./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-45.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-pe-ci_file-45.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 bbb30f5a716e95823cb1372888b0a3f5fc4a46205d14c7acf98f1ada42093098 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 13:50:17,239 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 13:50:17,317 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 13:50:17,321 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 13:50:17,321 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 13:50:17,340 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 13:50:17,340 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 13:50:17,341 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 13:50:17,341 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 13:50:17,342 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 13:50:17,342 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 13:50:17,342 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 13:50:17,343 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 13:50:17,343 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 13:50:17,345 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 13:50:17,345 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 13:50:17,357 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 13:50:17,357 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 13:50:17,357 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 13:50:17,358 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 13:50:17,358 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 13:50:17,359 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 13:50:17,359 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 13:50:17,359 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 13:50:17,360 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 13:50:17,360 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 13:50:17,360 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 13:50:17,361 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 13:50:17,361 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 13:50:17,361 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 13:50:17,362 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 13:50:17,362 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 13:50:17,362 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 13:50:17,363 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 13:50:17,363 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 13:50:17,363 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 13:50:17,364 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 13:50:17,364 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 13:50:17,364 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 13:50:17,365 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 13:50:17,365 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 13:50:17,367 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 13:50:17,368 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bbb30f5a716e95823cb1372888b0a3f5fc4a46205d14c7acf98f1ada42093098 [2024-11-16 13:50:17,604 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 13:50:17,620 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 13:50:17,624 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 13:50:17,625 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 13:50:17,625 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 13:50:17,626 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-45.i [2024-11-16 13:50:19,048 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 13:50:19,246 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 13:50:19,248 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-45.i [2024-11-16 13:50:19,258 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/250aa74e6/022e74ec3f75472ab73ad610c20a993b/FLAG3a9ee161d [2024-11-16 13:50:19,613 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/250aa74e6/022e74ec3f75472ab73ad610c20a993b [2024-11-16 13:50:19,616 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 13:50:19,617 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 13:50:19,618 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 13:50:19,618 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 13:50:19,624 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 13:50:19,625 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 01:50:19" (1/1) ... [2024-11-16 13:50:19,626 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40119fcc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 01:50:19, skipping insertion in model container [2024-11-16 13:50:19,626 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 01:50:19" (1/1) ... [2024-11-16 13:50:19,661 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 13:50:19,862 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-pe-ci_file-45.i[919,932] [2024-11-16 13:50:19,952 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 13:50:19,967 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 13:50:19,980 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-pe-ci_file-45.i[919,932] [2024-11-16 13:50:20,015 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 13:50:20,034 INFO L204 MainTranslator]: Completed translation [2024-11-16 13:50:20,034 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 01:50:20 WrapperNode [2024-11-16 13:50:20,034 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 13:50:20,035 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 13:50:20,035 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 13:50:20,035 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 13:50:20,042 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 01:50:20" (1/1) ... [2024-11-16 13:50:20,051 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 01:50:20" (1/1) ... [2024-11-16 13:50:20,095 INFO L138 Inliner]: procedures = 26, calls = 39, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 191 [2024-11-16 13:50:20,096 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 13:50:20,097 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 13:50:20,097 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 13:50:20,097 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 13:50:20,120 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 01:50:20" (1/1) ... [2024-11-16 13:50:20,121 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 01:50:20" (1/1) ... [2024-11-16 13:50:20,125 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 01:50:20" (1/1) ... [2024-11-16 13:50:20,154 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 13:50:20,155 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 01:50:20" (1/1) ... [2024-11-16 13:50:20,155 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 01:50:20" (1/1) ... [2024-11-16 13:50:20,167 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 01:50:20" (1/1) ... [2024-11-16 13:50:20,168 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 01:50:20" (1/1) ... [2024-11-16 13:50:20,169 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 01:50:20" (1/1) ... [2024-11-16 13:50:20,171 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 01:50:20" (1/1) ... [2024-11-16 13:50:20,176 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 13:50:20,176 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 13:50:20,179 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 13:50:20,179 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 13:50:20,180 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 01:50:20" (1/1) ... [2024-11-16 13:50:20,192 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 13:50:20,204 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 13:50:20,223 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 13:50:20,229 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 13:50:20,288 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 13:50:20,288 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-16 13:50:20,289 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-16 13:50:20,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 13:50:20,290 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 13:50:20,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 13:50:20,418 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 13:50:20,420 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 13:50:20,783 INFO L? ?]: Removed 16 outVars from TransFormulas that were not future-live. [2024-11-16 13:50:20,784 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 13:50:20,802 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 13:50:20,803 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 13:50:20,804 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 01:50:20 BoogieIcfgContainer [2024-11-16 13:50:20,804 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 13:50:20,807 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 13:50:20,807 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 13:50:20,811 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 13:50:20,811 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 01:50:19" (1/3) ... [2024-11-16 13:50:20,812 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2859135f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 01:50:20, skipping insertion in model container [2024-11-16 13:50:20,812 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 01:50:20" (2/3) ... [2024-11-16 13:50:20,813 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2859135f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 01:50:20, skipping insertion in model container [2024-11-16 13:50:20,813 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 01:50:20" (3/3) ... [2024-11-16 13:50:20,815 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pe-ci_file-45.i [2024-11-16 13:50:20,834 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 13:50:20,834 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 13:50:20,915 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 13:50:20,922 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;@761b3f95, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 13:50:20,923 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 13:50:20,927 INFO L276 IsEmpty]: Start isEmpty. Operand has 88 states, 59 states have (on average 1.4067796610169492) internal successors, (83), 60 states have internal predecessors, (83), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-16 13:50:20,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-16 13:50:20,946 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 13:50:20,947 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:50:20,948 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 13:50:20,953 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 13:50:20,954 INFO L85 PathProgramCache]: Analyzing trace with hash 2115212478, now seen corresponding path program 1 times [2024-11-16 13:50:20,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 13:50:20,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978693786] [2024-11-16 13:50:20,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 13:50:20,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 13:50:21,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:21,308 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 13:50:21,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:21,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 13:50:21,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:21,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 13:50:21,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:21,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 13:50:21,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:21,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 13:50:21,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:21,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 13:50:21,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:21,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 13:50:21,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:21,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 13:50:21,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:21,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 13:50:21,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:21,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 13:50:21,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:21,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 13:50:21,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:21,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 13:50:21,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:21,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 13:50:21,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:21,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 13:50:21,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:21,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 13:50:21,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:21,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 13:50:21,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:21,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-16 13:50:21,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:21,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-16 13:50:21,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:21,446 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-16 13:50:21,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:21,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-16 13:50:21,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:21,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-16 13:50:21,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:21,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-11-16 13:50:21,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:21,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-11-16 13:50:21,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:21,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-11-16 13:50:21,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:21,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-16 13:50:21,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:21,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-11-16 13:50:21,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:21,500 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-11-16 13:50:21,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 13:50:21,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978693786] [2024-11-16 13:50:21,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1978693786] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 13:50:21,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 13:50:21,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 13:50:21,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860163860] [2024-11-16 13:50:21,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 13:50:21,510 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 13:50:21,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 13:50:21,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 13:50:21,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 13:50:21,539 INFO L87 Difference]: Start difference. First operand has 88 states, 59 states have (on average 1.4067796610169492) internal successors, (83), 60 states have internal predecessors, (83), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) Second operand has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 2 states have call successors, (26) [2024-11-16 13:50:21,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 13:50:21,584 INFO L93 Difference]: Finished difference Result 168 states and 289 transitions. [2024-11-16 13:50:21,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 13:50:21,586 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 2 states have call successors, (26) Word has length 175 [2024-11-16 13:50:21,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 13:50:21,594 INFO L225 Difference]: With dead ends: 168 [2024-11-16 13:50:21,594 INFO L226 Difference]: Without dead ends: 83 [2024-11-16 13:50:21,599 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 80 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 13:50:21,603 INFO L432 NwaCegarLoop]: 126 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 13:50:21,606 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 13:50:21,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2024-11-16 13:50:21,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2024-11-16 13:50:21,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 55 states have (on average 1.3454545454545455) internal successors, (74), 55 states have internal predecessors, (74), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-16 13:50:21,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 126 transitions. [2024-11-16 13:50:21,661 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 126 transitions. Word has length 175 [2024-11-16 13:50:21,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 13:50:21,661 INFO L471 AbstractCegarLoop]: Abstraction has 83 states and 126 transitions. [2024-11-16 13:50:21,661 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 2 states have call successors, (26) [2024-11-16 13:50:21,662 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 126 transitions. [2024-11-16 13:50:21,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-16 13:50:21,668 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 13:50:21,668 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:50:21,668 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 13:50:21,669 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 13:50:21,670 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 13:50:21,670 INFO L85 PathProgramCache]: Analyzing trace with hash -1785842300, now seen corresponding path program 1 times [2024-11-16 13:50:21,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 13:50:21,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761671127] [2024-11-16 13:50:21,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 13:50:21,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 13:50:21,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:22,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 13:50:22,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:22,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 13:50:22,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:22,060 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 13:50:22,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:22,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 13:50:22,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:22,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 13:50:22,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:22,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 13:50:22,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:22,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 13:50:22,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:22,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 13:50:22,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:22,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 13:50:22,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:22,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 13:50:22,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:22,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 13:50:22,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:22,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 13:50:22,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:22,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 13:50:22,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:22,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 13:50:22,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:22,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 13:50:22,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:22,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 13:50:22,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:22,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-16 13:50:22,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:22,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-16 13:50:22,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:22,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-16 13:50:22,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:22,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-16 13:50:22,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:22,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-16 13:50:22,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:22,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-11-16 13:50:22,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:22,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-11-16 13:50:22,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:22,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-11-16 13:50:22,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:22,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-16 13:50:22,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:22,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-11-16 13:50:22,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:22,159 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-11-16 13:50:22,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 13:50:22,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761671127] [2024-11-16 13:50:22,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761671127] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 13:50:22,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 13:50:22,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 13:50:22,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501984335] [2024-11-16 13:50:22,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 13:50:22,163 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 13:50:22,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 13:50:22,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 13:50:22,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 13:50:22,166 INFO L87 Difference]: Start difference. First operand 83 states and 126 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-11-16 13:50:22,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 13:50:22,240 INFO L93 Difference]: Finished difference Result 240 states and 366 transitions. [2024-11-16 13:50:22,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 13:50:22,242 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 175 [2024-11-16 13:50:22,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 13:50:22,246 INFO L225 Difference]: With dead ends: 240 [2024-11-16 13:50:22,248 INFO L226 Difference]: Without dead ends: 160 [2024-11-16 13:50:22,250 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 13:50:22,252 INFO L432 NwaCegarLoop]: 153 mSDtfsCounter, 115 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 264 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 13:50:22,253 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 264 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 13:50:22,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2024-11-16 13:50:22,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 157. [2024-11-16 13:50:22,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 102 states have (on average 1.3137254901960784) internal successors, (134), 102 states have internal predecessors, (134), 52 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-16 13:50:22,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 238 transitions. [2024-11-16 13:50:22,291 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 238 transitions. Word has length 175 [2024-11-16 13:50:22,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 13:50:22,292 INFO L471 AbstractCegarLoop]: Abstraction has 157 states and 238 transitions. [2024-11-16 13:50:22,292 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-11-16 13:50:22,293 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 238 transitions. [2024-11-16 13:50:22,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-16 13:50:22,295 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 13:50:22,295 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:50:22,295 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 13:50:22,296 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 13:50:22,296 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 13:50:22,296 INFO L85 PathProgramCache]: Analyzing trace with hash -1928011687, now seen corresponding path program 1 times [2024-11-16 13:50:22,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 13:50:22,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764460079] [2024-11-16 13:50:22,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 13:50:22,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 13:50:22,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:22,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 13:50:22,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:22,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 13:50:22,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:22,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 13:50:22,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:22,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 13:50:22,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:22,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 13:50:22,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:22,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 13:50:22,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:22,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 13:50:22,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:22,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 13:50:22,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:22,446 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 13:50:22,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:22,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 13:50:22,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:22,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 13:50:22,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:22,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 13:50:22,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:22,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 13:50:22,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:22,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 13:50:22,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:22,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 13:50:22,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:22,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 13:50:22,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:22,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-16 13:50:22,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:22,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-16 13:50:22,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:22,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-16 13:50:22,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:22,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-16 13:50:22,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:22,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-16 13:50:22,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:22,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-11-16 13:50:22,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:22,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-11-16 13:50:22,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:22,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-11-16 13:50:22,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:22,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-16 13:50:22,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:22,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-11-16 13:50:22,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:22,529 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-11-16 13:50:22,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 13:50:22,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764460079] [2024-11-16 13:50:22,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1764460079] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 13:50:22,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 13:50:22,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 13:50:22,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199922808] [2024-11-16 13:50:22,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 13:50:22,534 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 13:50:22,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 13:50:22,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 13:50:22,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 13:50:22,535 INFO L87 Difference]: Start difference. First operand 157 states and 238 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-11-16 13:50:22,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 13:50:22,587 INFO L93 Difference]: Finished difference Result 362 states and 547 transitions. [2024-11-16 13:50:22,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 13:50:22,588 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 176 [2024-11-16 13:50:22,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 13:50:22,591 INFO L225 Difference]: With dead ends: 362 [2024-11-16 13:50:22,591 INFO L226 Difference]: Without dead ends: 208 [2024-11-16 13:50:22,592 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 13:50:22,593 INFO L432 NwaCegarLoop]: 145 mSDtfsCounter, 35 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 260 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 13:50:22,593 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 260 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 13:50:22,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2024-11-16 13:50:22,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 177. [2024-11-16 13:50:22,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 122 states have (on average 1.3442622950819672) internal successors, (164), 122 states have internal predecessors, (164), 52 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-16 13:50:22,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 268 transitions. [2024-11-16 13:50:22,627 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 268 transitions. Word has length 176 [2024-11-16 13:50:22,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 13:50:22,628 INFO L471 AbstractCegarLoop]: Abstraction has 177 states and 268 transitions. [2024-11-16 13:50:22,630 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-11-16 13:50:22,630 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 268 transitions. [2024-11-16 13:50:22,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-16 13:50:22,636 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 13:50:22,636 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:50:22,636 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 13:50:22,637 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 13:50:22,637 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 13:50:22,637 INFO L85 PathProgramCache]: Analyzing trace with hash 2068873149, now seen corresponding path program 1 times [2024-11-16 13:50:22,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 13:50:22,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63029057] [2024-11-16 13:50:22,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 13:50:22,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 13:50:22,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:33,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 13:50:33,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:33,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 13:50:33,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:33,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 13:50:33,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:33,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 13:50:33,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:33,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 13:50:33,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:33,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 13:50:33,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:33,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 13:50:33,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:33,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 13:50:33,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:33,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 13:50:33,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:33,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 13:50:33,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:33,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 13:50:33,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:33,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 13:50:33,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:33,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 13:50:33,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:33,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 13:50:33,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:33,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 13:50:33,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:33,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 13:50:33,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:33,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-16 13:50:33,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:33,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-16 13:50:33,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:33,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-16 13:50:33,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:33,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-16 13:50:33,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:33,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-16 13:50:33,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:33,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-11-16 13:50:33,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:33,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-11-16 13:50:33,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:33,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-11-16 13:50:33,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:33,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-16 13:50:33,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:33,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-11-16 13:50:33,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:33,878 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-11-16 13:50:33,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 13:50:33,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63029057] [2024-11-16 13:50:33,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [63029057] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 13:50:33,879 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 13:50:33,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 13:50:33,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275733160] [2024-11-16 13:50:33,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 13:50:33,880 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 13:50:33,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 13:50:33,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 13:50:33,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 13:50:33,882 INFO L87 Difference]: Start difference. First operand 177 states and 268 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 2 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2024-11-16 13:50:35,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 13:50:35,889 INFO L93 Difference]: Finished difference Result 474 states and 709 transitions. [2024-11-16 13:50:35,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 13:50:35,891 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 2 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 176 [2024-11-16 13:50:35,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 13:50:35,894 INFO L225 Difference]: With dead ends: 474 [2024-11-16 13:50:35,895 INFO L226 Difference]: Without dead ends: 300 [2024-11-16 13:50:35,896 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-16 13:50:35,897 INFO L432 NwaCegarLoop]: 141 mSDtfsCounter, 262 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 317 SdHoareTripleChecker+Invalid, 357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-16 13:50:35,897 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [262 Valid, 317 Invalid, 357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-16 13:50:35,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2024-11-16 13:50:35,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 264. [2024-11-16 13:50:35,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 264 states, 191 states have (on average 1.3664921465968587) internal successors, (261), 193 states have internal predecessors, (261), 68 states have call successors, (68), 4 states have call predecessors, (68), 4 states have return successors, (68), 66 states have call predecessors, (68), 68 states have call successors, (68) [2024-11-16 13:50:35,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 397 transitions. [2024-11-16 13:50:35,950 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 397 transitions. Word has length 176 [2024-11-16 13:50:35,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 13:50:35,951 INFO L471 AbstractCegarLoop]: Abstraction has 264 states and 397 transitions. [2024-11-16 13:50:35,951 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 2 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2024-11-16 13:50:35,951 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 397 transitions. [2024-11-16 13:50:35,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-16 13:50:35,958 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 13:50:35,958 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:50:35,959 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 13:50:35,959 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 13:50:35,959 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 13:50:35,959 INFO L85 PathProgramCache]: Analyzing trace with hash 1872359644, now seen corresponding path program 1 times [2024-11-16 13:50:35,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 13:50:35,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922778460] [2024-11-16 13:50:35,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 13:50:35,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 13:50:35,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:47,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 13:50:47,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:47,620 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 13:50:47,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:47,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 13:50:47,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:47,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 13:50:47,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:47,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 13:50:47,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:47,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 13:50:47,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:47,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 13:50:47,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:47,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 13:50:47,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:47,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 13:50:47,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:47,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 13:50:47,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:47,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 13:50:47,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:47,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 13:50:47,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:47,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 13:50:47,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:47,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 13:50:47,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:47,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 13:50:47,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:47,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 13:50:47,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:47,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-16 13:50:47,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:47,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-16 13:50:47,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:47,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-16 13:50:47,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:47,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-16 13:50:47,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:47,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-16 13:50:47,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:47,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-11-16 13:50:47,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:47,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-11-16 13:50:47,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:47,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-11-16 13:50:47,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:47,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-16 13:50:47,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:47,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-11-16 13:50:47,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:47,682 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-11-16 13:50:47,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 13:50:47,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922778460] [2024-11-16 13:50:47,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922778460] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 13:50:47,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 13:50:47,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 13:50:47,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588568569] [2024-11-16 13:50:47,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 13:50:47,685 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 13:50:47,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 13:50:47,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 13:50:47,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-16 13:50:47,686 INFO L87 Difference]: Start difference. First operand 264 states and 397 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-11-16 13:50:48,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 13:50:48,508 INFO L93 Difference]: Finished difference Result 722 states and 1078 transitions. [2024-11-16 13:50:48,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 13:50:48,509 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 176 [2024-11-16 13:50:48,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 13:50:48,516 INFO L225 Difference]: With dead ends: 722 [2024-11-16 13:50:48,516 INFO L226 Difference]: Without dead ends: 461 [2024-11-16 13:50:48,517 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-16 13:50:48,518 INFO L432 NwaCegarLoop]: 168 mSDtfsCounter, 138 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 420 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 13:50:48,519 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 420 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 13:50:48,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461 states. [2024-11-16 13:50:48,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461 to 311. [2024-11-16 13:50:48,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 311 states, 238 states have (on average 1.3865546218487395) internal successors, (330), 240 states have internal predecessors, (330), 68 states have call successors, (68), 4 states have call predecessors, (68), 4 states have return successors, (68), 66 states have call predecessors, (68), 68 states have call successors, (68) [2024-11-16 13:50:48,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 466 transitions. [2024-11-16 13:50:48,582 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 466 transitions. Word has length 176 [2024-11-16 13:50:48,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 13:50:48,583 INFO L471 AbstractCegarLoop]: Abstraction has 311 states and 466 transitions. [2024-11-16 13:50:48,583 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-11-16 13:50:48,583 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 466 transitions. [2024-11-16 13:50:48,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-16 13:50:48,585 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 13:50:48,585 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:50:48,586 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 13:50:48,586 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 13:50:48,586 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 13:50:48,586 INFO L85 PathProgramCache]: Analyzing trace with hash -872784450, now seen corresponding path program 1 times [2024-11-16 13:50:48,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 13:50:48,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217317996] [2024-11-16 13:50:48,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 13:50:48,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 13:50:48,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:49,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 13:50:49,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:49,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 13:50:49,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:49,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 13:50:49,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:49,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 13:50:49,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:49,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 13:50:49,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:49,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 13:50:49,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:49,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 13:50:49,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:49,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 13:50:49,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:49,490 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 13:50:49,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:49,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 13:50:49,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:49,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 13:50:49,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:49,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 13:50:49,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:49,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 13:50:49,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:49,498 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 13:50:49,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:49,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 13:50:49,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:49,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 13:50:49,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:49,505 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-16 13:50:49,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:49,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-16 13:50:49,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:49,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-16 13:50:49,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:49,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-16 13:50:49,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:49,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-16 13:50:49,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:49,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-11-16 13:50:49,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:49,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-11-16 13:50:49,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:49,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-11-16 13:50:49,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:49,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-16 13:50:49,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:49,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-11-16 13:50:49,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:49,531 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-11-16 13:50:49,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 13:50:49,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217317996] [2024-11-16 13:50:49,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217317996] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 13:50:49,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 13:50:49,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 13:50:49,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155654380] [2024-11-16 13:50:49,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 13:50:49,534 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 13:50:49,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 13:50:49,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 13:50:49,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 13:50:49,536 INFO L87 Difference]: Start difference. First operand 311 states and 466 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 2 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2024-11-16 13:50:50,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 13:50:50,305 INFO L93 Difference]: Finished difference Result 788 states and 1170 transitions. [2024-11-16 13:50:50,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 13:50:50,306 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 2 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 176 [2024-11-16 13:50:50,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 13:50:50,309 INFO L225 Difference]: With dead ends: 788 [2024-11-16 13:50:50,309 INFO L226 Difference]: Without dead ends: 480 [2024-11-16 13:50:50,310 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-16 13:50:50,311 INFO L432 NwaCegarLoop]: 151 mSDtfsCounter, 252 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 316 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 252 SdHoareTripleChecker+Valid, 331 SdHoareTripleChecker+Invalid, 365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 13:50:50,311 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [252 Valid, 331 Invalid, 365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 316 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 13:50:50,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2024-11-16 13:50:50,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 243. [2024-11-16 13:50:50,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 178 states have (on average 1.3595505617977528) internal successors, (242), 179 states have internal predecessors, (242), 60 states have call successors, (60), 4 states have call predecessors, (60), 4 states have return successors, (60), 59 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-16 13:50:50,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 362 transitions. [2024-11-16 13:50:50,358 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 362 transitions. Word has length 176 [2024-11-16 13:50:50,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 13:50:50,359 INFO L471 AbstractCegarLoop]: Abstraction has 243 states and 362 transitions. [2024-11-16 13:50:50,359 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 2 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2024-11-16 13:50:50,359 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 362 transitions. [2024-11-16 13:50:50,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-16 13:50:50,361 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 13:50:50,361 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:50:50,361 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 13:50:50,361 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 13:50:50,361 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 13:50:50,361 INFO L85 PathProgramCache]: Analyzing trace with hash -1069297955, now seen corresponding path program 1 times [2024-11-16 13:50:50,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 13:50:50,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816335547] [2024-11-16 13:50:50,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 13:50:50,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 13:50:50,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:52,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 13:50:52,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:52,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 13:50:52,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:52,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 13:50:52,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:52,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 13:50:52,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:52,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 13:50:52,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:52,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 13:50:52,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:52,125 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 13:50:52,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:52,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 13:50:52,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:52,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 13:50:52,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:52,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 13:50:52,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:52,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 13:50:52,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:52,132 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 13:50:52,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:52,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 13:50:52,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:52,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 13:50:52,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:52,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 13:50:52,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:52,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 13:50:52,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:52,139 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-16 13:50:52,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:52,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-16 13:50:52,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:52,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-16 13:50:52,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:52,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-16 13:50:52,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:52,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-16 13:50:52,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:52,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-11-16 13:50:52,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:52,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-11-16 13:50:52,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:52,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-11-16 13:50:52,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:52,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-16 13:50:52,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:52,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-11-16 13:50:52,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:50:52,156 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-11-16 13:50:52,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 13:50:52,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816335547] [2024-11-16 13:50:52,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816335547] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 13:50:52,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 13:50:52,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 13:50:52,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099477949] [2024-11-16 13:50:52,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 13:50:52,157 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 13:50:52,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 13:50:52,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 13:50:52,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-16 13:50:52,158 INFO L87 Difference]: Start difference. First operand 243 states and 362 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-11-16 13:50:52,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 13:50:52,694 INFO L93 Difference]: Finished difference Result 629 states and 929 transitions. [2024-11-16 13:50:52,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 13:50:52,694 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 176 [2024-11-16 13:50:52,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 13:50:52,699 INFO L225 Difference]: With dead ends: 629 [2024-11-16 13:50:52,699 INFO L226 Difference]: Without dead ends: 403 [2024-11-16 13:50:52,700 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-16 13:50:52,701 INFO L432 NwaCegarLoop]: 196 mSDtfsCounter, 135 mSDsluCounter, 352 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 548 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 13:50:52,705 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 548 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 13:50:52,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2024-11-16 13:50:52,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 243. [2024-11-16 13:50:52,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 178 states have (on average 1.3595505617977528) internal successors, (242), 179 states have internal predecessors, (242), 60 states have call successors, (60), 4 states have call predecessors, (60), 4 states have return successors, (60), 59 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-16 13:50:52,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 362 transitions. [2024-11-16 13:50:52,749 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 362 transitions. Word has length 176 [2024-11-16 13:50:52,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 13:50:52,749 INFO L471 AbstractCegarLoop]: Abstraction has 243 states and 362 transitions. [2024-11-16 13:50:52,750 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-11-16 13:50:52,750 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 362 transitions. [2024-11-16 13:50:52,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-16 13:50:52,751 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 13:50:52,751 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:50:52,752 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 13:50:52,752 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 13:50:52,752 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 13:50:52,752 INFO L85 PathProgramCache]: Analyzing trace with hash 1805352891, now seen corresponding path program 1 times [2024-11-16 13:50:52,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 13:50:52,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558495505] [2024-11-16 13:50:52,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 13:50:52,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 13:50:52,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:51:00,108 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 13:51:00,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:51:00,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 13:51:00,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:51:00,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 13:51:00,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:51:00,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 13:51:00,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:51:00,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 13:51:00,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:51:00,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 13:51:00,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:51:00,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 13:51:00,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:51:00,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 13:51:00,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:51:00,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 13:51:00,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:51:00,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 13:51:00,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:51:00,125 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 13:51:00,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:51:00,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 13:51:00,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:51:00,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 13:51:00,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:51:00,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 13:51:00,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:51:00,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 13:51:00,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:51:00,132 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 13:51:00,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:51:00,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-16 13:51:00,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:51:00,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-16 13:51:00,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:51:00,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-16 13:51:00,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:51:00,139 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-16 13:51:00,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:51:00,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-16 13:51:00,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:51:00,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-11-16 13:51:00,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:51:00,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-11-16 13:51:00,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:51:00,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-11-16 13:51:00,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:51:00,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-16 13:51:00,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:51:00,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-11-16 13:51:00,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:51:00,150 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-11-16 13:51:00,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 13:51:00,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558495505] [2024-11-16 13:51:00,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558495505] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 13:51:00,151 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 13:51:00,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 13:51:00,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069673725] [2024-11-16 13:51:00,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 13:51:00,152 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 13:51:00,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 13:51:00,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 13:51:00,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-16 13:51:00,155 INFO L87 Difference]: Start difference. First operand 243 states and 362 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-11-16 13:51:01,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 13:51:01,026 INFO L93 Difference]: Finished difference Result 643 states and 945 transitions. [2024-11-16 13:51:01,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 13:51:01,027 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 176 [2024-11-16 13:51:01,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 13:51:01,034 INFO L225 Difference]: With dead ends: 643 [2024-11-16 13:51:01,034 INFO L226 Difference]: Without dead ends: 417 [2024-11-16 13:51:01,035 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-16 13:51:01,036 INFO L432 NwaCegarLoop]: 197 mSDtfsCounter, 143 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 455 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-16 13:51:01,036 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 455 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-16 13:51:01,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2024-11-16 13:51:01,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 337. [2024-11-16 13:51:01,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 248 states have (on average 1.346774193548387) internal successors, (334), 251 states have internal predecessors, (334), 80 states have call successors, (80), 8 states have call predecessors, (80), 8 states have return successors, (80), 77 states have call predecessors, (80), 80 states have call successors, (80) [2024-11-16 13:51:01,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 494 transitions. [2024-11-16 13:51:01,129 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 494 transitions. Word has length 176 [2024-11-16 13:51:01,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 13:51:01,130 INFO L471 AbstractCegarLoop]: Abstraction has 337 states and 494 transitions. [2024-11-16 13:51:01,130 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-11-16 13:51:01,130 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 494 transitions. [2024-11-16 13:51:01,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-16 13:51:01,132 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 13:51:01,132 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:51:01,132 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 13:51:01,132 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 13:51:01,133 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 13:51:01,136 INFO L85 PathProgramCache]: Analyzing trace with hash -1136304708, now seen corresponding path program 1 times [2024-11-16 13:51:01,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 13:51:01,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793789628] [2024-11-16 13:51:01,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 13:51:01,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 13:51:01,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:51:02,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 13:51:02,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:51:02,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 13:51:02,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:51:02,139 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 13:51:02,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:51:02,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 13:51:02,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:51:02,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 13:51:02,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:51:02,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 13:51:02,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:51:02,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 13:51:02,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:51:02,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 13:51:02,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:51:02,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 13:51:02,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:51:02,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 13:51:02,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:51:02,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 13:51:02,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:51:02,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 13:51:02,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:51:02,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 13:51:02,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:51:02,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 13:51:02,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:51:02,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 13:51:02,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:51:02,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 13:51:02,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:51:02,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-16 13:51:02,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:51:02,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-16 13:51:02,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:51:02,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-16 13:51:02,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:51:02,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-16 13:51:02,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:51:02,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-16 13:51:02,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:51:02,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-11-16 13:51:02,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:51:02,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-11-16 13:51:02,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:51:02,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-11-16 13:51:02,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:51:02,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-16 13:51:02,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:51:02,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-11-16 13:51:02,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 13:51:02,172 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-11-16 13:51:02,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 13:51:02,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793789628] [2024-11-16 13:51:02,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793789628] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 13:51:02,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 13:51:02,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 13:51:02,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329900690] [2024-11-16 13:51:02,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 13:51:02,174 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 13:51:02,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 13:51:02,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 13:51:02,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-16 13:51:02,175 INFO L87 Difference]: Start difference. First operand 337 states and 494 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-11-16 13:51:02,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 13:51:02,587 INFO L93 Difference]: Finished difference Result 730 states and 1064 transitions. [2024-11-16 13:51:02,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 13:51:02,588 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 176 [2024-11-16 13:51:02,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 13:51:02,591 INFO L225 Difference]: With dead ends: 730 [2024-11-16 13:51:02,591 INFO L226 Difference]: Without dead ends: 410 [2024-11-16 13:51:02,593 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-16 13:51:02,594 INFO L432 NwaCegarLoop]: 223 mSDtfsCounter, 158 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 373 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 13:51:02,594 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 373 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 13:51:02,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2024-11-16 13:51:02,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 320. [2024-11-16 13:51:02,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 320 states, 231 states have (on average 1.3376623376623376) internal successors, (309), 234 states have internal predecessors, (309), 80 states have call successors, (80), 8 states have call predecessors, (80), 8 states have return successors, (80), 77 states have call predecessors, (80), 80 states have call successors, (80) [2024-11-16 13:51:02,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 469 transitions. [2024-11-16 13:51:02,664 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 469 transitions. Word has length 176 [2024-11-16 13:51:02,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 13:51:02,664 INFO L471 AbstractCegarLoop]: Abstraction has 320 states and 469 transitions. [2024-11-16 13:51:02,665 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-11-16 13:51:02,665 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 469 transitions. [2024-11-16 13:51:02,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-11-16 13:51:02,666 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 13:51:02,666 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:51:02,666 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 13:51:02,667 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 13:51:02,667 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 13:51:02,667 INFO L85 PathProgramCache]: Analyzing trace with hash 1213909897, now seen corresponding path program 1 times [2024-11-16 13:51:02,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 13:51:02,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951993240] [2024-11-16 13:51:02,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 13:51:02,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 13:51:02,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat