./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-52.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-52.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 b4834357d23aac5c2a51d001b1c25f4722c265308db77262bd19157b1e0789ed --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 07:29:07,122 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 07:29:07,199 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-24 07:29:07,209 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 07:29:07,210 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 07:29:07,240 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 07:29:07,240 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 07:29:07,240 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 07:29:07,242 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 07:29:07,246 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 07:29:07,246 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 07:29:07,247 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 07:29:07,247 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 07:29:07,247 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 07:29:07,248 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 07:29:07,248 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 07:29:07,248 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 07:29:07,248 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 07:29:07,249 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 07:29:07,249 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 07:29:07,249 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 07:29:07,251 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 07:29:07,251 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 07:29:07,251 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 07:29:07,251 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 07:29:07,252 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 07:29:07,252 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 07:29:07,252 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 07:29:07,252 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 07:29:07,253 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 07:29:07,253 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 07:29:07,253 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 07:29:07,253 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 07:29:07,254 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 07:29:07,254 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 07:29:07,254 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 07:29:07,255 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 07:29:07,255 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 07:29:07,255 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 07:29:07,255 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 07:29:07,256 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 07:29:07,256 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 07:29:07,256 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b4834357d23aac5c2a51d001b1c25f4722c265308db77262bd19157b1e0789ed [2024-10-24 07:29:07,532 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 07:29:07,566 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 07:29:07,571 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 07:29:07,573 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 07:29:07,573 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 07:29:07,575 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-52.i [2024-10-24 07:29:09,013 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 07:29:09,259 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 07:29:09,260 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-52.i [2024-10-24 07:29:09,277 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3221ed1ad/b5bafd041875449ab940470472c15a2f/FLAGb36ac2e43 [2024-10-24 07:29:09,592 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3221ed1ad/b5bafd041875449ab940470472c15a2f [2024-10-24 07:29:09,594 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 07:29:09,596 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 07:29:09,597 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 07:29:09,598 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 07:29:09,602 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 07:29:09,603 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 07:29:09" (1/1) ... [2024-10-24 07:29:09,604 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54ee71d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:29:09, skipping insertion in model container [2024-10-24 07:29:09,605 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 07:29:09" (1/1) ... [2024-10-24 07:29:09,639 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 07:29:09,830 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-52.i[919,932] [2024-10-24 07:29:10,002 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 07:29:10,017 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 07:29:10,033 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-52.i[919,932] [2024-10-24 07:29:10,061 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 07:29:10,102 INFO L204 MainTranslator]: Completed translation [2024-10-24 07:29:10,102 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:29:10 WrapperNode [2024-10-24 07:29:10,103 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 07:29:10,104 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 07:29:10,104 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 07:29:10,104 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 07:29:10,112 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:29:10" (1/1) ... [2024-10-24 07:29:10,124 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:29:10" (1/1) ... [2024-10-24 07:29:10,163 INFO L138 Inliner]: procedures = 26, calls = 30, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 193 [2024-10-24 07:29:10,163 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 07:29:10,164 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 07:29:10,164 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 07:29:10,164 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 07:29:10,173 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:29:10" (1/1) ... [2024-10-24 07:29:10,174 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:29:10" (1/1) ... [2024-10-24 07:29:10,177 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:29:10" (1/1) ... [2024-10-24 07:29:10,199 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-24 07:29:10,199 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:29:10" (1/1) ... [2024-10-24 07:29:10,200 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:29:10" (1/1) ... [2024-10-24 07:29:10,212 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:29:10" (1/1) ... [2024-10-24 07:29:10,218 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:29:10" (1/1) ... [2024-10-24 07:29:10,225 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:29:10" (1/1) ... [2024-10-24 07:29:10,227 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:29:10" (1/1) ... [2024-10-24 07:29:10,236 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 07:29:10,240 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 07:29:10,240 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 07:29:10,241 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 07:29:10,242 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:29:10" (1/1) ... [2024-10-24 07:29:10,248 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 07:29:10,260 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 07:29:10,284 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-24 07:29:10,290 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-24 07:29:10,341 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 07:29:10,342 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-24 07:29:10,343 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-24 07:29:10,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 07:29:10,343 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 07:29:10,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 07:29:10,432 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 07:29:10,434 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 07:29:10,845 INFO L? ?]: Removed 22 outVars from TransFormulas that were not future-live. [2024-10-24 07:29:10,845 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 07:29:10,907 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 07:29:10,909 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-24 07:29:10,910 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 07:29:10 BoogieIcfgContainer [2024-10-24 07:29:10,910 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 07:29:10,912 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 07:29:10,913 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 07:29:10,916 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 07:29:10,918 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 07:29:09" (1/3) ... [2024-10-24 07:29:10,920 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@455f48d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 07:29:10, skipping insertion in model container [2024-10-24 07:29:10,920 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:29:10" (2/3) ... [2024-10-24 07:29:10,921 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@455f48d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 07:29:10, skipping insertion in model container [2024-10-24 07:29:10,921 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 07:29:10" (3/3) ... [2024-10-24 07:29:10,922 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pr-ci_file-52.i [2024-10-24 07:29:10,938 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 07:29:10,938 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-24 07:29:11,002 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 07:29:11,009 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;@60802973, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 07:29:11,010 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-24 07:29:11,014 INFO L276 IsEmpty]: Start isEmpty. Operand has 73 states, 53 states have (on average 1.5471698113207548) internal successors, (82), 54 states have internal predecessors, (82), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-10-24 07:29:11,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-10-24 07:29:11,032 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 07:29:11,034 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 07:29:11,034 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 07:29:11,041 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 07:29:11,042 INFO L85 PathProgramCache]: Analyzing trace with hash 758583800, now seen corresponding path program 1 times [2024-10-24 07:29:11,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 07:29:11,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486275023] [2024-10-24 07:29:11,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 07:29:11,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 07:29:11,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:11,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 07:29:11,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:11,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 07:29:11,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:11,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 07:29:11,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:11,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 07:29:11,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:11,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 07:29:11,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:11,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 07:29:11,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:11,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 07:29:11,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:11,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 07:29:11,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:11,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 07:29:11,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:11,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 07:29:11,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:11,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 07:29:11,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:11,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 07:29:11,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:11,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 07:29:11,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:11,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 07:29:11,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:11,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 07:29:11,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:11,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 07:29:11,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:11,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-24 07:29:11,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:11,541 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-24 07:29:11,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 07:29:11,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486275023] [2024-10-24 07:29:11,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486275023] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 07:29:11,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 07:29:11,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 07:29:11,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897673060] [2024-10-24 07:29:11,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 07:29:11,556 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-24 07:29:11,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 07:29:11,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-24 07:29:11,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 07:29:11,590 INFO L87 Difference]: Start difference. First operand has 73 states, 53 states have (on average 1.5471698113207548) internal successors, (82), 54 states have internal predecessors, (82), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 2 states, 2 states have (on average 19.0) internal successors, (38), 2 states have internal predecessors, (38), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-24 07:29:11,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 07:29:11,642 INFO L93 Difference]: Finished difference Result 143 states and 247 transitions. [2024-10-24 07:29:11,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-24 07:29:11,647 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 19.0) internal successors, (38), 2 states have internal predecessors, (38), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 120 [2024-10-24 07:29:11,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 07:29:11,654 INFO L225 Difference]: With dead ends: 143 [2024-10-24 07:29:11,655 INFO L226 Difference]: Without dead ends: 71 [2024-10-24 07:29:11,658 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 07:29:11,661 INFO L432 NwaCegarLoop]: 108 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 07:29:11,664 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 108 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 07:29:11,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2024-10-24 07:29:11,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2024-10-24 07:29:11,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 52 states have (on average 1.4807692307692308) internal successors, (77), 52 states have internal predecessors, (77), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-10-24 07:29:11,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 111 transitions. [2024-10-24 07:29:11,712 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 111 transitions. Word has length 120 [2024-10-24 07:29:11,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 07:29:11,714 INFO L471 AbstractCegarLoop]: Abstraction has 71 states and 111 transitions. [2024-10-24 07:29:11,714 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 19.0) internal successors, (38), 2 states have internal predecessors, (38), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-24 07:29:11,714 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 111 transitions. [2024-10-24 07:29:11,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-10-24 07:29:11,719 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 07:29:11,720 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 07:29:11,720 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 07:29:11,720 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 07:29:11,721 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 07:29:11,721 INFO L85 PathProgramCache]: Analyzing trace with hash 1849574206, now seen corresponding path program 1 times [2024-10-24 07:29:11,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 07:29:11,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465647831] [2024-10-24 07:29:11,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 07:29:11,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 07:29:11,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:12,087 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 07:29:12,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:12,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 07:29:12,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:12,097 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 07:29:12,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:12,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 07:29:12,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:12,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 07:29:12,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:12,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 07:29:12,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:12,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 07:29:12,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:12,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 07:29:12,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:12,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 07:29:12,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:12,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 07:29:12,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:12,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 07:29:12,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:12,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 07:29:12,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:12,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 07:29:12,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:12,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 07:29:12,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:12,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 07:29:12,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:12,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 07:29:12,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:12,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-24 07:29:12,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:12,171 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-24 07:29:12,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 07:29:12,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465647831] [2024-10-24 07:29:12,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [465647831] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 07:29:12,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 07:29:12,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 07:29:12,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791027517] [2024-10-24 07:29:12,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 07:29:12,179 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 07:29:12,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 07:29:12,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 07:29:12,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 07:29:12,182 INFO L87 Difference]: Start difference. First operand 71 states and 111 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-24 07:29:12,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 07:29:12,314 INFO L93 Difference]: Finished difference Result 173 states and 273 transitions. [2024-10-24 07:29:12,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 07:29:12,315 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 120 [2024-10-24 07:29:12,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 07:29:12,319 INFO L225 Difference]: With dead ends: 173 [2024-10-24 07:29:12,321 INFO L226 Difference]: Without dead ends: 103 [2024-10-24 07:29:12,322 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 07:29:12,323 INFO L432 NwaCegarLoop]: 90 mSDtfsCounter, 37 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 07:29:12,325 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 173 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 07:29:12,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2024-10-24 07:29:12,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 92. [2024-10-24 07:29:12,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 73 states have (on average 1.547945205479452) internal successors, (113), 73 states have internal predecessors, (113), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-10-24 07:29:12,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 147 transitions. [2024-10-24 07:29:12,339 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 147 transitions. Word has length 120 [2024-10-24 07:29:12,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 07:29:12,341 INFO L471 AbstractCegarLoop]: Abstraction has 92 states and 147 transitions. [2024-10-24 07:29:12,341 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-24 07:29:12,342 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 147 transitions. [2024-10-24 07:29:12,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-10-24 07:29:12,344 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 07:29:12,344 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 07:29:12,344 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 07:29:12,344 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 07:29:12,345 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 07:29:12,345 INFO L85 PathProgramCache]: Analyzing trace with hash -1202735406, now seen corresponding path program 1 times [2024-10-24 07:29:12,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 07:29:12,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644413845] [2024-10-24 07:29:12,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 07:29:12,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 07:29:12,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:12,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 07:29:12,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:12,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 07:29:12,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:12,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 07:29:12,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:12,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 07:29:12,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:12,620 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 07:29:12,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:12,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 07:29:12,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:12,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 07:29:12,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:12,634 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 07:29:12,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:12,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 07:29:12,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:12,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 07:29:12,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:12,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 07:29:12,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:12,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 07:29:12,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:12,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 07:29:12,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:12,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 07:29:12,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:12,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 07:29:12,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:12,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 07:29:12,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:12,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-24 07:29:12,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:12,717 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-24 07:29:12,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 07:29:12,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644413845] [2024-10-24 07:29:12,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644413845] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 07:29:12,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 07:29:12,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 07:29:12,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392169276] [2024-10-24 07:29:12,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 07:29:12,723 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 07:29:12,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 07:29:12,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 07:29:12,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 07:29:12,724 INFO L87 Difference]: Start difference. First operand 92 states and 147 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-24 07:29:12,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 07:29:12,916 INFO L93 Difference]: Finished difference Result 162 states and 257 transitions. [2024-10-24 07:29:12,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 07:29:12,917 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 121 [2024-10-24 07:29:12,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 07:29:12,918 INFO L225 Difference]: With dead ends: 162 [2024-10-24 07:29:12,918 INFO L226 Difference]: Without dead ends: 71 [2024-10-24 07:29:12,919 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-24 07:29:12,920 INFO L432 NwaCegarLoop]: 88 mSDtfsCounter, 135 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 07:29:12,920 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 141 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 07:29:12,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2024-10-24 07:29:12,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2024-10-24 07:29:12,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 52 states have (on average 1.4230769230769231) internal successors, (74), 52 states have internal predecessors, (74), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-10-24 07:29:12,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 108 transitions. [2024-10-24 07:29:12,935 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 108 transitions. Word has length 121 [2024-10-24 07:29:12,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 07:29:12,937 INFO L471 AbstractCegarLoop]: Abstraction has 71 states and 108 transitions. [2024-10-24 07:29:12,938 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-24 07:29:12,938 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 108 transitions. [2024-10-24 07:29:12,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-10-24 07:29:12,939 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 07:29:12,939 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 07:29:12,940 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 07:29:12,940 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 07:29:12,942 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 07:29:12,942 INFO L85 PathProgramCache]: Analyzing trace with hash -1110424568, now seen corresponding path program 1 times [2024-10-24 07:29:12,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 07:29:12,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353825498] [2024-10-24 07:29:12,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 07:29:12,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 07:29:12,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:13,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 07:29:13,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:13,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 07:29:13,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:13,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 07:29:13,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:13,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 07:29:13,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:13,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 07:29:13,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:13,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 07:29:13,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:13,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 07:29:13,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:13,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 07:29:13,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:13,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 07:29:13,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:13,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 07:29:13,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:13,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 07:29:13,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:13,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 07:29:13,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:13,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 07:29:13,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:13,395 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 07:29:13,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:13,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 07:29:13,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:13,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 07:29:13,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:13,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-24 07:29:13,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:13,414 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-24 07:29:13,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 07:29:13,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353825498] [2024-10-24 07:29:13,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1353825498] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 07:29:13,415 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 07:29:13,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 07:29:13,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046905997] [2024-10-24 07:29:13,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 07:29:13,417 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 07:29:13,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 07:29:13,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 07:29:13,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 07:29:13,419 INFO L87 Difference]: Start difference. First operand 71 states and 108 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-24 07:29:13,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 07:29:13,550 INFO L93 Difference]: Finished difference Result 153 states and 231 transitions. [2024-10-24 07:29:13,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 07:29:13,551 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 121 [2024-10-24 07:29:13,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 07:29:13,556 INFO L225 Difference]: With dead ends: 153 [2024-10-24 07:29:13,556 INFO L226 Difference]: Without dead ends: 83 [2024-10-24 07:29:13,557 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-24 07:29:13,559 INFO L432 NwaCegarLoop]: 91 mSDtfsCounter, 54 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 07:29:13,559 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 214 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 07:29:13,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2024-10-24 07:29:13,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 82. [2024-10-24 07:29:13,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 58 states have (on average 1.3793103448275863) internal successors, (80), 59 states have internal predecessors, (80), 21 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 20 states have call predecessors, (21), 21 states have call successors, (21) [2024-10-24 07:29:13,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 122 transitions. [2024-10-24 07:29:13,582 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 122 transitions. Word has length 121 [2024-10-24 07:29:13,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 07:29:13,584 INFO L471 AbstractCegarLoop]: Abstraction has 82 states and 122 transitions. [2024-10-24 07:29:13,584 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-24 07:29:13,584 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 122 transitions. [2024-10-24 07:29:13,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-10-24 07:29:13,590 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 07:29:13,590 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 07:29:13,591 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 07:29:13,591 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 07:29:13,591 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 07:29:13,591 INFO L85 PathProgramCache]: Analyzing trace with hash -1110364986, now seen corresponding path program 1 times [2024-10-24 07:29:13,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 07:29:13,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619644163] [2024-10-24 07:29:13,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 07:29:13,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 07:29:13,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:14,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 07:29:14,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:14,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 07:29:14,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:14,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 07:29:14,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:14,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 07:29:14,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:14,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 07:29:14,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:14,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 07:29:14,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:14,582 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 07:29:14,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:14,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 07:29:14,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:14,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 07:29:14,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:14,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 07:29:14,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:14,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 07:29:14,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:14,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 07:29:14,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:14,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 07:29:14,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:14,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 07:29:14,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:14,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 07:29:14,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:14,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 07:29:14,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:14,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-24 07:29:14,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:14,663 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-24 07:29:14,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 07:29:14,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619644163] [2024-10-24 07:29:14,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1619644163] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 07:29:14,665 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 07:29:14,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 07:29:14,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754293559] [2024-10-24 07:29:14,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 07:29:14,666 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 07:29:14,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 07:29:14,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 07:29:14,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 07:29:14,668 INFO L87 Difference]: Start difference. First operand 82 states and 122 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-24 07:29:14,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 07:29:14,970 INFO L93 Difference]: Finished difference Result 260 states and 384 transitions. [2024-10-24 07:29:14,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 07:29:14,971 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 121 [2024-10-24 07:29:14,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 07:29:14,973 INFO L225 Difference]: With dead ends: 260 [2024-10-24 07:29:14,973 INFO L226 Difference]: Without dead ends: 185 [2024-10-24 07:29:14,974 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-24 07:29:14,979 INFO L432 NwaCegarLoop]: 144 mSDtfsCounter, 165 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 374 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 07:29:14,979 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 374 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 07:29:14,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2024-10-24 07:29:15,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 180. [2024-10-24 07:29:15,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 123 states have (on average 1.3414634146341464) internal successors, (165), 124 states have internal predecessors, (165), 51 states have call successors, (51), 5 states have call predecessors, (51), 5 states have return successors, (51), 50 states have call predecessors, (51), 51 states have call successors, (51) [2024-10-24 07:29:15,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 267 transitions. [2024-10-24 07:29:15,017 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 267 transitions. Word has length 121 [2024-10-24 07:29:15,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 07:29:15,018 INFO L471 AbstractCegarLoop]: Abstraction has 180 states and 267 transitions. [2024-10-24 07:29:15,018 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-24 07:29:15,018 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 267 transitions. [2024-10-24 07:29:15,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-10-24 07:29:15,020 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 07:29:15,020 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 07:29:15,020 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 07:29:15,020 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 07:29:15,021 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 07:29:15,021 INFO L85 PathProgramCache]: Analyzing trace with hash 606171171, now seen corresponding path program 1 times [2024-10-24 07:29:15,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 07:29:15,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402181316] [2024-10-24 07:29:15,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 07:29:15,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 07:29:15,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:26,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 07:29:26,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:26,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 07:29:26,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:26,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 07:29:26,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:26,355 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 07:29:26,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:26,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 07:29:26,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:26,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 07:29:26,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:26,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 07:29:26,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:26,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 07:29:26,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:26,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 07:29:26,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:26,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 07:29:26,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:26,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 07:29:26,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:26,498 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 07:29:26,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:26,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 07:29:26,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:26,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 07:29:26,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:26,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 07:29:26,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:26,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 07:29:26,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:26,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-24 07:29:26,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:26,646 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-24 07:29:26,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 07:29:26,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402181316] [2024-10-24 07:29:26,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [402181316] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 07:29:26,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 07:29:26,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-10-24 07:29:26,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231475451] [2024-10-24 07:29:26,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 07:29:26,649 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-24 07:29:26,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 07:29:26,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-24 07:29:26,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2024-10-24 07:29:26,651 INFO L87 Difference]: Start difference. First operand 180 states and 267 transitions. Second operand has 15 states, 15 states have (on average 2.7333333333333334) internal successors, (41), 15 states have internal predecessors, (41), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-10-24 07:29:30,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 07:29:30,576 INFO L93 Difference]: Finished difference Result 502 states and 739 transitions. [2024-10-24 07:29:30,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 07:29:30,577 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.7333333333333334) internal successors, (41), 15 states have internal predecessors, (41), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 123 [2024-10-24 07:29:30,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 07:29:30,583 INFO L225 Difference]: With dead ends: 502 [2024-10-24 07:29:30,585 INFO L226 Difference]: Without dead ends: 354 [2024-10-24 07:29:30,586 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=188, Invalid=514, Unknown=0, NotChecked=0, Total=702 [2024-10-24 07:29:30,587 INFO L432 NwaCegarLoop]: 68 mSDtfsCounter, 1234 mSDsluCounter, 354 mSDsCounter, 0 mSdLazyCounter, 769 mSolverCounterSat, 128 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1234 SdHoareTripleChecker+Valid, 422 SdHoareTripleChecker+Invalid, 897 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 128 IncrementalHoareTripleChecker+Valid, 769 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-10-24 07:29:30,587 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1234 Valid, 422 Invalid, 897 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [128 Valid, 769 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-10-24 07:29:30,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2024-10-24 07:29:30,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 229. [2024-10-24 07:29:30,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 172 states have (on average 1.4069767441860466) internal successors, (242), 172 states have internal predecessors, (242), 51 states have call successors, (51), 5 states have call predecessors, (51), 5 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2024-10-24 07:29:30,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 344 transitions. [2024-10-24 07:29:30,633 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 344 transitions. Word has length 123 [2024-10-24 07:29:30,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 07:29:30,634 INFO L471 AbstractCegarLoop]: Abstraction has 229 states and 344 transitions. [2024-10-24 07:29:30,634 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.7333333333333334) internal successors, (41), 15 states have internal predecessors, (41), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-10-24 07:29:30,634 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 344 transitions. [2024-10-24 07:29:30,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-10-24 07:29:30,637 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 07:29:30,637 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 07:29:30,638 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 07:29:30,638 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 07:29:30,638 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 07:29:30,639 INFO L85 PathProgramCache]: Analyzing trace with hash -673692507, now seen corresponding path program 1 times [2024-10-24 07:29:30,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 07:29:30,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88602944] [2024-10-24 07:29:30,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 07:29:30,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 07:29:30,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:30,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 07:29:30,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:30,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 07:29:30,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:30,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 07:29:30,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:30,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 07:29:30,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:30,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 07:29:30,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:30,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 07:29:30,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:30,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 07:29:30,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:30,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 07:29:30,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:30,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 07:29:30,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:30,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 07:29:30,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:30,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 07:29:30,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:30,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 07:29:30,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:30,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 07:29:30,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:30,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 07:29:30,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:30,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 07:29:30,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:30,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 07:29:30,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:30,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-24 07:29:30,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:30,861 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-24 07:29:30,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 07:29:30,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88602944] [2024-10-24 07:29:30,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [88602944] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 07:29:30,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 07:29:30,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 07:29:30,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129158477] [2024-10-24 07:29:30,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 07:29:30,862 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 07:29:30,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 07:29:30,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 07:29:30,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 07:29:30,863 INFO L87 Difference]: Start difference. First operand 229 states and 344 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-24 07:29:31,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 07:29:31,172 INFO L93 Difference]: Finished difference Result 523 states and 780 transitions. [2024-10-24 07:29:31,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 07:29:31,173 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 123 [2024-10-24 07:29:31,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 07:29:31,178 INFO L225 Difference]: With dead ends: 523 [2024-10-24 07:29:31,178 INFO L226 Difference]: Without dead ends: 375 [2024-10-24 07:29:31,179 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-24 07:29:31,179 INFO L432 NwaCegarLoop]: 207 mSDtfsCounter, 193 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 390 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 07:29:31,180 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [193 Valid, 390 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 07:29:31,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2024-10-24 07:29:31,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 371. [2024-10-24 07:29:31,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 371 states, 276 states have (on average 1.391304347826087) internal successors, (384), 276 states have internal predecessors, (384), 85 states have call successors, (85), 9 states have call predecessors, (85), 9 states have return successors, (85), 85 states have call predecessors, (85), 85 states have call successors, (85) [2024-10-24 07:29:31,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 554 transitions. [2024-10-24 07:29:31,234 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 554 transitions. Word has length 123 [2024-10-24 07:29:31,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 07:29:31,234 INFO L471 AbstractCegarLoop]: Abstraction has 371 states and 554 transitions. [2024-10-24 07:29:31,235 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-24 07:29:31,235 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 554 transitions. [2024-10-24 07:29:31,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-10-24 07:29:31,238 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 07:29:31,238 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 07:29:31,238 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-24 07:29:31,238 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 07:29:31,239 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 07:29:31,239 INFO L85 PathProgramCache]: Analyzing trace with hash 1219964707, now seen corresponding path program 1 times [2024-10-24 07:29:31,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 07:29:31,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008576832] [2024-10-24 07:29:31,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 07:29:31,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 07:29:31,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:31,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 07:29:31,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:31,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 07:29:31,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:31,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 07:29:31,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:31,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 07:29:31,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:31,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 07:29:31,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:31,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 07:29:31,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:31,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 07:29:31,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:31,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 07:29:31,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:31,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 07:29:31,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:31,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 07:29:31,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:31,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 07:29:31,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:31,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 07:29:31,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:31,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 07:29:31,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:31,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 07:29:31,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:31,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 07:29:31,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:31,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 07:29:31,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:31,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-24 07:29:31,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:31,484 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-24 07:29:31,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 07:29:31,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008576832] [2024-10-24 07:29:31,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1008576832] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 07:29:31,485 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 07:29:31,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 07:29:31,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467008661] [2024-10-24 07:29:31,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 07:29:31,486 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 07:29:31,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 07:29:31,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 07:29:31,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-24 07:29:31,487 INFO L87 Difference]: Start difference. First operand 371 states and 554 transitions. Second operand has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-24 07:29:31,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 07:29:31,750 INFO L93 Difference]: Finished difference Result 779 states and 1156 transitions. [2024-10-24 07:29:31,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 07:29:31,750 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 123 [2024-10-24 07:29:31,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 07:29:31,754 INFO L225 Difference]: With dead ends: 779 [2024-10-24 07:29:31,754 INFO L226 Difference]: Without dead ends: 489 [2024-10-24 07:29:31,755 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-24 07:29:31,755 INFO L432 NwaCegarLoop]: 200 mSDtfsCounter, 137 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 430 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 07:29:31,756 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 430 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 07:29:31,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 489 states. [2024-10-24 07:29:31,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 489 to 387. [2024-10-24 07:29:31,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 387 states, 292 states have (on average 1.404109589041096) internal successors, (410), 292 states have internal predecessors, (410), 85 states have call successors, (85), 9 states have call predecessors, (85), 9 states have return successors, (85), 85 states have call predecessors, (85), 85 states have call successors, (85) [2024-10-24 07:29:31,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 580 transitions. [2024-10-24 07:29:31,801 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 580 transitions. Word has length 123 [2024-10-24 07:29:31,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 07:29:31,802 INFO L471 AbstractCegarLoop]: Abstraction has 387 states and 580 transitions. [2024-10-24 07:29:31,802 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-24 07:29:31,802 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 580 transitions. [2024-10-24 07:29:31,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-10-24 07:29:31,804 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 07:29:31,804 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 07:29:31,804 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-24 07:29:31,804 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 07:29:31,804 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 07:29:31,805 INFO L85 PathProgramCache]: Analyzing trace with hash -59898971, now seen corresponding path program 1 times [2024-10-24 07:29:31,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 07:29:31,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250146348] [2024-10-24 07:29:31,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 07:29:31,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 07:29:31,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:31,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 07:29:31,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:31,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 07:29:31,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:31,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 07:29:31,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:31,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 07:29:31,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:31,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 07:29:31,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:31,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 07:29:31,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:31,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 07:29:31,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:31,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 07:29:31,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:31,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 07:29:31,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:31,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 07:29:31,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:31,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 07:29:31,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:31,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 07:29:31,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:31,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 07:29:31,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:31,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 07:29:31,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:31,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 07:29:31,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:31,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 07:29:31,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:31,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-24 07:29:31,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:31,975 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-24 07:29:31,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 07:29:31,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250146348] [2024-10-24 07:29:31,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250146348] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 07:29:31,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 07:29:31,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 07:29:31,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925998757] [2024-10-24 07:29:31,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 07:29:31,976 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 07:29:31,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 07:29:31,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 07:29:31,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 07:29:31,977 INFO L87 Difference]: Start difference. First operand 387 states and 580 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-24 07:29:32,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 07:29:32,177 INFO L93 Difference]: Finished difference Result 729 states and 1089 transitions. [2024-10-24 07:29:32,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 07:29:32,179 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 123 [2024-10-24 07:29:32,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 07:29:32,182 INFO L225 Difference]: With dead ends: 729 [2024-10-24 07:29:32,183 INFO L226 Difference]: Without dead ends: 409 [2024-10-24 07:29:32,184 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-24 07:29:32,185 INFO L432 NwaCegarLoop]: 129 mSDtfsCounter, 227 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 310 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 07:29:32,185 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [227 Valid, 310 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 07:29:32,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2024-10-24 07:29:32,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 254. [2024-10-24 07:29:32,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 254 states, 197 states have (on average 1.4365482233502538) internal successors, (283), 197 states have internal predecessors, (283), 51 states have call successors, (51), 5 states have call predecessors, (51), 5 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2024-10-24 07:29:32,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 385 transitions. [2024-10-24 07:29:32,223 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 385 transitions. Word has length 123 [2024-10-24 07:29:32,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 07:29:32,223 INFO L471 AbstractCegarLoop]: Abstraction has 254 states and 385 transitions. [2024-10-24 07:29:32,223 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-24 07:29:32,224 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 385 transitions. [2024-10-24 07:29:32,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-10-24 07:29:32,225 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 07:29:32,225 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 07:29:32,225 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-24 07:29:32,225 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 07:29:32,225 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 07:29:32,226 INFO L85 PathProgramCache]: Analyzing trace with hash -2036198410, now seen corresponding path program 1 times [2024-10-24 07:29:32,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 07:29:32,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349609632] [2024-10-24 07:29:32,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 07:29:32,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 07:29:32,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:34,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 07:29:34,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:34,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 07:29:34,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:34,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 07:29:34,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:34,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 07:29:34,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:34,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 07:29:34,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:34,800 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 07:29:34,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:34,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 07:29:34,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:34,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 07:29:34,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:34,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 07:29:34,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:34,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 07:29:34,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:34,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 07:29:34,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:34,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 07:29:34,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:34,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 07:29:34,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:34,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 07:29:34,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:34,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 07:29:34,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:34,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 07:29:34,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:34,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-24 07:29:34,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:34,853 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-24 07:29:34,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 07:29:34,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349609632] [2024-10-24 07:29:34,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349609632] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 07:29:34,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 07:29:34,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-24 07:29:34,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330119350] [2024-10-24 07:29:34,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 07:29:34,854 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-24 07:29:34,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 07:29:34,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 07:29:34,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-10-24 07:29:34,855 INFO L87 Difference]: Start difference. First operand 254 states and 385 transitions. Second operand has 8 states, 8 states have (on average 5.25) internal successors, (42), 8 states have internal predecessors, (42), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-24 07:29:35,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 07:29:35,311 INFO L93 Difference]: Finished difference Result 396 states and 588 transitions. [2024-10-24 07:29:35,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 07:29:35,312 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.25) internal successors, (42), 8 states have internal predecessors, (42), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 124 [2024-10-24 07:29:35,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 07:29:35,314 INFO L225 Difference]: With dead ends: 396 [2024-10-24 07:29:35,314 INFO L226 Difference]: Without dead ends: 187 [2024-10-24 07:29:35,314 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-10-24 07:29:35,315 INFO L432 NwaCegarLoop]: 61 mSDtfsCounter, 109 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 07:29:35,315 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 153 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 07:29:35,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2024-10-24 07:29:35,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 174. [2024-10-24 07:29:35,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 117 states have (on average 1.2564102564102564) internal successors, (147), 118 states have internal predecessors, (147), 51 states have call successors, (51), 5 states have call predecessors, (51), 5 states have return successors, (51), 50 states have call predecessors, (51), 51 states have call successors, (51) [2024-10-24 07:29:35,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 249 transitions. [2024-10-24 07:29:35,339 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 249 transitions. Word has length 124 [2024-10-24 07:29:35,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 07:29:35,340 INFO L471 AbstractCegarLoop]: Abstraction has 174 states and 249 transitions. [2024-10-24 07:29:35,340 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.25) internal successors, (42), 8 states have internal predecessors, (42), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-24 07:29:35,340 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 249 transitions. [2024-10-24 07:29:35,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-10-24 07:29:35,341 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 07:29:35,341 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 07:29:35,341 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-24 07:29:35,342 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 07:29:35,342 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 07:29:35,342 INFO L85 PathProgramCache]: Analyzing trace with hash 1362317576, now seen corresponding path program 1 times [2024-10-24 07:29:35,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 07:29:35,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172379224] [2024-10-24 07:29:35,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 07:29:35,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 07:29:35,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:35,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 07:29:35,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:35,559 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 07:29:35,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:35,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 07:29:35,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:35,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 07:29:35,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:35,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 07:29:35,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:35,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 07:29:35,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:35,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 07:29:35,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:35,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 07:29:35,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:35,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 07:29:35,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:35,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 07:29:35,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:35,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 07:29:35,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:35,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 07:29:35,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:35,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 07:29:35,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:35,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 07:29:35,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:35,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 07:29:35,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:35,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 07:29:35,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:35,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-24 07:29:35,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:35,583 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-24 07:29:35,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 07:29:35,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172379224] [2024-10-24 07:29:35,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172379224] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 07:29:35,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 07:29:35,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 07:29:35,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812074613] [2024-10-24 07:29:35,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 07:29:35,584 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 07:29:35,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 07:29:35,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 07:29:35,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-24 07:29:35,585 INFO L87 Difference]: Start difference. First operand 174 states and 249 transitions. Second operand has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 states have internal predecessors, (43), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-24 07:29:35,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 07:29:35,813 INFO L93 Difference]: Finished difference Result 318 states and 452 transitions. [2024-10-24 07:29:35,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 07:29:35,814 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 states have internal predecessors, (43), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 125 [2024-10-24 07:29:35,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 07:29:35,819 INFO L225 Difference]: With dead ends: 318 [2024-10-24 07:29:35,819 INFO L226 Difference]: Without dead ends: 176 [2024-10-24 07:29:35,819 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2024-10-24 07:29:35,820 INFO L432 NwaCegarLoop]: 118 mSDtfsCounter, 111 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 393 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 07:29:35,820 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 393 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 07:29:35,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2024-10-24 07:29:35,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 174. [2024-10-24 07:29:35,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 117 states have (on average 1.2393162393162394) internal successors, (145), 118 states have internal predecessors, (145), 51 states have call successors, (51), 5 states have call predecessors, (51), 5 states have return successors, (51), 50 states have call predecessors, (51), 51 states have call successors, (51) [2024-10-24 07:29:35,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 247 transitions. [2024-10-24 07:29:35,843 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 247 transitions. Word has length 125 [2024-10-24 07:29:35,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 07:29:35,844 INFO L471 AbstractCegarLoop]: Abstraction has 174 states and 247 transitions. [2024-10-24 07:29:35,844 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 states have internal predecessors, (43), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-24 07:29:35,844 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 247 transitions. [2024-10-24 07:29:35,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-10-24 07:29:35,845 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 07:29:35,845 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 07:29:35,845 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-24 07:29:35,845 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 07:29:35,846 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 07:29:35,846 INFO L85 PathProgramCache]: Analyzing trace with hash 1362377158, now seen corresponding path program 1 times [2024-10-24 07:29:35,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 07:29:35,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111548254] [2024-10-24 07:29:35,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 07:29:35,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 07:29:35,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:43,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 07:29:43,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:43,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 07:29:43,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:43,199 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 07:29:43,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:43,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 07:29:43,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:43,211 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 07:29:43,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:43,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 07:29:43,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:43,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 07:29:43,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:43,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 07:29:43,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:43,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 07:29:43,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:43,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 07:29:43,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:43,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 07:29:43,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:43,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 07:29:43,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:43,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 07:29:43,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:43,267 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 07:29:43,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:43,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 07:29:43,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:43,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 07:29:43,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:43,291 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-24 07:29:43,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:43,299 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-24 07:29:43,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 07:29:43,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111548254] [2024-10-24 07:29:43,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111548254] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 07:29:43,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 07:29:43,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-10-24 07:29:43,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665742960] [2024-10-24 07:29:43,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 07:29:43,300 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-10-24 07:29:43,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 07:29:43,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-10-24 07:29:43,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2024-10-24 07:29:43,301 INFO L87 Difference]: Start difference. First operand 174 states and 247 transitions. Second operand has 16 states, 15 states have (on average 2.8666666666666667) internal successors, (43), 16 states have internal predecessors, (43), 4 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) [2024-10-24 07:29:45,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 07:29:45,232 INFO L93 Difference]: Finished difference Result 249 states and 342 transitions. [2024-10-24 07:29:45,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-24 07:29:45,233 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.8666666666666667) internal successors, (43), 16 states have internal predecessors, (43), 4 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) Word has length 125 [2024-10-24 07:29:45,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 07:29:45,235 INFO L225 Difference]: With dead ends: 249 [2024-10-24 07:29:45,235 INFO L226 Difference]: Without dead ends: 247 [2024-10-24 07:29:45,236 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=170, Invalid=480, Unknown=0, NotChecked=0, Total=650 [2024-10-24 07:29:45,236 INFO L432 NwaCegarLoop]: 59 mSDtfsCounter, 334 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 451 mSolverCounterSat, 124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 334 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 575 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 451 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-24 07:29:45,236 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [334 Valid, 328 Invalid, 575 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 451 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-24 07:29:45,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2024-10-24 07:29:45,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 220. [2024-10-24 07:29:45,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 163 states have (on average 1.2576687116564418) internal successors, (205), 163 states have internal predecessors, (205), 51 states have call successors, (51), 5 states have call predecessors, (51), 5 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2024-10-24 07:29:45,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 307 transitions. [2024-10-24 07:29:45,265 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 307 transitions. Word has length 125 [2024-10-24 07:29:45,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 07:29:45,265 INFO L471 AbstractCegarLoop]: Abstraction has 220 states and 307 transitions. [2024-10-24 07:29:45,266 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.8666666666666667) internal successors, (43), 16 states have internal predecessors, (43), 4 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) [2024-10-24 07:29:45,266 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 307 transitions. [2024-10-24 07:29:45,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-10-24 07:29:45,268 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 07:29:45,269 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 07:29:45,269 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-24 07:29:45,269 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 07:29:45,269 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 07:29:45,270 INFO L85 PathProgramCache]: Analyzing trace with hash -1272309140, now seen corresponding path program 1 times [2024-10-24 07:29:45,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 07:29:45,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271430835] [2024-10-24 07:29:45,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 07:29:45,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 07:29:45,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:48,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 07:29:48,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:48,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 07:29:48,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:48,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 07:29:48,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:48,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 07:29:48,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:48,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 07:29:48,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:48,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 07:29:48,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:48,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 07:29:48,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:48,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 07:29:48,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:48,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 07:29:48,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:48,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 07:29:48,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:48,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 07:29:48,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:48,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 07:29:48,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:48,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 07:29:48,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:48,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 07:29:48,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:48,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 07:29:48,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:48,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 07:29:48,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:48,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-24 07:29:48,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:48,893 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-24 07:29:48,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 07:29:48,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271430835] [2024-10-24 07:29:48,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271430835] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 07:29:48,894 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 07:29:48,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-24 07:29:48,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135811281] [2024-10-24 07:29:48,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 07:29:48,895 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-24 07:29:48,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 07:29:48,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-24 07:29:48,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2024-10-24 07:29:48,896 INFO L87 Difference]: Start difference. First operand 220 states and 307 transitions. Second operand has 12 states, 12 states have (on average 3.6666666666666665) internal successors, (44), 12 states have internal predecessors, (44), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-24 07:29:49,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 07:29:49,645 INFO L93 Difference]: Finished difference Result 431 states and 597 transitions. [2024-10-24 07:29:49,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-24 07:29:49,646 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.6666666666666665) internal successors, (44), 12 states have internal predecessors, (44), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 126 [2024-10-24 07:29:49,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 07:29:49,650 INFO L225 Difference]: With dead ends: 431 [2024-10-24 07:29:49,650 INFO L226 Difference]: Without dead ends: 268 [2024-10-24 07:29:49,651 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=150, Invalid=312, Unknown=0, NotChecked=0, Total=462 [2024-10-24 07:29:49,652 INFO L432 NwaCegarLoop]: 65 mSDtfsCounter, 153 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 422 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 422 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 07:29:49,653 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 223 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 422 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 07:29:49,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2024-10-24 07:29:49,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 240. [2024-10-24 07:29:49,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 183 states have (on average 1.2513661202185793) internal successors, (229), 183 states have internal predecessors, (229), 51 states have call successors, (51), 5 states have call predecessors, (51), 5 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2024-10-24 07:29:49,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 331 transitions. [2024-10-24 07:29:49,678 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 331 transitions. Word has length 126 [2024-10-24 07:29:49,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 07:29:49,678 INFO L471 AbstractCegarLoop]: Abstraction has 240 states and 331 transitions. [2024-10-24 07:29:49,678 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.6666666666666665) internal successors, (44), 12 states have internal predecessors, (44), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-24 07:29:49,679 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 331 transitions. [2024-10-24 07:29:49,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2024-10-24 07:29:49,682 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 07:29:49,682 INFO L215 NwaCegarLoop]: trace histogram [34, 34, 34, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 07:29:49,682 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-24 07:29:49,682 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 07:29:49,683 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 07:29:49,683 INFO L85 PathProgramCache]: Analyzing trace with hash -905443201, now seen corresponding path program 1 times [2024-10-24 07:29:49,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 07:29:49,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347970102] [2024-10-24 07:29:49,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 07:29:49,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 07:29:49,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:50,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 07:29:50,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:50,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 07:29:50,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:50,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 07:29:50,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:50,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 07:29:50,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:50,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 07:29:50,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:50,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 07:29:50,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:50,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 07:29:50,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:50,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 07:29:50,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:50,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 07:29:50,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:50,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 07:29:50,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:50,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 07:29:50,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:50,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 07:29:50,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:50,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 07:29:50,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:50,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 07:29:50,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:50,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 07:29:50,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:50,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 07:29:50,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:50,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-24 07:29:50,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:50,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-10-24 07:29:50,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:50,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-10-24 07:29:50,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:50,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-10-24 07:29:50,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:50,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-10-24 07:29:50,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:50,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-10-24 07:29:50,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:50,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-24 07:29:50,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:50,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-10-24 07:29:50,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:50,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-10-24 07:29:50,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:50,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2024-10-24 07:29:50,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:50,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2024-10-24 07:29:50,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:50,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2024-10-24 07:29:50,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:50,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2024-10-24 07:29:50,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:50,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2024-10-24 07:29:50,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:50,715 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2024-10-24 07:29:50,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:50,718 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2024-10-24 07:29:50,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:50,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2024-10-24 07:29:50,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:50,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2024-10-24 07:29:50,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:29:50,728 INFO L134 CoverageAnalysis]: Checked inductivity of 2297 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked. [2024-10-24 07:29:50,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 07:29:50,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347970102] [2024-10-24 07:29:50,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347970102] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 07:29:50,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 07:29:50,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 07:29:50,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342640807] [2024-10-24 07:29:50,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 07:29:50,729 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 07:29:50,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 07:29:50,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 07:29:50,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 07:29:50,730 INFO L87 Difference]: Start difference. First operand 240 states and 331 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2024-10-24 07:29:51,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 07:29:51,040 INFO L93 Difference]: Finished difference Result 361 states and 488 transitions. [2024-10-24 07:29:51,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 07:29:51,041 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 248 [2024-10-24 07:29:51,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 07:29:51,043 INFO L225 Difference]: With dead ends: 361 [2024-10-24 07:29:51,043 INFO L226 Difference]: Without dead ends: 273 [2024-10-24 07:29:51,043 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-10-24 07:29:51,044 INFO L432 NwaCegarLoop]: 161 mSDtfsCounter, 141 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 07:29:51,044 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 232 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 07:29:51,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2024-10-24 07:29:51,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 270. [2024-10-24 07:29:51,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 210 states have (on average 1.2380952380952381) internal successors, (260), 211 states have internal predecessors, (260), 53 states have call successors, (53), 6 states have call predecessors, (53), 6 states have return successors, (53), 52 states have call predecessors, (53), 53 states have call successors, (53) [2024-10-24 07:29:51,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 366 transitions. [2024-10-24 07:29:51,086 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 366 transitions. Word has length 248 [2024-10-24 07:29:51,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 07:29:51,087 INFO L471 AbstractCegarLoop]: Abstraction has 270 states and 366 transitions. [2024-10-24 07:29:51,087 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2024-10-24 07:29:51,087 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 366 transitions. [2024-10-24 07:29:51,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2024-10-24 07:29:51,091 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 07:29:51,091 INFO L215 NwaCegarLoop]: trace histogram [34, 34, 34, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-10-24 07:29:51,091 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-24 07:29:51,091 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 07:29:51,091 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 07:29:51,092 INFO L85 PathProgramCache]: Analyzing trace with hash -940155767, now seen corresponding path program 1 times [2024-10-24 07:29:51,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 07:29:51,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226618576] [2024-10-24 07:29:51,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 07:29:51,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 07:29:51,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:30:02,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 07:30:02,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:30:02,199 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 07:30:02,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:30:02,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 07:30:02,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:30:02,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 07:30:02,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:30:02,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 07:30:02,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:30:02,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 07:30:02,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:30:02,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 07:30:02,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:30:02,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 07:30:02,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:30:02,211 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 07:30:02,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:30:02,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 07:30:02,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:30:02,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 07:30:02,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:30:02,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 07:30:02,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:30:02,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 07:30:02,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:30:02,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 07:30:02,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:30:02,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 07:30:02,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:30:02,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 07:30:02,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:30:02,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-24 07:30:02,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:30:02,228 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-10-24 07:30:02,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:30:02,231 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-10-24 07:30:02,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:30:02,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-10-24 07:30:02,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:30:02,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-10-24 07:30:02,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:30:02,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-24 07:30:02,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:30:02,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-10-24 07:30:02,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:30:02,257 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-10-24 07:30:02,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:30:02,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-10-24 07:30:02,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:30:02,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2024-10-24 07:30:02,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:30:02,299 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-10-24 07:30:02,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:30:02,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-10-24 07:30:02,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:30:02,328 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2024-10-24 07:30:02,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:30:02,342 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2024-10-24 07:30:02,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:30:02,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2024-10-24 07:30:02,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:30:02,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2024-10-24 07:30:02,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:30:02,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2024-10-24 07:30:02,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:30:02,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2024-10-24 07:30:02,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:30:02,421 INFO L134 CoverageAnalysis]: Checked inductivity of 2299 backedges. 1 proven. 54 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked. [2024-10-24 07:30:02,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 07:30:02,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226618576] [2024-10-24 07:30:02,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1226618576] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 07:30:02,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1952639633] [2024-10-24 07:30:02,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 07:30:02,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 07:30:02,422 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 07:30:02,424 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 07:30:02,425 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-24 07:30:02,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:30:02,590 INFO L255 TraceCheckSpWp]: Trace formula consists of 573 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-24 07:30:02,603 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 07:30:02,853 INFO L134 CoverageAnalysis]: Checked inductivity of 2299 backedges. 773 proven. 18 refuted. 0 times theorem prover too weak. 1508 trivial. 0 not checked. [2024-10-24 07:30:02,853 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 07:30:03,157 INFO L134 CoverageAnalysis]: Checked inductivity of 2299 backedges. 119 proven. 18 refuted. 0 times theorem prover too weak. 2162 trivial. 0 not checked. [2024-10-24 07:30:03,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1952639633] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 07:30:03,158 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 07:30:03,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 5, 5] total 21 [2024-10-24 07:30:03,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689360568] [2024-10-24 07:30:03,159 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 07:30:03,159 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-10-24 07:30:03,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 07:30:03,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-10-24 07:30:03,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=366, Unknown=0, NotChecked=0, Total=420 [2024-10-24 07:30:03,164 INFO L87 Difference]: Start difference. First operand 270 states and 366 transitions. Second operand has 21 states, 21 states have (on average 8.619047619047619) internal successors, (181), 21 states have internal predecessors, (181), 6 states have call successors, (63), 2 states have call predecessors, (63), 4 states have return successors, (65), 6 states have call predecessors, (65), 6 states have call successors, (65) [2024-10-24 07:30:07,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 07:30:07,066 INFO L93 Difference]: Finished difference Result 578 states and 754 transitions. [2024-10-24 07:30:07,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-10-24 07:30:07,067 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 8.619047619047619) internal successors, (181), 21 states have internal predecessors, (181), 6 states have call successors, (63), 2 states have call predecessors, (63), 4 states have return successors, (65), 6 states have call predecessors, (65), 6 states have call successors, (65) Word has length 249 [2024-10-24 07:30:07,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 07:30:07,071 INFO L225 Difference]: With dead ends: 578 [2024-10-24 07:30:07,071 INFO L226 Difference]: Without dead ends: 357 [2024-10-24 07:30:07,072 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 617 GetRequests, 569 SyntacticMatches, 2 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 448 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=451, Invalid=1805, Unknown=0, NotChecked=0, Total=2256 [2024-10-24 07:30:07,073 INFO L432 NwaCegarLoop]: 95 mSDtfsCounter, 561 mSDsluCounter, 610 mSDsCounter, 0 mSdLazyCounter, 1720 mSolverCounterSat, 164 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 571 SdHoareTripleChecker+Valid, 705 SdHoareTripleChecker+Invalid, 1884 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 164 IncrementalHoareTripleChecker+Valid, 1720 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-10-24 07:30:07,073 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [571 Valid, 705 Invalid, 1884 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [164 Valid, 1720 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-10-24 07:30:07,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2024-10-24 07:30:07,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 269. [2024-10-24 07:30:07,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 269 states, 206 states have (on average 1.2087378640776698) internal successors, (249), 207 states have internal predecessors, (249), 53 states have call successors, (53), 9 states have call predecessors, (53), 9 states have return successors, (53), 52 states have call predecessors, (53), 53 states have call successors, (53) [2024-10-24 07:30:07,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 355 transitions. [2024-10-24 07:30:07,103 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 355 transitions. Word has length 249 [2024-10-24 07:30:07,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 07:30:07,103 INFO L471 AbstractCegarLoop]: Abstraction has 269 states and 355 transitions. [2024-10-24 07:30:07,104 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 8.619047619047619) internal successors, (181), 21 states have internal predecessors, (181), 6 states have call successors, (63), 2 states have call predecessors, (63), 4 states have return successors, (65), 6 states have call predecessors, (65), 6 states have call successors, (65) [2024-10-24 07:30:07,104 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 355 transitions. [2024-10-24 07:30:07,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2024-10-24 07:30:07,106 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 07:30:07,107 INFO L215 NwaCegarLoop]: trace histogram [34, 34, 34, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 07:30:07,126 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-24 07:30:07,307 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-10-24 07:30:07,308 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 07:30:07,308 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 07:30:07,308 INFO L85 PathProgramCache]: Analyzing trace with hash -1153098363, now seen corresponding path program 1 times [2024-10-24 07:30:07,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 07:30:07,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978925172] [2024-10-24 07:30:07,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 07:30:07,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 07:30:07,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:30:07,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 07:30:07,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:30:07,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 07:30:07,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:30:07,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 07:30:07,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:30:07,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 07:30:07,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:30:07,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 07:30:07,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:30:07,505 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 07:30:07,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:30:07,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 07:30:07,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:30:07,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 07:30:07,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:30:07,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 07:30:07,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:30:07,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 07:30:07,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:30:07,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 07:30:07,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:30:07,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 07:30:07,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:30:07,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 07:30:07,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:30:07,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 07:30:07,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:30:07,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 07:30:07,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:30:07,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 07:30:07,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:30:07,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-24 07:30:07,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:30:07,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-10-24 07:30:07,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:30:07,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-24 07:30:07,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:30:07,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-10-24 07:30:07,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:30:07,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-10-24 07:30:07,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:30:07,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-10-24 07:30:07,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:30:07,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-10-24 07:30:07,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:30:07,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2024-10-24 07:30:07,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:30:07,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-10-24 07:30:07,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:30:07,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-10-24 07:30:07,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:30:07,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-10-24 07:30:07,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:30:07,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2024-10-24 07:30:07,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:30:07,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2024-10-24 07:30:07,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:30:07,547 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2024-10-24 07:30:07,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:30:07,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2024-10-24 07:30:07,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:30:07,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2024-10-24 07:30:07,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:30:07,551 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2024-10-24 07:30:07,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:30:07,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2024-10-24 07:30:07,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:30:07,554 INFO L134 CoverageAnalysis]: Checked inductivity of 2300 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 2258 trivial. 0 not checked. [2024-10-24 07:30:07,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 07:30:07,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978925172] [2024-10-24 07:30:07,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1978925172] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 07:30:07,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 07:30:07,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 07:30:07,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965871579] [2024-10-24 07:30:07,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 07:30:07,556 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 07:30:07,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 07:30:07,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 07:30:07,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 07:30:07,557 INFO L87 Difference]: Start difference. First operand 269 states and 355 transitions. Second operand has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 3 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2024-10-24 07:30:07,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 07:30:07,741 INFO L93 Difference]: Finished difference Result 497 states and 646 transitions. [2024-10-24 07:30:07,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 07:30:07,742 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 3 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) Word has length 253 [2024-10-24 07:30:07,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 07:30:07,744 INFO L225 Difference]: With dead ends: 497 [2024-10-24 07:30:07,745 INFO L226 Difference]: Without dead ends: 281 [2024-10-24 07:30:07,745 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-24 07:30:07,746 INFO L432 NwaCegarLoop]: 100 mSDtfsCounter, 121 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 07:30:07,747 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 172 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 07:30:07,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2024-10-24 07:30:07,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 281. [2024-10-24 07:30:07,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 281 states, 215 states have (on average 1.186046511627907) internal successors, (255), 216 states have internal predecessors, (255), 53 states have call successors, (53), 12 states have call predecessors, (53), 12 states have return successors, (53), 52 states have call predecessors, (53), 53 states have call successors, (53) [2024-10-24 07:30:07,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 361 transitions. [2024-10-24 07:30:07,788 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 361 transitions. Word has length 253 [2024-10-24 07:30:07,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 07:30:07,789 INFO L471 AbstractCegarLoop]: Abstraction has 281 states and 361 transitions. [2024-10-24 07:30:07,789 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 3 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2024-10-24 07:30:07,789 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 361 transitions. [2024-10-24 07:30:07,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2024-10-24 07:30:07,792 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 07:30:07,792 INFO L215 NwaCegarLoop]: trace histogram [34, 34, 34, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 07:30:07,792 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-24 07:30:07,792 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 07:30:07,793 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 07:30:07,793 INFO L85 PathProgramCache]: Analyzing trace with hash 1580371073, now seen corresponding path program 1 times [2024-10-24 07:30:07,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 07:30:07,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675070231] [2024-10-24 07:30:07,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 07:30:07,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 07:30:08,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat