14:49:42,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:42,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 14:49:42,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:42,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 14:49:42,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:42,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-16 14:49:42,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:42,376 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 14:49:42,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:42,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-16 14:49:42,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:42,383 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 14:49:42,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:42,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-16 14:49:42,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:42,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-16 14:49:42,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:42,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-16 14:49:42,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:42,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-16 14:49:42,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:42,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-16 14:49:42,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:42,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-16 14:49:42,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:42,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-16 14:49:42,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:42,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-16 14:49:42,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:42,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-16 14:49:42,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:42,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-11-16 14:49:42,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:42,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-16 14:49:42,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:42,412 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-16 14:49:42,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 14:49:42,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900698928] [2024-11-16 14:49:42,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900698928] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 14:49:42,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 14:49:42,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-16 14:49:42,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215509299] [2024-11-16 14:49:42,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 14:49:42,414 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-16 14:49:42,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 14:49:42,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-16 14:49:42,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2024-11-16 14:49:42,416 INFO L87 Difference]: Start difference. First operand 266 states and 416 transitions. Second operand has 16 states, 16 states have (on average 2.75) internal successors, (44), 16 states have internal predecessors, (44), 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) [2024-11-16 14:49:45,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 14:49:45,286 INFO L93 Difference]: Finished difference Result 493 states and 757 transitions. [2024-11-16 14:49:45,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-16 14:49:45,287 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.75) internal successors, (44), 16 states have internal predecessors, (44), 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 176 [2024-11-16 14:49:45,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 14:49:45,290 INFO L225 Difference]: With dead ends: 493 [2024-11-16 14:49:45,290 INFO L226 Difference]: Without dead ends: 396 [2024-11-16 14:49:45,291 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 179 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=256, Invalid=736, Unknown=0, NotChecked=0, Total=992 [2024-11-16 14:49:45,292 INFO L432 NwaCegarLoop]: 110 mSDtfsCounter, 604 mSDsluCounter, 849 mSDsCounter, 0 mSdLazyCounter, 502 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 604 SdHoareTripleChecker+Valid, 959 SdHoareTripleChecker+Invalid, 587 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 502 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-16 14:49:45,293 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [604 Valid, 959 Invalid, 587 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 502 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-16 14:49:45,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2024-11-16 14:49:45,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 304. [2024-11-16 14:49:45,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 219 states have (on average 1.4246575342465753) internal successors, (312), 219 states have internal predecessors, (312), 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) [2024-11-16 14:49:45,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 474 transitions. [2024-11-16 14:49:45,320 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 474 transitions. Word has length 176 [2024-11-16 14:49:45,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 14:49:45,321 INFO L471 AbstractCegarLoop]: Abstraction has 304 states and 474 transitions. [2024-11-16 14:49:45,321 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.75) internal successors, (44), 16 states have internal predecessors, (44), 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) [2024-11-16 14:49:45,322 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 474 transitions. [2024-11-16 14:49:45,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-16 14:49:45,323 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 14:49:45,323 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, 1, 1, 1] [2024-11-16 14:49:45,324 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 14:49:45,324 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 14:49:45,324 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 14:49:45,324 INFO L85 PathProgramCache]: Analyzing trace with hash -1285479321, now seen corresponding path program 1 times [2024-11-16 14:49:45,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 14:49:45,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599303611] [2024-11-16 14:49:45,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 14:49:45,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 14:49:45,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:45,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 14:49:45,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:45,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 14:49:45,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:45,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 14:49:45,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:45,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 14:49:45,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:45,395 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 14:49:45,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:45,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 14:49:45,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:45,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 14:49:45,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:45,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 14:49:45,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:45,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 14:49:45,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:45,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 14:49:45,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:45,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 14:49:45,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:45,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 14:49:45,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:45,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-16 14:49:45,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:45,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 14:49:45,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:45,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-16 14:49:45,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:45,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 14:49:45,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:45,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-16 14:49:45,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:45,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-16 14:49:45,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:45,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-16 14:49:45,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:45,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-16 14:49:45,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:45,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-16 14:49:45,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:45,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-16 14:49:45,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:45,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-16 14:49:45,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:45,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-16 14:49:45,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:45,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-16 14:49:45,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:45,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-11-16 14:49:45,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:45,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-16 14:49:45,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:45,430 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-16 14:49:45,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 14:49:45,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599303611] [2024-11-16 14:49:45,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [599303611] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 14:49:45,430 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 14:49:45,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 14:49:45,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081270637] [2024-11-16 14:49:45,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 14:49:45,431 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 14:49:45,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 14:49:45,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 14:49:45,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 14:49:45,432 INFO L87 Difference]: Start difference. First operand 304 states and 474 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 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) [2024-11-16 14:49:45,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 14:49:45,483 INFO L93 Difference]: Finished difference Result 623 states and 976 transitions. [2024-11-16 14:49:45,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 14:49:45,484 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 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 176 [2024-11-16 14:49:45,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 14:49:45,487 INFO L225 Difference]: With dead ends: 623 [2024-11-16 14:49:45,488 INFO L226 Difference]: Without dead ends: 431 [2024-11-16 14:49:45,488 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 [2024-11-16 14:49:45,489 INFO L432 NwaCegarLoop]: 193 mSDtfsCounter, 140 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 322 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 14:49:45,490 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 322 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 14:49:45,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states. [2024-11-16 14:49:45,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 428. [2024-11-16 14:49:45,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 428 states, 315 states have (on average 1.4222222222222223) internal successors, (448), 315 states have internal predecessors, (448), 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) [2024-11-16 14:49:45,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 664 transitions. [2024-11-16 14:49:45,524 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 664 transitions. Word has length 176 [2024-11-16 14:49:45,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 14:49:45,525 INFO L471 AbstractCegarLoop]: Abstraction has 428 states and 664 transitions. [2024-11-16 14:49:45,525 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 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) [2024-11-16 14:49:45,525 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 664 transitions. [2024-11-16 14:49:45,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-11-16 14:49:45,527 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 14:49:45,527 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, 1, 1, 1, 1] [2024-11-16 14:49:45,527 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 14:49:45,529 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 14:49:45,529 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 14:49:45,530 INFO L85 PathProgramCache]: Analyzing trace with hash 2140276188, now seen corresponding path program 1 times [2024-11-16 14:49:45,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 14:49:45,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106919179] [2024-11-16 14:49:45,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 14:49:45,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 14:49:45,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:52,484 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 14:49:52,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:52,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 14:49:52,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:52,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 14:49:52,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:52,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 14:49:52,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:52,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 14:49:52,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:52,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 14:49:52,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:52,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 14:49:52,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:52,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 14:49:52,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:52,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 14:49:52,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:52,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 14:49:52,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:52,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 14:49:52,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:52,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 14:49:52,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:52,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-16 14:49:52,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:52,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 14:49:52,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:52,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-16 14:49:52,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:52,547 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 14:49:52,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:52,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-16 14:49:52,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:52,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-16 14:49:52,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:52,559 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-16 14:49:52,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:52,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-16 14:49:52,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:52,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-16 14:49:52,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:52,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-16 14:49:52,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:52,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-16 14:49:52,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:52,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-16 14:49:52,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:52,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-16 14:49:52,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:52,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-11-16 14:49:52,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:52,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-16 14:49:52,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:52,595 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-16 14:49:52,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 14:49:52,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106919179] [2024-11-16 14:49:52,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [106919179] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 14:49:52,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 14:49:52,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-16 14:49:52,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100713766] [2024-11-16 14:49:52,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 14:49:52,597 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-16 14:49:52,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 14:49:52,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-16 14:49:52,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=210, Unknown=0, NotChecked=0, Total=272 [2024-11-16 14:49:52,598 INFO L87 Difference]: Start difference. First operand 428 states and 664 transitions. Second operand has 17 states, 17 states have (on average 2.6470588235294117) internal successors, (45), 17 states have internal predecessors, (45), 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) [2024-11-16 14:49:56,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 14:49:56,111 INFO L93 Difference]: Finished difference Result 538 states and 815 transitions. [2024-11-16 14:49:56,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-16 14:49:56,113 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.6470588235294117) internal successors, (45), 17 states have internal predecessors, (45), 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 177 [2024-11-16 14:49:56,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 14:49:56,121 INFO L225 Difference]: With dead ends: 538 [2024-11-16 14:49:56,122 INFO L226 Difference]: Without dead ends: 535 [2024-11-16 14:49:56,123 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 205 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=287, Invalid=835, Unknown=0, NotChecked=0, Total=1122 [2024-11-16 14:49:56,123 INFO L432 NwaCegarLoop]: 113 mSDtfsCounter, 592 mSDsluCounter, 900 mSDsCounter, 0 mSdLazyCounter, 573 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 592 SdHoareTripleChecker+Valid, 1013 SdHoareTripleChecker+Invalid, 655 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 573 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-16 14:49:56,124 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [592 Valid, 1013 Invalid, 655 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 573 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-16 14:49:56,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 535 states. [2024-11-16 14:49:56,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 535 to 429. [2024-11-16 14:49:56,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 429 states, 316 states have (on average 1.4208860759493671) internal successors, (449), 316 states have internal predecessors, (449), 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) [2024-11-16 14:49:56,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 665 transitions. [2024-11-16 14:49:56,156 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 665 transitions. Word has length 177 [2024-11-16 14:49:56,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 14:49:56,157 INFO L471 AbstractCegarLoop]: Abstraction has 429 states and 665 transitions. [2024-11-16 14:49:56,157 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.6470588235294117) internal successors, (45), 17 states have internal predecessors, (45), 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) [2024-11-16 14:49:56,158 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 665 transitions. [2024-11-16 14:49:56,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-11-16 14:49:56,159 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 14:49:56,160 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, 1, 1, 1, 1] [2024-11-16 14:49:56,160 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 14:49:56,160 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 14:49:56,160 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 14:49:56,161 INFO L85 PathProgramCache]: Analyzing trace with hash -1208866599, now seen corresponding path program 1 times [2024-11-16 14:49:56,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 14:49:56,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295500940] [2024-11-16 14:49:56,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 14:49:56,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 14:49:56,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:56,355 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 14:49:56,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:56,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 14:49:56,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:56,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 14:49:56,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:56,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 14:49:56,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:56,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 14:49:56,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:56,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 14:49:56,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:56,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 14:49:56,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:56,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 14:49:56,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:56,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 14:49:56,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:56,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 14:49:56,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:56,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 14:49:56,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:56,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 14:49:56,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:56,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-16 14:49:56,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:56,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 14:49:56,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:56,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-16 14:49:56,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:56,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 14:49:56,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:56,383 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-16 14:49:56,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:56,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-16 14:49:56,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:56,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-16 14:49:56,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:56,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-16 14:49:56,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:56,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-16 14:49:56,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:56,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-16 14:49:56,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:56,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-16 14:49:56,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:56,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-16 14:49:56,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:56,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-16 14:49:56,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:56,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-11-16 14:49:56,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:56,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-16 14:49:56,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:49:56,406 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-16 14:49:56,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 14:49:56,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295500940] [2024-11-16 14:49:56,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1295500940] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 14:49:56,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 14:49:56,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 14:49:56,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5275597] [2024-11-16 14:49:56,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 14:49:56,408 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 14:49:56,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 14:49:56,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 14:49:56,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 14:49:56,410 INFO L87 Difference]: Start difference. First operand 429 states and 665 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 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) [2024-11-16 14:49:56,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 14:49:56,498 INFO L93 Difference]: Finished difference Result 750 states and 1157 transitions. [2024-11-16 14:49:56,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 14:49:56,499 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 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 177 [2024-11-16 14:49:56,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 14:49:56,503 INFO L225 Difference]: With dead ends: 750 [2024-11-16 14:49:56,503 INFO L226 Difference]: Without dead ends: 459 [2024-11-16 14:49:56,505 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 14:49:56,506 INFO L432 NwaCegarLoop]: 160 mSDtfsCounter, 58 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 399 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 14:49:56,507 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 399 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 14:49:56,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 459 states. [2024-11-16 14:49:56,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 459 to 441. [2024-11-16 14:49:56,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 441 states, 325 states have (on average 1.396923076923077) internal successors, (454), 325 states have internal predecessors, (454), 108 states have call successors, (108), 7 states have call predecessors, (108), 7 states have return successors, (108), 108 states have call predecessors, (108), 108 states have call successors, (108) [2024-11-16 14:49:56,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 670 transitions. [2024-11-16 14:49:56,545 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 670 transitions. Word has length 177 [2024-11-16 14:49:56,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 14:49:56,545 INFO L471 AbstractCegarLoop]: Abstraction has 441 states and 670 transitions. [2024-11-16 14:49:56,546 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 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) [2024-11-16 14:49:56,546 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 670 transitions. [2024-11-16 14:49:56,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-11-16 14:49:56,548 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 14:49:56,548 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, 1, 1, 1, 1] [2024-11-16 14:49:56,549 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 14:49:56,549 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 14:49:56,549 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 14:49:56,549 INFO L85 PathProgramCache]: Analyzing trace with hash 1278646234, now seen corresponding path program 1 times [2024-11-16 14:49:56,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 14:49:56,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294751012] [2024-11-16 14:49:56,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 14:49:56,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 14:49:56,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:50:05,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 14:50:05,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:50:05,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 14:50:05,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:50:05,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 14:50:05,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:50:05,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 14:50:05,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:50:05,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 14:50:05,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:50:05,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 14:50:05,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:50:05,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 14:50:05,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:50:05,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 14:50:05,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:50:05,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 14:50:05,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:50:05,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 14:50:05,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:50:05,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 14:50:05,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:50:05,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 14:50:05,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:50:05,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-16 14:50:05,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:50:05,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 14:50:05,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:50:05,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-16 14:50:05,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:50:05,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 14:50:05,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:50:05,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-16 14:50:05,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:50:05,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-16 14:50:05,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:50:05,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-16 14:50:05,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:50:05,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-16 14:50:05,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:50:05,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-16 14:50:05,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:50:05,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-16 14:50:05,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:50:05,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-16 14:50:05,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:50:05,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-16 14:50:05,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:50:05,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-16 14:50:05,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:50:05,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-11-16 14:50:05,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:50:05,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-16 14:50:05,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:50:05,693 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-16 14:50:05,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 14:50:05,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294751012] [2024-11-16 14:50:05,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294751012] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 14:50:05,694 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 14:50:05,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-16 14:50:05,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112819903] [2024-11-16 14:50:05,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 14:50:05,695 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-16 14:50:05,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 14:50:05,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-16 14:50:05,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2024-11-16 14:50:05,696 INFO L87 Difference]: Start difference. First operand 441 states and 670 transitions. Second operand has 17 states, 17 states have (on average 2.6470588235294117) internal successors, (45), 17 states have internal predecessors, (45), 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) [2024-11-16 14:50:10,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 14:50:10,024 INFO L93 Difference]: Finished difference Result 817 states and 1226 transitions. [2024-11-16 14:50:10,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-16 14:50:10,026 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.6470588235294117) internal successors, (45), 17 states have internal predecessors, (45), 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 177 [2024-11-16 14:50:10,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 14:50:10,029 INFO L225 Difference]: With dead ends: 817 [2024-11-16 14:50:10,029 INFO L226 Difference]: Without dead ends: 486 [2024-11-16 14:50:10,031 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=227, Invalid=703, Unknown=0, NotChecked=0, Total=930 [2024-11-16 14:50:10,031 INFO L432 NwaCegarLoop]: 123 mSDtfsCounter, 937 mSDsluCounter, 873 mSDsCounter, 0 mSdLazyCounter, 765 mSolverCounterSat, 149 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 937 SdHoareTripleChecker+Valid, 996 SdHoareTripleChecker+Invalid, 914 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 149 IncrementalHoareTripleChecker+Valid, 765 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-16 14:50:10,031 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [937 Valid, 996 Invalid, 914 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [149 Valid, 765 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-16 14:50:10,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 486 states. [2024-11-16 14:50:10,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 486 to 416. [2024-11-16 14:50:10,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 416 states, 300 states have (on average 1.38) internal successors, (414), 300 states have internal predecessors, (414), 108 states have call successors, (108), 7 states have call predecessors, (108), 7 states have return successors, (108), 108 states have call predecessors, (108), 108 states have call successors, (108) [2024-11-16 14:50:10,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 416 states and 630 transitions. [2024-11-16 14:50:10,058 INFO L78 Accepts]: Start accepts. Automaton has 416 states and 630 transitions. Word has length 177 [2024-11-16 14:50:10,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 14:50:10,058 INFO L471 AbstractCegarLoop]: Abstraction has 416 states and 630 transitions. [2024-11-16 14:50:10,059 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.6470588235294117) internal successors, (45), 17 states have internal predecessors, (45), 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) [2024-11-16 14:50:10,059 INFO L276 IsEmpty]: Start isEmpty. Operand 416 states and 630 transitions. [2024-11-16 14:50:10,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-11-16 14:50:10,060 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 14:50:10,060 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, 1, 1, 1, 1] [2024-11-16 14:50:10,061 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 14:50:10,061 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 14:50:10,061 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 14:50:10,061 INFO L85 PathProgramCache]: Analyzing trace with hash -144262931, now seen corresponding path program 1 times [2024-11-16 14:50:10,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 14:50:10,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195221262] [2024-11-16 14:50:10,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 14:50:10,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 14:50:10,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:50:15,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 14:50:15,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:50:15,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 14:50:15,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:50:15,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 14:50:15,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:50:15,736 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 14:50:15,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:50:15,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 14:50:15,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:50:15,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 14:50:15,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:50:15,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 14:50:15,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:50:15,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 14:50:15,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:50:15,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 14:50:15,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:50:15,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 14:50:15,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:50:15,759 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 14:50:15,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:50:15,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 14:50:15,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:50:15,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-16 14:50:15,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:50:15,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 14:50:15,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:50:15,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-16 14:50:15,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:50:15,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 14:50:15,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:50:15,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-16 14:50:15,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:50:15,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-16 14:50:15,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:50:15,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-16 14:50:15,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:50:15,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-16 14:50:15,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:50:15,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-16 14:50:15,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:50:15,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-16 14:50:15,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:50:15,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-16 14:50:15,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:50:15,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-16 14:50:15,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:50:15,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-16 14:50:15,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:50:15,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-11-16 14:50:15,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:50:15,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-16 14:50:15,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:50:15,839 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-16 14:50:15,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 14:50:15,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195221262] [2024-11-16 14:50:15,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195221262] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 14:50:15,840 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 14:50:15,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-16 14:50:15,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180758436] [2024-11-16 14:50:15,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 14:50:15,841 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-16 14:50:15,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 14:50:15,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-16 14:50:15,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=179, Unknown=0, NotChecked=0, Total=240 [2024-11-16 14:50:15,843 INFO L87 Difference]: Start difference. First operand 416 states and 630 transitions. Second operand has 16 states, 16 states have (on average 2.8125) internal successors, (45), 16 states have internal predecessors, (45), 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) [2024-11-16 14:50:18,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 14:50:18,635 INFO L93 Difference]: Finished difference Result 524 states and 769 transitions. [2024-11-16 14:50:18,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-16 14:50:18,636 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.8125) internal successors, (45), 16 states have internal predecessors, (45), 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 177 [2024-11-16 14:50:18,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 14:50:18,639 INFO L225 Difference]: With dead ends: 524 [2024-11-16 14:50:18,639 INFO L226 Difference]: Without dead ends: 521 [2024-11-16 14:50:18,640 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 190 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=300, Invalid=756, Unknown=0, NotChecked=0, Total=1056 [2024-11-16 14:50:18,640 INFO L432 NwaCegarLoop]: 131 mSDtfsCounter, 585 mSDsluCounter, 896 mSDsCounter, 0 mSdLazyCounter, 596 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 585 SdHoareTripleChecker+Valid, 1027 SdHoareTripleChecker+Invalid, 678 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 596 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-16 14:50:18,641 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [585 Valid, 1027 Invalid, 678 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 596 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-16 14:50:18,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 521 states. [2024-11-16 14:50:18,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 521 to 435. [2024-11-16 14:50:18,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 435 states, 319 states have (on average 1.3855799373040751) internal successors, (442), 319 states have internal predecessors, (442), 108 states have call successors, (108), 7 states have call predecessors, (108), 7 states have return successors, (108), 108 states have call predecessors, (108), 108 states have call successors, (108) [2024-11-16 14:50:18,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 435 states to 435 states and 658 transitions. [2024-11-16 14:50:18,666 INFO L78 Accepts]: Start accepts. Automaton has 435 states and 658 transitions. Word has length 177 [2024-11-16 14:50:18,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 14:50:18,667 INFO L471 AbstractCegarLoop]: Abstraction has 435 states and 658 transitions. [2024-11-16 14:50:18,667 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.8125) internal successors, (45), 16 states have internal predecessors, (45), 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) [2024-11-16 14:50:18,667 INFO L276 IsEmpty]: Start isEmpty. Operand 435 states and 658 transitions. [2024-11-16 14:50:18,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-11-16 14:50:18,669 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 14:50:18,669 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, 1, 1, 1, 1] [2024-11-16 14:50:18,669 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 14:50:18,669 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 14:50:18,670 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 14:50:18,670 INFO L85 PathProgramCache]: Analyzing trace with hash -437665938, now seen corresponding path program 1 times [2024-11-16 14:50:18,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 14:50:18,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029612157] [2024-11-16 14:50:18,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 14:50:18,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 14:50:18,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:50:28,349 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 14:50:28,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:50:28,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 14:50:28,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:50:28,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 14:50:28,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:50:28,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 14:50:28,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:50:28,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 14:50:28,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:50:28,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 14:50:28,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:50:28,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 14:50:28,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:50:28,376 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 14:50:28,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:50:28,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 14:50:28,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:50:28,383 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 14:50:28,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:50:28,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 14:50:28,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:50:28,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 14:50:28,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:50:28,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-16 14:50:28,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:50:28,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 14:50:28,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:50:28,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-16 14:50:28,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:50:28,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 14:50:28,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:50:28,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-16 14:50:28,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:50:28,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-16 14:50:28,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:50:28,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-16 14:50:28,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:50:28,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-16 14:50:28,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:50:28,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-16 14:50:28,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:50:28,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-16 14:50:28,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:50:28,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-16 14:50:28,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:50:28,446 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-16 14:50:28,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:50:28,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-16 14:50:28,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:50:28,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-11-16 14:50:28,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:50:28,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-16 14:50:28,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:50:28,484 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-16 14:50:28,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 14:50:28,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029612157] [2024-11-16 14:50:28,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1029612157] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 14:50:28,485 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 14:50:28,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-16 14:50:28,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959117580] [2024-11-16 14:50:28,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 14:50:28,486 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-16 14:50:28,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 14:50:28,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-16 14:50:28,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=208, Unknown=0, NotChecked=0, Total=272 [2024-11-16 14:50:28,488 INFO L87 Difference]: Start difference. First operand 435 states and 658 transitions. Second operand has 17 states, 17 states have (on average 2.6470588235294117) internal successors, (45), 17 states have internal predecessors, (45), 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) [2024-11-16 14:50:34,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 14:50:34,330 INFO L93 Difference]: Finished difference Result 513 states and 759 transitions. [2024-11-16 14:50:34,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-16 14:50:34,331 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.6470588235294117) internal successors, (45), 17 states have internal predecessors, (45), 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 177 [2024-11-16 14:50:34,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 14:50:34,335 INFO L225 Difference]: With dead ends: 513 [2024-11-16 14:50:34,335 INFO L226 Difference]: Without dead ends: 510 [2024-11-16 14:50:34,337 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 6.9s TimeCoverageRelationStatistics Valid=243, Invalid=627, Unknown=0, NotChecked=0, Total=870 [2024-11-16 14:50:34,337 INFO L432 NwaCegarLoop]: 143 mSDtfsCounter, 335 mSDsluCounter, 914 mSDsCounter, 0 mSdLazyCounter, 552 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 335 SdHoareTripleChecker+Valid, 1057 SdHoareTripleChecker+Invalid, 635 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 552 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-16 14:50:34,338 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [335 Valid, 1057 Invalid, 635 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 552 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-16 14:50:34,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 510 states. [2024-11-16 14:50:34,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 510 to 435. [2024-11-16 14:50:34,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 435 states, 319 states have (on average 1.3855799373040751) internal successors, (442), 319 states have internal predecessors, (442), 108 states have call successors, (108), 7 states have call predecessors, (108), 7 states have return successors, (108), 108 states have call predecessors, (108), 108 states have call successors, (108) [2024-11-16 14:50:34,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 435 states to 435 states and 658 transitions. [2024-11-16 14:50:34,365 INFO L78 Accepts]: Start accepts. Automaton has 435 states and 658 transitions. Word has length 177 [2024-11-16 14:50:34,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 14:50:34,367 INFO L471 AbstractCegarLoop]: Abstraction has 435 states and 658 transitions. [2024-11-16 14:50:34,367 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.6470588235294117) internal successors, (45), 17 states have internal predecessors, (45), 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) [2024-11-16 14:50:34,367 INFO L276 IsEmpty]: Start isEmpty. Operand 435 states and 658 transitions. [2024-11-16 14:50:34,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-16 14:50:34,369 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 14:50:34,370 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, 1, 1, 1, 1, 1] [2024-11-16 14:50:34,370 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 14:50:34,370 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 14:50:34,370 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 14:50:34,371 INFO L85 PathProgramCache]: Analyzing trace with hash -486744408, now seen corresponding path program 1 times [2024-11-16 14:50:34,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 14:50:34,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797722552] [2024-11-16 14:50:34,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 14:50:34,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 14:50:34,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:50:43,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 14:50:43,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:50:43,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 14:50:43,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:50:43,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 14:50:43,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:50:43,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 14:50:43,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:50:43,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 14:50:43,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:50:43,202 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 14:50:43,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:50:43,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 14:50:43,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:50:43,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 14:50:43,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:50:43,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 14:50:43,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:50:43,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 14:50:43,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:50:43,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 14:50:43,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:50:43,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 14:50:43,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:50:43,214 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-16 14:50:43,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:50:43,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 14:50:43,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:50:43,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-16 14:50:43,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:50:43,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 14:50:43,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:50:43,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-16 14:50:43,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:50:43,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-16 14:50:43,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:50:43,233 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-16 14:50:43,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:50:43,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-16 14:50:43,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:50:43,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-16 14:50:43,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:50:43,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-16 14:50:43,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:50:43,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-16 14:50:43,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:50:43,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-16 14:50:43,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:50:43,250 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-16 14:50:43,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:50:43,253 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-11-16 14:50:43,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:50:43,257 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-16 14:50:43,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:50:43,262 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-16 14:50:43,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 14:50:43,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797722552] [2024-11-16 14:50:43,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797722552] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 14:50:43,263 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 14:50:43,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-16 14:50:43,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885818688] [2024-11-16 14:50:43,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 14:50:43,264 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-16 14:50:43,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 14:50:43,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-16 14:50:43,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=212, Unknown=0, NotChecked=0, Total=272 [2024-11-16 14:50:43,265 INFO L87 Difference]: Start difference. First operand 435 states and 658 transitions. Second operand has 17 states, 17 states have (on average 2.7058823529411766) internal successors, (46), 17 states have internal predecessors, (46), 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) [2024-11-16 14:50:48,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 14:50:48,038 INFO L93 Difference]: Finished difference Result 493 states and 730 transitions. [2024-11-16 14:50:48,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-16 14:50:48,039 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.7058823529411766) internal successors, (46), 17 states have internal predecessors, (46), 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 178 [2024-11-16 14:50:48,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 14:50:48,042 INFO L225 Difference]: With dead ends: 493 [2024-11-16 14:50:48,042 INFO L226 Difference]: Without dead ends: 490 [2024-11-16 14:50:48,043 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=252, Invalid=740, Unknown=0, NotChecked=0, Total=992 [2024-11-16 14:50:48,044 INFO L432 NwaCegarLoop]: 133 mSDtfsCounter, 581 mSDsluCounter, 979 mSDsCounter, 0 mSdLazyCounter, 706 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 581 SdHoareTripleChecker+Valid, 1112 SdHoareTripleChecker+Invalid, 788 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 706 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-16 14:50:48,044 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [581 Valid, 1112 Invalid, 788 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 706 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-16 14:50:48,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490 states. [2024-11-16 14:50:48,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490 to 432. [2024-11-16 14:50:48,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 432 states, 316 states have (on average 1.3860759493670887) internal successors, (438), 316 states have internal predecessors, (438), 108 states have call successors, (108), 7 states have call predecessors, (108), 7 states have return successors, (108), 108 states have call predecessors, (108), 108 states have call successors, (108) [2024-11-16 14:50:48,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 432 states to 432 states and 654 transitions. [2024-11-16 14:50:48,073 INFO L78 Accepts]: Start accepts. Automaton has 432 states and 654 transitions. Word has length 178 [2024-11-16 14:50:48,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 14:50:48,074 INFO L471 AbstractCegarLoop]: Abstraction has 432 states and 654 transitions. [2024-11-16 14:50:48,074 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.7058823529411766) internal successors, (46), 17 states have internal predecessors, (46), 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) [2024-11-16 14:50:48,074 INFO L276 IsEmpty]: Start isEmpty. Operand 432 states and 654 transitions. [2024-11-16 14:50:48,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-16 14:50:48,075 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 14:50:48,075 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, 1, 1, 1, 1, 1] [2024-11-16 14:50:48,075 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 14:50:48,076 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 14:50:48,076 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 14:50:48,076 INFO L85 PathProgramCache]: Analyzing trace with hash -759751882, now seen corresponding path program 1 times [2024-11-16 14:50:48,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 14:50:48,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685329049] [2024-11-16 14:50:48,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 14:50:48,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 14:50:48,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat