./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_loopvsstraightlinecode_50-1loop_file-81.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_loopvsstraightlinecode_50-1loop_file-81.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 743733c75edc203d6a3698a34f61f0abb7399fbb75a2d96375820580e8166eb4 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 09:52:47,568 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 09:52:47,625 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-24 09:52:47,631 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 09:52:47,631 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 09:52:47,655 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 09:52:47,657 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 09:52:47,657 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 09:52:47,658 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 09:52:47,661 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 09:52:47,661 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 09:52:47,661 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 09:52:47,662 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 09:52:47,662 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 09:52:47,662 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 09:52:47,663 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 09:52:47,664 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 09:52:47,664 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 09:52:47,665 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 09:52:47,665 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 09:52:47,665 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 09:52:47,665 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 09:52:47,666 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 09:52:47,666 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 09:52:47,666 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 09:52:47,666 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 09:52:47,666 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 09:52:47,667 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 09:52:47,667 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 09:52:47,667 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 09:52:47,667 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 09:52:47,667 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 09:52:47,668 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 09:52:47,668 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 09:52:47,668 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 09:52:47,668 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 09:52:47,668 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 09:52:47,668 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 09:52:47,669 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 09:52:47,669 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 09:52:47,669 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 09:52:47,670 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 09:52:47,671 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 743733c75edc203d6a3698a34f61f0abb7399fbb75a2d96375820580e8166eb4 [2024-10-24 09:52:47,883 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 09:52:47,924 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 09:52:47,927 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 09:52:47,929 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 09:52:47,930 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 09:52:47,931 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-81.i [2024-10-24 09:52:49,251 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 09:52:49,435 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 09:52:49,435 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-81.i [2024-10-24 09:52:49,449 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e427361f/16588cefc82947539644f51fea2b6dfe/FLAG2ed46b772 [2024-10-24 09:52:49,809 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e427361f/16588cefc82947539644f51fea2b6dfe [2024-10-24 09:52:49,811 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 09:52:49,812 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 09:52:49,813 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 09:52:49,813 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 09:52:49,818 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 09:52:49,818 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:52:49" (1/1) ... [2024-10-24 09:52:49,819 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55c1d8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:52:49, skipping insertion in model container [2024-10-24 09:52:49,819 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:52:49" (1/1) ... [2024-10-24 09:52:49,841 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 09:52:50,016 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_loopvsstraightlinecode_50-1loop_file-81.i[915,928] [2024-10-24 09:52:50,094 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 09:52:50,102 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 09:52:50,130 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_loopvsstraightlinecode_50-1loop_file-81.i[915,928] [2024-10-24 09:52:50,151 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 09:52:50,178 INFO L204 MainTranslator]: Completed translation [2024-10-24 09:52:50,178 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:52:50 WrapperNode [2024-10-24 09:52:50,179 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 09:52:50,179 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 09:52:50,180 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 09:52:50,180 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 09:52:50,185 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:52:50" (1/1) ... [2024-10-24 09:52:50,193 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:52:50" (1/1) ... [2024-10-24 09:52:50,245 INFO L138 Inliner]: procedures = 26, calls = 39, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 184 [2024-10-24 09:52:50,246 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 09:52:50,246 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 09:52:50,246 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 09:52:50,246 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 09:52:50,255 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:52:50" (1/1) ... [2024-10-24 09:52:50,256 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:52:50" (1/1) ... [2024-10-24 09:52:50,260 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:52:50" (1/1) ... [2024-10-24 09:52:50,276 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-24 09:52:50,277 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:52:50" (1/1) ... [2024-10-24 09:52:50,277 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:52:50" (1/1) ... [2024-10-24 09:52:50,285 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:52:50" (1/1) ... [2024-10-24 09:52:50,288 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:52:50" (1/1) ... [2024-10-24 09:52:50,291 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:52:50" (1/1) ... [2024-10-24 09:52:50,293 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:52:50" (1/1) ... [2024-10-24 09:52:50,299 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 09:52:50,300 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 09:52:50,300 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 09:52:50,300 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 09:52:50,301 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:52:50" (1/1) ... [2024-10-24 09:52:50,306 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 09:52:50,318 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 09:52:50,344 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-24 09:52:50,358 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-24 09:52:50,395 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 09:52:50,395 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-24 09:52:50,396 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-24 09:52:50,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 09:52:50,396 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 09:52:50,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 09:52:50,482 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 09:52:50,484 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 09:52:50,763 INFO L? ?]: Removed 17 outVars from TransFormulas that were not future-live. [2024-10-24 09:52:50,763 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 09:52:50,798 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 09:52:50,800 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-24 09:52:50,801 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:52:50 BoogieIcfgContainer [2024-10-24 09:52:50,801 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 09:52:50,803 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 09:52:50,803 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 09:52:50,806 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 09:52:50,806 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 09:52:49" (1/3) ... [2024-10-24 09:52:50,807 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30ad2fd9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:52:50, skipping insertion in model container [2024-10-24 09:52:50,807 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:52:50" (2/3) ... [2024-10-24 09:52:50,808 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30ad2fd9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:52:50, skipping insertion in model container [2024-10-24 09:52:50,808 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:52:50" (3/3) ... [2024-10-24 09:52:50,809 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_50-1loop_file-81.i [2024-10-24 09:52:50,826 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 09:52:50,826 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-24 09:52:50,875 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 09:52:50,883 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;@2df3611b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 09:52:50,883 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-24 09:52:50,888 INFO L276 IsEmpty]: Start isEmpty. Operand has 71 states, 42 states have (on average 1.4285714285714286) internal successors, (60), 43 states have internal predecessors, (60), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-10-24 09:52:50,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-10-24 09:52:50,898 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 09:52:50,899 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 09:52:50,900 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 09:52:50,903 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 09:52:50,904 INFO L85 PathProgramCache]: Analyzing trace with hash 2043779454, now seen corresponding path program 1 times [2024-10-24 09:52:50,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 09:52:50,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308361834] [2024-10-24 09:52:50,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 09:52:50,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 09:52:51,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:52:51,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 09:52:51,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:52:51,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 09:52:51,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:52:51,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 09:52:51,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:52:51,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 09:52:51,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:52:51,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 09:52:51,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:52:51,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 09:52:51,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:52:51,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 09:52:51,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:52:51,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 09:52:51,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:52:51,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 09:52:51,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:52:51,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 09:52:51,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:52:51,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 09:52:51,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:52:51,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 09:52:51,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:52:51,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 09:52:51,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:52:51,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 09:52:51,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:52:51,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 09:52:51,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:52:51,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 09:52:51,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:52:51,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 09:52:51,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:52:51,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 09:52:51,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:52:51,280 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 09:52:51,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:52:51,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 09:52:51,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:52:51,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-24 09:52:51,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:52:51,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 09:52:51,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:52:51,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-24 09:52:51,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:52:51,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-24 09:52:51,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:52:51,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-24 09:52:51,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:52:51,395 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-24 09:52:51,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:52:51,400 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-10-24 09:52:51,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 09:52:51,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308361834] [2024-10-24 09:52:51,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308361834] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 09:52:51,405 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 09:52:51,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 09:52:51,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558733100] [2024-10-24 09:52:51,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 09:52:51,413 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-24 09:52:51,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 09:52:51,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-24 09:52:51,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 09:52:51,440 INFO L87 Difference]: Start difference. First operand has 71 states, 42 states have (on average 1.4285714285714286) internal successors, (60), 43 states have internal predecessors, (60), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) Second operand has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 2 states have call successors, (26) [2024-10-24 09:52:51,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 09:52:51,488 INFO L93 Difference]: Finished difference Result 141 states and 249 transitions. [2024-10-24 09:52:51,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-24 09:52:51,491 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 2 states have call successors, (26) Word has length 159 [2024-10-24 09:52:51,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 09:52:51,497 INFO L225 Difference]: With dead ends: 141 [2024-10-24 09:52:51,500 INFO L226 Difference]: Without dead ends: 69 [2024-10-24 09:52:51,505 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 09:52:51,510 INFO L432 NwaCegarLoop]: 104 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 09:52:51,510 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 104 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 09:52:51,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2024-10-24 09:52:51,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2024-10-24 09:52:51,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 41 states have (on average 1.3414634146341464) internal successors, (55), 41 states have internal predecessors, (55), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-10-24 09:52:51,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 107 transitions. [2024-10-24 09:52:51,562 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 107 transitions. Word has length 159 [2024-10-24 09:52:51,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 09:52:51,562 INFO L471 AbstractCegarLoop]: Abstraction has 69 states and 107 transitions. [2024-10-24 09:52:51,562 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 2 states have call successors, (26) [2024-10-24 09:52:51,562 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 107 transitions. [2024-10-24 09:52:51,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-10-24 09:52:51,568 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 09:52:51,568 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 09:52:51,569 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 09:52:51,569 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 09:52:51,569 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 09:52:51,570 INFO L85 PathProgramCache]: Analyzing trace with hash 683597886, now seen corresponding path program 1 times [2024-10-24 09:52:51,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 09:52:51,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479053111] [2024-10-24 09:52:51,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 09:52:51,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 09:52:51,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:00,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 09:53:00,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:00,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 09:53:00,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:00,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 09:53:00,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:00,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 09:53:00,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:00,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 09:53:00,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:00,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 09:53:00,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:00,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 09:53:00,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:00,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 09:53:00,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:00,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 09:53:00,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:00,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 09:53:00,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:00,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 09:53:00,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:00,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 09:53:00,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:00,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 09:53:00,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:00,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 09:53:00,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:00,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 09:53:00,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:00,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 09:53:00,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:00,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 09:53:00,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:00,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 09:53:00,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:00,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 09:53:00,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:00,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 09:53:00,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:00,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-24 09:53:00,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:00,715 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 09:53:00,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:00,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-24 09:53:00,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:00,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-24 09:53:00,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:00,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-24 09:53:00,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:00,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-24 09:53:00,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:00,726 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-10-24 09:53:00,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 09:53:00,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479053111] [2024-10-24 09:53:00,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [479053111] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 09:53:00,727 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 09:53:00,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-24 09:53:00,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021552200] [2024-10-24 09:53:00,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 09:53:00,728 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 09:53:00,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 09:53:00,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 09:53:00,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-10-24 09:53:00,730 INFO L87 Difference]: Start difference. First operand 69 states and 107 transitions. Second operand has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 9 states have internal predecessors, (32), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-10-24 09:53:02,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 09:53:02,464 INFO L93 Difference]: Finished difference Result 218 states and 329 transitions. [2024-10-24 09:53:02,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 09:53:02,467 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 9 states have internal predecessors, (32), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 159 [2024-10-24 09:53:02,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 09:53:02,472 INFO L225 Difference]: With dead ends: 218 [2024-10-24 09:53:02,474 INFO L226 Difference]: Without dead ends: 150 [2024-10-24 09:53:02,475 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2024-10-24 09:53:02,475 INFO L432 NwaCegarLoop]: 80 mSDtfsCounter, 372 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 372 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-24 09:53:02,476 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [372 Valid, 320 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-24 09:53:02,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2024-10-24 09:53:02,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 82. [2024-10-24 09:53:02,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 54 states have (on average 1.3888888888888888) internal successors, (75), 54 states have internal predecessors, (75), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-10-24 09:53:02,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 127 transitions. [2024-10-24 09:53:02,498 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 127 transitions. Word has length 159 [2024-10-24 09:53:02,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 09:53:02,501 INFO L471 AbstractCegarLoop]: Abstraction has 82 states and 127 transitions. [2024-10-24 09:53:02,502 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 9 states have internal predecessors, (32), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-10-24 09:53:02,502 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 127 transitions. [2024-10-24 09:53:02,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-10-24 09:53:02,504 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 09:53:02,504 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 09:53:02,504 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 09:53:02,509 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 09:53:02,510 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 09:53:02,510 INFO L85 PathProgramCache]: Analyzing trace with hash 1363656256, now seen corresponding path program 1 times [2024-10-24 09:53:02,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 09:53:02,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430070427] [2024-10-24 09:53:02,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 09:53:02,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 09:53:02,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:02,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 09:53:02,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:02,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 09:53:02,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:02,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 09:53:02,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:02,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 09:53:02,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:02,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 09:53:02,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:02,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 09:53:02,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:02,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 09:53:02,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:02,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 09:53:02,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:02,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 09:53:02,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:02,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 09:53:02,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:02,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 09:53:02,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:02,715 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 09:53:02,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:02,718 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 09:53:02,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:02,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 09:53:02,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:02,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 09:53:02,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:02,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 09:53:02,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:02,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 09:53:02,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:02,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 09:53:02,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:02,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 09:53:02,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:02,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 09:53:02,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:02,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-24 09:53:02,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:02,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 09:53:02,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:02,736 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-24 09:53:02,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:02,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-24 09:53:02,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:02,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-24 09:53:02,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:02,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-24 09:53:02,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:02,743 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-10-24 09:53:02,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 09:53:02,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430070427] [2024-10-24 09:53:02,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430070427] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 09:53:02,744 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 09:53:02,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 09:53:02,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240820848] [2024-10-24 09:53:02,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 09:53:02,745 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 09:53:02,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 09:53:02,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 09:53:02,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 09:53:02,748 INFO L87 Difference]: Start difference. First operand 82 states and 127 transitions. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-10-24 09:53:02,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 09:53:02,818 INFO L93 Difference]: Finished difference Result 193 states and 295 transitions. [2024-10-24 09:53:02,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 09:53:02,818 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 159 [2024-10-24 09:53:02,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 09:53:02,820 INFO L225 Difference]: With dead ends: 193 [2024-10-24 09:53:02,822 INFO L226 Difference]: Without dead ends: 112 [2024-10-24 09:53:02,823 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 09:53:02,824 INFO L432 NwaCegarLoop]: 110 mSDtfsCounter, 40 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 09:53:02,824 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 298 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 09:53:02,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2024-10-24 09:53:02,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 109. [2024-10-24 09:53:02,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 76 states have (on average 1.368421052631579) internal successors, (104), 77 states have internal predecessors, (104), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2024-10-24 09:53:02,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 164 transitions. [2024-10-24 09:53:02,840 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 164 transitions. Word has length 159 [2024-10-24 09:53:02,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 09:53:02,842 INFO L471 AbstractCegarLoop]: Abstraction has 109 states and 164 transitions. [2024-10-24 09:53:02,842 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-10-24 09:53:02,842 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 164 transitions. [2024-10-24 09:53:02,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-10-24 09:53:02,846 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 09:53:02,847 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 09:53:02,847 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 09:53:02,847 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 09:53:02,847 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 09:53:02,847 INFO L85 PathProgramCache]: Analyzing trace with hash 290570876, now seen corresponding path program 1 times [2024-10-24 09:53:02,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 09:53:02,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983238492] [2024-10-24 09:53:02,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 09:53:02,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 09:53:02,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:10,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 09:53:10,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:10,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 09:53:10,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:10,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 09:53:10,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:10,987 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 09:53:10,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:10,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 09:53:10,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:10,992 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 09:53:10,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:10,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 09:53:10,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:10,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 09:53:10,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:11,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 09:53:11,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:11,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 09:53:11,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:11,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 09:53:11,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:11,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 09:53:11,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:11,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 09:53:11,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:11,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 09:53:11,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:11,017 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 09:53:11,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:11,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 09:53:11,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:11,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 09:53:11,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:11,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 09:53:11,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:11,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 09:53:11,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:11,032 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 09:53:11,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:11,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-24 09:53:11,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:11,038 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 09:53:11,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:11,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-24 09:53:11,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:11,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-24 09:53:11,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:11,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-24 09:53:11,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:11,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-24 09:53:11,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:11,053 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-10-24 09:53:11,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 09:53:11,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983238492] [2024-10-24 09:53:11,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1983238492] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 09:53:11,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 09:53:11,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-24 09:53:11,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413150085] [2024-10-24 09:53:11,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 09:53:11,055 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-24 09:53:11,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 09:53:11,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-24 09:53:11,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-10-24 09:53:11,058 INFO L87 Difference]: Start difference. First operand 109 states and 164 transitions. Second operand has 12 states, 12 states have (on average 2.6666666666666665) internal successors, (32), 12 states have internal predecessors, (32), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-10-24 09:53:13,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 09:53:13,586 INFO L93 Difference]: Finished difference Result 386 states and 572 transitions. [2024-10-24 09:53:13,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-24 09:53:13,586 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.6666666666666665) internal successors, (32), 12 states have internal predecessors, (32), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 159 [2024-10-24 09:53:13,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 09:53:13,592 INFO L225 Difference]: With dead ends: 386 [2024-10-24 09:53:13,593 INFO L226 Difference]: Without dead ends: 278 [2024-10-24 09:53:13,594 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=129, Invalid=377, Unknown=0, NotChecked=0, Total=506 [2024-10-24 09:53:13,595 INFO L432 NwaCegarLoop]: 81 mSDtfsCounter, 419 mSDsluCounter, 387 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 419 SdHoareTripleChecker+Valid, 468 SdHoareTripleChecker+Invalid, 561 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-24 09:53:13,595 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [419 Valid, 468 Invalid, 561 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 481 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-24 09:53:13,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2024-10-24 09:53:13,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 158. [2024-10-24 09:53:13,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 98 states have (on average 1.3265306122448979) internal successors, (130), 99 states have internal predecessors, (130), 56 states have call successors, (56), 3 states have call predecessors, (56), 3 states have return successors, (56), 55 states have call predecessors, (56), 56 states have call successors, (56) [2024-10-24 09:53:13,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 242 transitions. [2024-10-24 09:53:13,614 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 242 transitions. Word has length 159 [2024-10-24 09:53:13,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 09:53:13,615 INFO L471 AbstractCegarLoop]: Abstraction has 158 states and 242 transitions. [2024-10-24 09:53:13,615 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.6666666666666665) internal successors, (32), 12 states have internal predecessors, (32), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-10-24 09:53:13,615 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 242 transitions. [2024-10-24 09:53:13,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-10-24 09:53:13,616 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 09:53:13,617 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 09:53:13,617 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 09:53:13,617 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 09:53:13,617 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 09:53:13,617 INFO L85 PathProgramCache]: Analyzing trace with hash 1384662464, now seen corresponding path program 1 times [2024-10-24 09:53:13,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 09:53:13,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960700841] [2024-10-24 09:53:13,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 09:53:13,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 09:53:13,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:13,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 09:53:13,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:13,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 09:53:13,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:13,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 09:53:13,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:13,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 09:53:13,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:14,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 09:53:14,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:14,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 09:53:14,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:14,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 09:53:14,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:14,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 09:53:14,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:14,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 09:53:14,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:14,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 09:53:14,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:14,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 09:53:14,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:14,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 09:53:14,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:14,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 09:53:14,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:14,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 09:53:14,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:14,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 09:53:14,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:14,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 09:53:14,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:14,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 09:53:14,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:14,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 09:53:14,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:14,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 09:53:14,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:14,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 09:53:14,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:14,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-24 09:53:14,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:14,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 09:53:14,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:14,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-24 09:53:14,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:14,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-24 09:53:14,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:14,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-24 09:53:14,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:14,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-24 09:53:14,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:14,105 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-10-24 09:53:14,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 09:53:14,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960700841] [2024-10-24 09:53:14,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960700841] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 09:53:14,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 09:53:14,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 09:53:14,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176495784] [2024-10-24 09:53:14,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 09:53:14,108 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 09:53:14,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 09:53:14,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 09:53:14,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 09:53:14,109 INFO L87 Difference]: Start difference. First operand 158 states and 242 transitions. Second operand has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-10-24 09:53:14,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 09:53:14,454 INFO L93 Difference]: Finished difference Result 319 states and 482 transitions. [2024-10-24 09:53:14,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 09:53:14,454 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 159 [2024-10-24 09:53:14,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 09:53:14,456 INFO L225 Difference]: With dead ends: 319 [2024-10-24 09:53:14,456 INFO L226 Difference]: Without dead ends: 211 [2024-10-24 09:53:14,457 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-24 09:53:14,457 INFO L432 NwaCegarLoop]: 95 mSDtfsCounter, 96 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 405 SdHoareTripleChecker+Invalid, 318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 09:53:14,458 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 405 Invalid, 318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 09:53:14,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2024-10-24 09:53:14,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 164. [2024-10-24 09:53:14,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 104 states have (on average 1.3173076923076923) internal successors, (137), 105 states have internal predecessors, (137), 56 states have call successors, (56), 3 states have call predecessors, (56), 3 states have return successors, (56), 55 states have call predecessors, (56), 56 states have call successors, (56) [2024-10-24 09:53:14,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 249 transitions. [2024-10-24 09:53:14,486 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 249 transitions. Word has length 159 [2024-10-24 09:53:14,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 09:53:14,486 INFO L471 AbstractCegarLoop]: Abstraction has 164 states and 249 transitions. [2024-10-24 09:53:14,487 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-10-24 09:53:14,487 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 249 transitions. [2024-10-24 09:53:14,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-10-24 09:53:14,488 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 09:53:14,488 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 09:53:14,488 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 09:53:14,488 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 09:53:14,488 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 09:53:14,488 INFO L85 PathProgramCache]: Analyzing trace with hash -296235138, now seen corresponding path program 1 times [2024-10-24 09:53:14,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 09:53:14,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077102325] [2024-10-24 09:53:14,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 09:53:14,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 09:53:14,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:22,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 09:53:22,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:22,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 09:53:22,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:22,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 09:53:22,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:22,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 09:53:22,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:22,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 09:53:22,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:22,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 09:53:22,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:22,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 09:53:22,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:22,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 09:53:22,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:22,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 09:53:22,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:22,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 09:53:22,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:22,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 09:53:22,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:22,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 09:53:22,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:22,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 09:53:22,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:22,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 09:53:22,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:22,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 09:53:22,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:22,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 09:53:22,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:22,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 09:53:22,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:22,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 09:53:22,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:22,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 09:53:22,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:22,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 09:53:22,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:22,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-24 09:53:22,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:22,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 09:53:22,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:22,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-24 09:53:22,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:22,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-24 09:53:22,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:22,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-24 09:53:22,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:22,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-24 09:53:22,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:22,945 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-10-24 09:53:22,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 09:53:22,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077102325] [2024-10-24 09:53:22,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077102325] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 09:53:22,946 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 09:53:22,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-24 09:53:22,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539096037] [2024-10-24 09:53:22,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 09:53:22,946 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-24 09:53:22,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 09:53:22,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-24 09:53:22,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-10-24 09:53:22,947 INFO L87 Difference]: Start difference. First operand 164 states and 249 transitions. Second operand has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 11 states have internal predecessors, (32), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-10-24 09:53:25,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 09:53:25,357 INFO L93 Difference]: Finished difference Result 337 states and 503 transitions. [2024-10-24 09:53:25,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-24 09:53:25,357 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 11 states have internal predecessors, (32), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 159 [2024-10-24 09:53:25,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 09:53:25,359 INFO L225 Difference]: With dead ends: 337 [2024-10-24 09:53:25,359 INFO L226 Difference]: Without dead ends: 229 [2024-10-24 09:53:25,360 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2024-10-24 09:53:25,361 INFO L432 NwaCegarLoop]: 79 mSDtfsCounter, 200 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 390 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-24 09:53:25,361 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [200 Valid, 390 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 351 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-24 09:53:25,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2024-10-24 09:53:25,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 162. [2024-10-24 09:53:25,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 102 states have (on average 1.3235294117647058) internal successors, (135), 103 states have internal predecessors, (135), 56 states have call successors, (56), 3 states have call predecessors, (56), 3 states have return successors, (56), 55 states have call predecessors, (56), 56 states have call successors, (56) [2024-10-24 09:53:25,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 247 transitions. [2024-10-24 09:53:25,378 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 247 transitions. Word has length 159 [2024-10-24 09:53:25,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 09:53:25,378 INFO L471 AbstractCegarLoop]: Abstraction has 162 states and 247 transitions. [2024-10-24 09:53:25,378 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 11 states have internal predecessors, (32), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-10-24 09:53:25,378 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 247 transitions. [2024-10-24 09:53:25,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-10-24 09:53:25,379 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 09:53:25,380 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 09:53:25,380 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 09:53:25,380 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 09:53:25,380 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 09:53:25,380 INFO L85 PathProgramCache]: Analyzing trace with hash -14289842, now seen corresponding path program 1 times [2024-10-24 09:53:25,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 09:53:25,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103505085] [2024-10-24 09:53:25,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 09:53:25,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 09:53:25,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:25,495 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 09:53:25,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:25,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 09:53:25,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:25,498 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 09:53:25,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:25,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 09:53:25,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:25,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 09:53:25,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:25,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 09:53:25,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:25,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 09:53:25,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:25,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 09:53:25,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:25,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 09:53:25,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:25,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 09:53:25,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:25,505 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 09:53:25,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:25,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 09:53:25,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:25,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 09:53:25,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:25,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 09:53:25,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:25,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 09:53:25,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:25,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 09:53:25,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:25,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 09:53:25,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:25,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 09:53:25,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:25,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 09:53:25,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:25,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 09:53:25,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:25,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-24 09:53:25,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:25,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 09:53:25,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:25,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-24 09:53:25,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:25,519 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-24 09:53:25,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:25,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-24 09:53:25,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:25,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-24 09:53:25,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:25,522 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-10-24 09:53:25,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 09:53:25,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103505085] [2024-10-24 09:53:25,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1103505085] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 09:53:25,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 09:53:25,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 09:53:25,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475941308] [2024-10-24 09:53:25,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 09:53:25,523 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 09:53:25,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 09:53:25,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 09:53:25,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 09:53:25,524 INFO L87 Difference]: Start difference. First operand 162 states and 247 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-10-24 09:53:25,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 09:53:25,595 INFO L93 Difference]: Finished difference Result 296 states and 441 transitions. [2024-10-24 09:53:25,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 09:53:25,595 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 160 [2024-10-24 09:53:25,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 09:53:25,597 INFO L225 Difference]: With dead ends: 296 [2024-10-24 09:53:25,597 INFO L226 Difference]: Without dead ends: 188 [2024-10-24 09:53:25,597 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 09:53:25,598 INFO L432 NwaCegarLoop]: 117 mSDtfsCounter, 58 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 297 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 09:53:25,598 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 297 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 09:53:25,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2024-10-24 09:53:25,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 159. [2024-10-24 09:53:25,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 102 states have (on average 1.3137254901960784) internal successors, (134), 102 states have internal predecessors, (134), 52 states have call successors, (52), 4 states have call predecessors, (52), 4 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-10-24 09:53:25,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 238 transitions. [2024-10-24 09:53:25,612 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 238 transitions. Word has length 160 [2024-10-24 09:53:25,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 09:53:25,613 INFO L471 AbstractCegarLoop]: Abstraction has 159 states and 238 transitions. [2024-10-24 09:53:25,613 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-10-24 09:53:25,613 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 238 transitions. [2024-10-24 09:53:25,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-10-24 09:53:25,614 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 09:53:25,614 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 09:53:25,614 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-24 09:53:25,615 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 09:53:25,615 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 09:53:25,615 INFO L85 PathProgramCache]: Analyzing trace with hash 665768528, now seen corresponding path program 1 times [2024-10-24 09:53:25,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 09:53:25,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733997000] [2024-10-24 09:53:25,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 09:53:25,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 09:53:25,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:30,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 09:53:30,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:30,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 09:53:30,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:30,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 09:53:30,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:30,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 09:53:30,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:31,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 09:53:31,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:31,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 09:53:31,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:31,037 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 09:53:31,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:31,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 09:53:31,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:31,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 09:53:31,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:31,064 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 09:53:31,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:31,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 09:53:31,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:31,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 09:53:31,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:31,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 09:53:31,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:31,097 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 09:53:31,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:31,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 09:53:31,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:31,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 09:53:31,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:31,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 09:53:31,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:31,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 09:53:31,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:31,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 09:53:31,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:31,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 09:53:31,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:31,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-24 09:53:31,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:31,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 09:53:31,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:31,166 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-24 09:53:31,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:31,174 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-24 09:53:31,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:31,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-24 09:53:31,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:31,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-24 09:53:31,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:31,198 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-10-24 09:53:31,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 09:53:31,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733997000] [2024-10-24 09:53:31,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733997000] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 09:53:31,199 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 09:53:31,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-10-24 09:53:31,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677016399] [2024-10-24 09:53:31,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 09:53:31,199 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-24 09:53:31,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 09:53:31,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-24 09:53:31,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2024-10-24 09:53:31,201 INFO L87 Difference]: Start difference. First operand 159 states and 238 transitions. Second operand has 13 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 13 states have internal predecessors, (33), 2 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2024-10-24 09:53:32,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 09:53:32,641 INFO L93 Difference]: Finished difference Result 353 states and 515 transitions. [2024-10-24 09:53:32,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-24 09:53:32,641 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 13 states have internal predecessors, (33), 2 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 160 [2024-10-24 09:53:32,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 09:53:32,643 INFO L225 Difference]: With dead ends: 353 [2024-10-24 09:53:32,643 INFO L226 Difference]: Without dead ends: 255 [2024-10-24 09:53:32,644 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=137, Invalid=369, Unknown=0, NotChecked=0, Total=506 [2024-10-24 09:53:32,644 INFO L432 NwaCegarLoop]: 99 mSDtfsCounter, 257 mSDsluCounter, 509 mSDsCounter, 0 mSdLazyCounter, 527 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 257 SdHoareTripleChecker+Valid, 608 SdHoareTripleChecker+Invalid, 629 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-24 09:53:32,644 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [257 Valid, 608 Invalid, 629 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 527 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-24 09:53:32,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2024-10-24 09:53:32,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 169. [2024-10-24 09:53:32,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 112 states have (on average 1.3214285714285714) internal successors, (148), 112 states have internal predecessors, (148), 52 states have call successors, (52), 4 states have call predecessors, (52), 4 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-10-24 09:53:32,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 252 transitions. [2024-10-24 09:53:32,659 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 252 transitions. Word has length 160 [2024-10-24 09:53:32,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 09:53:32,660 INFO L471 AbstractCegarLoop]: Abstraction has 169 states and 252 transitions. [2024-10-24 09:53:32,660 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 13 states have internal predecessors, (33), 2 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2024-10-24 09:53:32,660 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 252 transitions. [2024-10-24 09:53:32,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-10-24 09:53:32,661 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 09:53:32,661 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 09:53:32,661 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-24 09:53:32,661 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 09:53:32,662 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 09:53:32,662 INFO L85 PathProgramCache]: Analyzing trace with hash 272741518, now seen corresponding path program 1 times [2024-10-24 09:53:32,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 09:53:32,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420446159] [2024-10-24 09:53:32,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 09:53:32,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 09:53:32,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:38,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 09:53:38,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:38,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 09:53:38,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:38,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 09:53:38,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:38,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 09:53:38,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:38,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 09:53:38,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:38,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 09:53:38,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:38,541 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 09:53:38,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:38,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 09:53:38,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:38,547 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 09:53:38,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:38,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 09:53:38,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:38,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 09:53:38,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:38,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 09:53:38,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:38,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 09:53:38,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:38,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 09:53:38,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:38,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 09:53:38,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:38,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 09:53:38,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:38,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 09:53:38,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:38,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 09:53:38,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:38,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 09:53:38,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:38,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 09:53:38,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:38,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-24 09:53:38,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:38,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 09:53:38,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:38,587 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-24 09:53:38,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:38,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-24 09:53:38,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:38,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-24 09:53:38,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:38,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-24 09:53:38,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:38,602 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-10-24 09:53:38,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 09:53:38,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420446159] [2024-10-24 09:53:38,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420446159] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 09:53:38,603 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 09:53:38,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-24 09:53:38,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162137330] [2024-10-24 09:53:38,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 09:53:38,604 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-24 09:53:38,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 09:53:38,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-24 09:53:38,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2024-10-24 09:53:38,605 INFO L87 Difference]: Start difference. First operand 169 states and 252 transitions. Second operand has 12 states, 11 states have (on average 3.0) internal successors, (33), 12 states have internal predecessors, (33), 2 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 2 states have call successors, (26) [2024-10-24 09:53:39,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 09:53:39,674 INFO L93 Difference]: Finished difference Result 324 states and 477 transitions. [2024-10-24 09:53:39,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-24 09:53:39,674 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.0) internal successors, (33), 12 states have internal predecessors, (33), 2 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 2 states have call successors, (26) Word has length 160 [2024-10-24 09:53:39,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 09:53:39,676 INFO L225 Difference]: With dead ends: 324 [2024-10-24 09:53:39,676 INFO L226 Difference]: Without dead ends: 226 [2024-10-24 09:53:39,677 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=123, Invalid=257, Unknown=0, NotChecked=0, Total=380 [2024-10-24 09:53:39,677 INFO L432 NwaCegarLoop]: 99 mSDtfsCounter, 164 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 403 mSolverCounterSat, 134 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 437 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 134 IncrementalHoareTripleChecker+Valid, 403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-24 09:53:39,677 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 437 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [134 Valid, 403 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-24 09:53:39,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2024-10-24 09:53:39,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 167. [2024-10-24 09:53:39,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 110 states have (on average 1.3272727272727274) internal successors, (146), 110 states have internal predecessors, (146), 52 states have call successors, (52), 4 states have call predecessors, (52), 4 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-10-24 09:53:39,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 250 transitions. [2024-10-24 09:53:39,692 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 250 transitions. Word has length 160 [2024-10-24 09:53:39,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 09:53:39,692 INFO L471 AbstractCegarLoop]: Abstraction has 167 states and 250 transitions. [2024-10-24 09:53:39,692 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.0) internal successors, (33), 12 states have internal predecessors, (33), 2 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 2 states have call successors, (26) [2024-10-24 09:53:39,692 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 250 transitions. [2024-10-24 09:53:39,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-10-24 09:53:39,693 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 09:53:39,694 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 09:53:39,694 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-24 09:53:39,694 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 09:53:39,694 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 09:53:39,694 INFO L85 PathProgramCache]: Analyzing trace with hash 996827408, now seen corresponding path program 1 times [2024-10-24 09:53:39,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 09:53:39,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091286674] [2024-10-24 09:53:39,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 09:53:39,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 09:53:39,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:45,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 09:53:45,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:45,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 09:53:45,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:45,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 09:53:45,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:45,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 09:53:45,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:45,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 09:53:45,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:45,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 09:53:45,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:45,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 09:53:45,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:45,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 09:53:45,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:45,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 09:53:45,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:45,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 09:53:45,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:45,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 09:53:45,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:45,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 09:53:45,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:45,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 09:53:45,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:45,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 09:53:45,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:45,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 09:53:45,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:45,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 09:53:45,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:45,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 09:53:45,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:45,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 09:53:45,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:45,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 09:53:45,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:45,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 09:53:45,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:45,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-24 09:53:45,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:45,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 09:53:45,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:45,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-24 09:53:45,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:45,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-24 09:53:45,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:45,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-24 09:53:45,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:45,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-24 09:53:45,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:45,712 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-10-24 09:53:45,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 09:53:45,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091286674] [2024-10-24 09:53:45,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2091286674] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 09:53:45,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 09:53:45,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-24 09:53:45,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877924065] [2024-10-24 09:53:45,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 09:53:45,713 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-24 09:53:45,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 09:53:45,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-24 09:53:45,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-10-24 09:53:45,714 INFO L87 Difference]: Start difference. First operand 167 states and 250 transitions. Second operand has 11 states, 11 states have (on average 3.0) internal successors, (33), 11 states have internal predecessors, (33), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-10-24 09:53:46,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 09:53:46,840 INFO L93 Difference]: Finished difference Result 398 states and 577 transitions. [2024-10-24 09:53:46,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-24 09:53:46,841 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.0) internal successors, (33), 11 states have internal predecessors, (33), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 160 [2024-10-24 09:53:46,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 09:53:46,843 INFO L225 Difference]: With dead ends: 398 [2024-10-24 09:53:46,843 INFO L226 Difference]: Without dead ends: 300 [2024-10-24 09:53:46,843 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=120, Invalid=300, Unknown=0, NotChecked=0, Total=420 [2024-10-24 09:53:46,844 INFO L432 NwaCegarLoop]: 82 mSDtfsCounter, 404 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 409 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 404 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 409 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-24 09:53:46,844 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [404 Valid, 453 Invalid, 489 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 409 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-24 09:53:46,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2024-10-24 09:53:46,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 171. [2024-10-24 09:53:46,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 114 states have (on average 1.3333333333333333) internal successors, (152), 114 states have internal predecessors, (152), 52 states have call successors, (52), 4 states have call predecessors, (52), 4 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-10-24 09:53:46,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 256 transitions. [2024-10-24 09:53:46,858 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 256 transitions. Word has length 160 [2024-10-24 09:53:46,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 09:53:46,858 INFO L471 AbstractCegarLoop]: Abstraction has 171 states and 256 transitions. [2024-10-24 09:53:46,859 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.0) internal successors, (33), 11 states have internal predecessors, (33), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-10-24 09:53:46,859 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 256 transitions. [2024-10-24 09:53:46,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-10-24 09:53:46,860 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 09:53:46,860 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 09:53:46,860 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-24 09:53:46,860 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 09:53:46,860 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 09:53:46,860 INFO L85 PathProgramCache]: Analyzing trace with hash 1676885778, now seen corresponding path program 1 times [2024-10-24 09:53:46,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 09:53:46,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895377847] [2024-10-24 09:53:46,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 09:53:46,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 09:53:46,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:51,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 09:53:51,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:51,519 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 09:53:51,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:51,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 09:53:51,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:51,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 09:53:51,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:51,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 09:53:51,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:51,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 09:53:51,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:51,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 09:53:51,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:51,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 09:53:51,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:51,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 09:53:51,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:51,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 09:53:51,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:51,551 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 09:53:51,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:51,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 09:53:51,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:51,559 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 09:53:51,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:51,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 09:53:51,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:51,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 09:53:51,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:51,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 09:53:51,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:51,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 09:53:51,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:51,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 09:53:51,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:51,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 09:53:51,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:51,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 09:53:51,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:51,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-24 09:53:51,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:51,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 09:53:51,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:51,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-24 09:53:51,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:51,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-24 09:53:51,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:51,608 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-24 09:53:51,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:51,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-24 09:53:51,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:51,617 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-10-24 09:53:51,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 09:53:51,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895377847] [2024-10-24 09:53:51,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895377847] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 09:53:51,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 09:53:51,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-24 09:53:51,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905088941] [2024-10-24 09:53:51,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 09:53:51,618 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-24 09:53:51,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 09:53:51,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-24 09:53:51,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2024-10-24 09:53:51,619 INFO L87 Difference]: Start difference. First operand 171 states and 256 transitions. Second operand has 12 states, 11 states have (on average 3.0) internal successors, (33), 12 states have internal predecessors, (33), 2 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 2 states have call successors, (26) [2024-10-24 09:53:53,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 09:53:53,646 INFO L93 Difference]: Finished difference Result 360 states and 526 transitions. [2024-10-24 09:53:53,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-24 09:53:53,647 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.0) internal successors, (33), 12 states have internal predecessors, (33), 2 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 2 states have call successors, (26) Word has length 160 [2024-10-24 09:53:53,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 09:53:53,648 INFO L225 Difference]: With dead ends: 360 [2024-10-24 09:53:53,648 INFO L226 Difference]: Without dead ends: 262 [2024-10-24 09:53:53,649 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 55 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=112, Invalid=308, Unknown=0, NotChecked=0, Total=420 [2024-10-24 09:53:53,649 INFO L432 NwaCegarLoop]: 103 mSDtfsCounter, 261 mSDsluCounter, 422 mSDsCounter, 0 mSdLazyCounter, 726 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 261 SdHoareTripleChecker+Valid, 525 SdHoareTripleChecker+Invalid, 859 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 726 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-24 09:53:53,650 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [261 Valid, 525 Invalid, 859 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 726 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-24 09:53:53,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2024-10-24 09:53:53,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 173. [2024-10-24 09:53:53,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 116 states have (on average 1.3448275862068966) internal successors, (156), 116 states have internal predecessors, (156), 52 states have call successors, (52), 4 states have call predecessors, (52), 4 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-10-24 09:53:53,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 260 transitions. [2024-10-24 09:53:53,665 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 260 transitions. Word has length 160 [2024-10-24 09:53:53,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 09:53:53,665 INFO L471 AbstractCegarLoop]: Abstraction has 173 states and 260 transitions. [2024-10-24 09:53:53,665 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.0) internal successors, (33), 12 states have internal predecessors, (33), 2 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 2 states have call successors, (26) [2024-10-24 09:53:53,665 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 260 transitions. [2024-10-24 09:53:53,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-10-24 09:53:53,666 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 09:53:53,666 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 09:53:53,666 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-24 09:53:53,667 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 09:53:53,667 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 09:53:53,667 INFO L85 PathProgramCache]: Analyzing trace with hash 603800398, now seen corresponding path program 1 times [2024-10-24 09:53:53,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 09:53:53,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025532981] [2024-10-24 09:53:53,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 09:53:53,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 09:53:53,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:58,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 09:53:58,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:58,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 09:53:58,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:58,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 09:53:58,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:58,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 09:53:58,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:58,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 09:53:58,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:58,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 09:53:58,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:58,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 09:53:58,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:58,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 09:53:58,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:58,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 09:53:58,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:58,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 09:53:58,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:58,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 09:53:58,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:58,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 09:53:58,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:58,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 09:53:58,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:58,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 09:53:58,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:58,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 09:53:58,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:58,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 09:53:58,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:58,711 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 09:53:58,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:58,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 09:53:58,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:58,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 09:53:58,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:58,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 09:53:58,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:58,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-24 09:53:58,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:58,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 09:53:58,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:58,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-24 09:53:58,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:58,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-24 09:53:58,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:58,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-24 09:53:58,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:58,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-24 09:53:58,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:53:58,729 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-10-24 09:53:58,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 09:53:58,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025532981] [2024-10-24 09:53:58,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2025532981] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 09:53:58,730 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 09:53:58,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-24 09:53:58,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125513791] [2024-10-24 09:53:58,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 09:53:58,730 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-24 09:53:58,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 09:53:58,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-24 09:53:58,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-10-24 09:53:58,731 INFO L87 Difference]: Start difference. First operand 173 states and 260 transitions. Second operand has 12 states, 12 states have (on average 2.75) internal successors, (33), 12 states have internal predecessors, (33), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-10-24 09:54:03,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 09:54:03,634 INFO L93 Difference]: Finished difference Result 410 states and 591 transitions. [2024-10-24 09:54:03,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-10-24 09:54:03,635 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.75) internal successors, (33), 12 states have internal predecessors, (33), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 160 [2024-10-24 09:54:03,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 09:54:03,637 INFO L225 Difference]: With dead ends: 410 [2024-10-24 09:54:03,637 INFO L226 Difference]: Without dead ends: 312 [2024-10-24 09:54:03,638 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 139 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=208, Invalid=662, Unknown=0, NotChecked=0, Total=870 [2024-10-24 09:54:03,638 INFO L432 NwaCegarLoop]: 99 mSDtfsCounter, 376 mSDsluCounter, 434 mSDsCounter, 0 mSdLazyCounter, 657 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 376 SdHoareTripleChecker+Valid, 533 SdHoareTripleChecker+Invalid, 738 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 657 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-24 09:54:03,638 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [376 Valid, 533 Invalid, 738 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 657 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-24 09:54:03,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2024-10-24 09:54:03,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 174. [2024-10-24 09:54:03,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 117 states have (on average 1.3504273504273505) internal successors, (158), 117 states have internal predecessors, (158), 52 states have call successors, (52), 4 states have call predecessors, (52), 4 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-10-24 09:54:03,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 262 transitions. [2024-10-24 09:54:03,652 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 262 transitions. Word has length 160 [2024-10-24 09:54:03,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 09:54:03,653 INFO L471 AbstractCegarLoop]: Abstraction has 174 states and 262 transitions. [2024-10-24 09:54:03,653 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.75) internal successors, (33), 12 states have internal predecessors, (33), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-10-24 09:54:03,653 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 262 transitions. [2024-10-24 09:54:03,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-10-24 09:54:03,654 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 09:54:03,654 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 09:54:03,654 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-24 09:54:03,654 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 09:54:03,655 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 09:54:03,655 INFO L85 PathProgramCache]: Analyzing trace with hash 1283858768, now seen corresponding path program 1 times [2024-10-24 09:54:03,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 09:54:03,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576419694] [2024-10-24 09:54:03,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 09:54:03,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 09:54:03,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:54:10,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 09:54:10,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:54:10,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 09:54:10,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:54:10,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 09:54:10,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:54:10,446 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 09:54:10,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:54:10,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 09:54:10,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:54:10,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 09:54:10,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:54:10,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 09:54:10,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:54:10,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 09:54:10,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:54:10,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 09:54:10,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:54:10,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 09:54:10,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:54:10,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 09:54:10,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:54:10,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 09:54:10,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:54:10,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 09:54:10,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:54:10,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 09:54:10,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:54:10,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 09:54:10,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:54:10,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 09:54:10,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:54:10,468 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 09:54:10,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:54:10,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 09:54:10,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:54:10,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 09:54:10,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:54:10,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 09:54:10,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:54:10,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-24 09:54:10,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:54:10,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 09:54:10,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:54:10,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-24 09:54:10,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:54:10,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-24 09:54:10,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:54:10,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-24 09:54:10,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:54:10,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-24 09:54:10,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:54:10,489 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-10-24 09:54:10,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 09:54:10,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576419694] [2024-10-24 09:54:10,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576419694] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 09:54:10,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 09:54:10,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-24 09:54:10,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689363051] [2024-10-24 09:54:10,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 09:54:10,490 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-24 09:54:10,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 09:54:10,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-24 09:54:10,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-10-24 09:54:10,491 INFO L87 Difference]: Start difference. First operand 174 states and 262 transitions. Second operand has 11 states, 11 states have (on average 3.0) internal successors, (33), 11 states have internal predecessors, (33), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-10-24 09:54:11,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 09:54:11,292 INFO L93 Difference]: Finished difference Result 345 states and 506 transitions. [2024-10-24 09:54:11,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-24 09:54:11,293 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.0) internal successors, (33), 11 states have internal predecessors, (33), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 160 [2024-10-24 09:54:11,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 09:54:11,294 INFO L225 Difference]: With dead ends: 345 [2024-10-24 09:54:11,294 INFO L226 Difference]: Without dead ends: 247 [2024-10-24 09:54:11,295 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2024-10-24 09:54:11,295 INFO L432 NwaCegarLoop]: 101 mSDtfsCounter, 166 mSDsluCounter, 389 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 490 SdHoareTripleChecker+Invalid, 565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-24 09:54:11,295 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 490 Invalid, 565 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 484 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-24 09:54:11,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2024-10-24 09:54:11,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 173. [2024-10-24 09:54:11,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 116 states have (on average 1.3448275862068966) internal successors, (156), 116 states have internal predecessors, (156), 52 states have call successors, (52), 4 states have call predecessors, (52), 4 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-10-24 09:54:11,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 260 transitions. [2024-10-24 09:54:11,310 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 260 transitions. Word has length 160 [2024-10-24 09:54:11,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 09:54:11,310 INFO L471 AbstractCegarLoop]: Abstraction has 173 states and 260 transitions. [2024-10-24 09:54:11,310 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.0) internal successors, (33), 11 states have internal predecessors, (33), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-10-24 09:54:11,310 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 260 transitions. [2024-10-24 09:54:11,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-10-24 09:54:11,311 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 09:54:11,311 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 09:54:11,311 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-24 09:54:11,311 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 09:54:11,311 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 09:54:11,311 INFO L85 PathProgramCache]: Analyzing trace with hash 410021394, now seen corresponding path program 1 times [2024-10-24 09:54:11,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 09:54:11,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079816091] [2024-10-24 09:54:11,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 09:54:11,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 09:54:11,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat