./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-85.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-85.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 6afecf8b719ebabe0f5d950a91928c70dceb2d3c076eae572c5fd9dee7e38018 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 18:06:40,524 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 18:06:40,562 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 18:06:40,565 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 18:06:40,565 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 18:06:40,584 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 18:06:40,586 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 18:06:40,587 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 18:06:40,587 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 18:06:40,588 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 18:06:40,588 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 18:06:40,588 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 18:06:40,589 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 18:06:40,590 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 18:06:40,591 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 18:06:40,591 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 18:06:40,591 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 18:06:40,591 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 18:06:40,592 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 18:06:40,592 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 18:06:40,592 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 18:06:40,595 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 18:06:40,595 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 18:06:40,595 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 18:06:40,596 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 18:06:40,596 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 18:06:40,596 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 18:06:40,596 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 18:06:40,596 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 18:06:40,596 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 18:06:40,596 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 18:06:40,597 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 18:06:40,597 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 18:06:40,597 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 18:06:40,597 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 18:06:40,597 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 18:06:40,597 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 18:06:40,598 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 18:06:40,598 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 18:06:40,598 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 18:06:40,599 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 18:06:40,600 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 18:06:40,600 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6afecf8b719ebabe0f5d950a91928c70dceb2d3c076eae572c5fd9dee7e38018 [2024-11-16 18:06:40,816 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 18:06:40,841 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 18:06:40,843 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 18:06:40,844 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 18:06:40,845 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 18:06:40,845 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-85.i [2024-11-16 18:06:42,155 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 18:06:42,300 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 18:06:42,301 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-85.i [2024-11-16 18:06:42,307 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a408be701/f20391fed7274460800f880f7bbc665c/FLAG4173cf630 [2024-11-16 18:06:42,317 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a408be701/f20391fed7274460800f880f7bbc665c [2024-11-16 18:06:42,318 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 18:06:42,319 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 18:06:42,320 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 18:06:42,320 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 18:06:42,324 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 18:06:42,324 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 06:06:42" (1/1) ... [2024-11-16 18:06:42,325 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@379167e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:06:42, skipping insertion in model container [2024-11-16 18:06:42,325 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 06:06:42" (1/1) ... [2024-11-16 18:06:42,341 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 18:06:42,452 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-85.i[913,926] [2024-11-16 18:06:42,496 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 18:06:42,505 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 18:06:42,514 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-85.i[913,926] [2024-11-16 18:06:42,533 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 18:06:42,549 INFO L204 MainTranslator]: Completed translation [2024-11-16 18:06:42,552 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:06:42 WrapperNode [2024-11-16 18:06:42,552 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 18:06:42,553 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 18:06:42,553 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 18:06:42,554 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 18:06:42,567 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:06:42" (1/1) ... [2024-11-16 18:06:42,581 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:06:42" (1/1) ... [2024-11-16 18:06:42,613 INFO L138 Inliner]: procedures = 26, calls = 36, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 125 [2024-11-16 18:06:42,614 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 18:06:42,615 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 18:06:42,615 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 18:06:42,615 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 18:06:42,624 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:06:42" (1/1) ... [2024-11-16 18:06:42,624 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:06:42" (1/1) ... [2024-11-16 18:06:42,626 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:06:42" (1/1) ... [2024-11-16 18:06:42,642 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-16 18:06:42,643 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:06:42" (1/1) ... [2024-11-16 18:06:42,643 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:06:42" (1/1) ... [2024-11-16 18:06:42,650 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:06:42" (1/1) ... [2024-11-16 18:06:42,651 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:06:42" (1/1) ... [2024-11-16 18:06:42,653 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:06:42" (1/1) ... [2024-11-16 18:06:42,654 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:06:42" (1/1) ... [2024-11-16 18:06:42,657 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 18:06:42,658 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 18:06:42,658 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 18:06:42,658 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 18:06:42,662 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:06:42" (1/1) ... [2024-11-16 18:06:42,672 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 18:06:42,681 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 18:06:42,703 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-16 18:06:42,707 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-16 18:06:42,775 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 18:06:42,776 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-16 18:06:42,777 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-16 18:06:42,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 18:06:42,777 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 18:06:42,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 18:06:42,857 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 18:06:42,858 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 18:06:43,086 INFO L? ?]: Removed 10 outVars from TransFormulas that were not future-live. [2024-11-16 18:06:43,087 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 18:06:43,100 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 18:06:43,101 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 18:06:43,102 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 06:06:43 BoogieIcfgContainer [2024-11-16 18:06:43,102 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 18:06:43,104 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 18:06:43,105 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 18:06:43,107 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 18:06:43,107 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 06:06:42" (1/3) ... [2024-11-16 18:06:43,108 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@221fa38c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 06:06:43, skipping insertion in model container [2024-11-16 18:06:43,109 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:06:42" (2/3) ... [2024-11-16 18:06:43,109 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@221fa38c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 06:06:43, skipping insertion in model container [2024-11-16 18:06:43,110 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 06:06:43" (3/3) ... [2024-11-16 18:06:43,111 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-85.i [2024-11-16 18:06:43,125 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 18:06:43,125 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 18:06:43,181 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 18:06:43,189 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;@1352ddaf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 18:06:43,189 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 18:06:43,197 INFO L276 IsEmpty]: Start isEmpty. Operand has 62 states, 36 states have (on average 1.2777777777777777) internal successors, (46), 37 states have internal predecessors, (46), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-16 18:06:43,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-16 18:06:43,210 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:06:43,211 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:06:43,211 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:06:43,215 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:06:43,216 INFO L85 PathProgramCache]: Analyzing trace with hash -906375749, now seen corresponding path program 1 times [2024-11-16 18:06:43,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:06:43,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952939052] [2024-11-16 18:06:43,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:06:43,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:06:43,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:06:43,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:06:43,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:06:43,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 18:06:43,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:06:43,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 18:06:43,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:06:43,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 18:06:43,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:06:43,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 18:06:43,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:06:43,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 18:06:43,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:06:43,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 18:06:43,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:06:43,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 18:06:43,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:06:43,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 18:06:43,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:06:43,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 18:06:43,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:06:43,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 18:06:43,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:06:43,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:06:43,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:06:43,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:06:43,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:06:43,541 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 18:06:43,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:06:43,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 18:06:43,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:06:43,547 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 18:06:43,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:06:43,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-16 18:06:43,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:06:43,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-16 18:06:43,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:06:43,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 18:06:43,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:06:43,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-16 18:06:43,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:06:43,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-16 18:06:43,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:06:43,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-16 18:06:43,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:06:43,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-16 18:06:43,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:06:43,580 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-16 18:06:43,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:06:43,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952939052] [2024-11-16 18:06:43,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [952939052] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:06:43,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:06:43,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 18:06:43,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761682980] [2024-11-16 18:06:43,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:06:43,589 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 18:06:43,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:06:43,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 18:06:43,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 18:06:43,607 INFO L87 Difference]: Start difference. First operand has 62 states, 36 states have (on average 1.2777777777777777) internal successors, (46), 37 states have internal predecessors, (46), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) Second operand has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-16 18:06:43,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:06:43,629 INFO L93 Difference]: Finished difference Result 116 states and 200 transitions. [2024-11-16 18:06:43,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 18:06:43,631 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) Word has length 141 [2024-11-16 18:06:43,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:06:43,636 INFO L225 Difference]: With dead ends: 116 [2024-11-16 18:06:43,637 INFO L226 Difference]: Without dead ends: 57 [2024-11-16 18:06:43,639 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 18:06:43,641 INFO L432 NwaCegarLoop]: 84 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 18:06:43,642 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 18:06:43,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2024-11-16 18:06:43,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2024-11-16 18:06:43,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 32 states have (on average 1.1875) internal successors, (38), 32 states have internal predecessors, (38), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-16 18:06:43,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 84 transitions. [2024-11-16 18:06:43,674 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 84 transitions. Word has length 141 [2024-11-16 18:06:43,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:06:43,674 INFO L471 AbstractCegarLoop]: Abstraction has 57 states and 84 transitions. [2024-11-16 18:06:43,675 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-16 18:06:43,675 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 84 transitions. [2024-11-16 18:06:43,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-16 18:06:43,679 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:06:43,679 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:06:43,679 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 18:06:43,679 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:06:43,680 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:06:43,680 INFO L85 PathProgramCache]: Analyzing trace with hash -1956242532, now seen corresponding path program 1 times [2024-11-16 18:06:43,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:06:43,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348562997] [2024-11-16 18:06:43,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:06:43,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:06:43,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:06:47,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:06:47,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:06:47,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 18:06:48,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:06:48,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 18:06:48,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:06:48,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 18:06:48,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:06:48,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 18:06:48,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:06:48,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 18:06:48,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:06:48,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 18:06:48,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:06:48,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 18:06:48,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:06:48,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 18:06:48,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:06:48,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 18:06:48,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:06:48,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 18:06:48,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:06:48,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:06:48,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:06:48,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:06:48,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:06:48,017 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 18:06:48,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:06:48,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 18:06:48,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:06:48,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 18:06:48,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:06:48,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-16 18:06:48,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:06:48,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-16 18:06:48,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:06:48,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 18:06:48,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:06:48,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-16 18:06:48,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:06:48,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-16 18:06:48,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:06:48,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-16 18:06:48,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:06:48,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-16 18:06:48,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:06:48,034 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-16 18:06:48,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:06:48,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348562997] [2024-11-16 18:06:48,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [348562997] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:06:48,034 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:06:48,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 18:06:48,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332755847] [2024-11-16 18:06:48,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:06:48,036 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 18:06:48,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:06:48,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 18:06:48,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-16 18:06:48,039 INFO L87 Difference]: Start difference. First operand 57 states and 84 transitions. Second operand has 9 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 9 states have internal predecessors, (29), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-16 18:06:49,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:06:49,644 INFO L93 Difference]: Finished difference Result 112 states and 147 transitions. [2024-11-16 18:06:49,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-16 18:06:49,645 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 9 states have internal predecessors, (29), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 141 [2024-11-16 18:06:49,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:06:49,647 INFO L225 Difference]: With dead ends: 112 [2024-11-16 18:06:49,647 INFO L226 Difference]: Without dead ends: 109 [2024-11-16 18:06:49,647 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2024-11-16 18:06:49,648 INFO L432 NwaCegarLoop]: 84 mSDtfsCounter, 113 mSDsluCounter, 254 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 338 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 18:06:49,648 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 338 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 18:06:49,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2024-11-16 18:06:49,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 72. [2024-11-16 18:06:49,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 44 states have (on average 1.1818181818181819) internal successors, (52), 45 states have internal predecessors, (52), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-16 18:06:49,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 102 transitions. [2024-11-16 18:06:49,666 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 102 transitions. Word has length 141 [2024-11-16 18:06:49,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:06:49,666 INFO L471 AbstractCegarLoop]: Abstraction has 72 states and 102 transitions. [2024-11-16 18:06:49,667 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 9 states have internal predecessors, (29), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-16 18:06:49,667 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 102 transitions. [2024-11-16 18:06:49,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-16 18:06:49,670 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:06:49,670 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:06:49,670 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 18:06:49,671 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:06:49,671 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:06:49,671 INFO L85 PathProgramCache]: Analyzing trace with hash 531270301, now seen corresponding path program 1 times [2024-11-16 18:06:49,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:06:49,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756354087] [2024-11-16 18:06:49,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:06:49,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:06:49,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:06:52,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:06:52,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:06:52,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 18:06:52,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:06:52,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 18:06:52,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:06:52,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 18:06:52,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:06:52,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 18:06:52,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:06:52,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 18:06:52,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:06:52,468 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 18:06:52,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:06:52,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 18:06:52,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:06:52,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 18:06:52,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:06:52,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 18:06:52,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:06:52,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 18:06:52,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:06:52,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:06:52,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:06:52,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:06:52,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:06:52,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 18:06:52,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:06:52,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 18:06:52,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:06:52,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 18:06:52,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:06:52,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-16 18:06:52,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:06:52,484 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-16 18:06:52,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:06:52,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 18:06:52,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:06:52,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-16 18:06:52,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:06:52,490 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-16 18:06:52,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:06:52,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-16 18:06:52,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:06:52,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-16 18:06:52,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:06:52,494 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-16 18:06:52,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:06:52,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756354087] [2024-11-16 18:06:52,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1756354087] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:06:52,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:06:52,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 18:06:52,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699754342] [2024-11-16 18:06:52,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:06:52,497 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 18:06:52,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:06:52,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 18:06:52,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-16 18:06:52,498 INFO L87 Difference]: Start difference. First operand 72 states and 102 transitions. Second operand has 9 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 9 states have internal predecessors, (29), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-16 18:06:53,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:06:53,542 INFO L93 Difference]: Finished difference Result 119 states and 154 transitions. [2024-11-16 18:06:53,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-16 18:06:53,544 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 9 states have internal predecessors, (29), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 141 [2024-11-16 18:06:53,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:06:53,546 INFO L225 Difference]: With dead ends: 119 [2024-11-16 18:06:53,546 INFO L226 Difference]: Without dead ends: 116 [2024-11-16 18:06:53,546 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2024-11-16 18:06:53,553 INFO L432 NwaCegarLoop]: 88 mSDtfsCounter, 99 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 18:06:53,554 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 368 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 18:06:53,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2024-11-16 18:06:53,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 65. [2024-11-16 18:06:53,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 39 states have (on average 1.1794871794871795) internal successors, (46), 39 states have internal predecessors, (46), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-16 18:06:53,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 92 transitions. [2024-11-16 18:06:53,568 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 92 transitions. Word has length 141 [2024-11-16 18:06:53,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:06:53,569 INFO L471 AbstractCegarLoop]: Abstraction has 65 states and 92 transitions. [2024-11-16 18:06:53,569 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 9 states have internal predecessors, (29), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-16 18:06:53,569 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 92 transitions. [2024-11-16 18:06:53,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-16 18:06:53,571 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:06:53,571 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:06:53,571 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 18:06:53,571 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:06:53,575 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:06:53,576 INFO L85 PathProgramCache]: Analyzing trace with hash -2058637525, now seen corresponding path program 1 times [2024-11-16 18:06:53,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:06:53,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653290033] [2024-11-16 18:06:53,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:06:53,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:06:53,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:06:57,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:06:57,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:06:57,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 18:06:57,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:06:57,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 18:06:57,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:06:57,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 18:06:57,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:06:57,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 18:06:57,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:06:57,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 18:06:57,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:06:57,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 18:06:57,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:06:57,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 18:06:57,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:06:57,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 18:06:57,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:06:57,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 18:06:57,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:06:57,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 18:06:57,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:06:57,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:06:57,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:06:57,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:06:57,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:06:57,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 18:06:57,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:06:57,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 18:06:57,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:06:57,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 18:06:57,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:06:57,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-16 18:06:57,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:06:57,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-16 18:06:57,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:06:57,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 18:06:57,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:06:57,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-16 18:06:57,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:06:57,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-16 18:06:57,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:06:57,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-16 18:06:57,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:06:57,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-16 18:06:57,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:06:57,444 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-16 18:06:57,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:06:57,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653290033] [2024-11-16 18:06:57,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653290033] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:06:57,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:06:57,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-16 18:06:57,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005905671] [2024-11-16 18:06:57,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:06:57,446 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-16 18:06:57,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:06:57,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-16 18:06:57,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-16 18:06:57,447 INFO L87 Difference]: Start difference. First operand 65 states and 92 transitions. Second operand has 10 states, 10 states have (on average 3.0) internal successors, (30), 10 states have internal predecessors, (30), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-16 18:07:00,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:07:00,558 INFO L93 Difference]: Finished difference Result 139 states and 177 transitions. [2024-11-16 18:07:00,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-16 18:07:00,559 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.0) internal successors, (30), 10 states have internal predecessors, (30), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 142 [2024-11-16 18:07:00,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:07:00,560 INFO L225 Difference]: With dead ends: 139 [2024-11-16 18:07:00,561 INFO L226 Difference]: Without dead ends: 136 [2024-11-16 18:07:00,561 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=69, Invalid=141, Unknown=0, NotChecked=0, Total=210 [2024-11-16 18:07:00,562 INFO L432 NwaCegarLoop]: 95 mSDtfsCounter, 98 mSDsluCounter, 377 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 472 SdHoareTripleChecker+Invalid, 240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-16 18:07:00,562 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 472 Invalid, 240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-16 18:07:00,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2024-11-16 18:07:00,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 71. [2024-11-16 18:07:00,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 45 states have (on average 1.2666666666666666) internal successors, (57), 45 states have internal predecessors, (57), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-16 18:07:00,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 103 transitions. [2024-11-16 18:07:00,573 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 103 transitions. Word has length 142 [2024-11-16 18:07:00,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:07:00,573 INFO L471 AbstractCegarLoop]: Abstraction has 71 states and 103 transitions. [2024-11-16 18:07:00,573 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.0) internal successors, (30), 10 states have internal predecessors, (30), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-16 18:07:00,573 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 103 transitions. [2024-11-16 18:07:00,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-16 18:07:00,574 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:07:00,575 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:07:00,575 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 18:07:00,575 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:07:00,575 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:07:00,575 INFO L85 PathProgramCache]: Analyzing trace with hash -2087266676, now seen corresponding path program 1 times [2024-11-16 18:07:00,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:07:00,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661625325] [2024-11-16 18:07:00,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:07:00,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:07:00,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:07:04,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:07:04,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:07:04,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 18:07:04,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:07:04,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 18:07:04,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:07:04,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 18:07:04,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:07:04,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 18:07:04,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:07:04,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 18:07:04,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:07:04,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 18:07:04,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:07:04,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 18:07:04,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:07:04,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 18:07:04,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:07:04,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 18:07:04,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:07:04,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 18:07:04,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:07:04,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:07:04,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:07:04,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:07:04,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:07:04,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 18:07:04,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:07:04,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 18:07:04,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:07:04,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 18:07:04,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:07:04,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-16 18:07:04,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:07:04,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-16 18:07:04,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:07:04,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 18:07:04,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:07:04,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-16 18:07:04,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:07:04,705 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-16 18:07:04,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:07:04,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-16 18:07:04,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:07:04,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-16 18:07:04,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:07:04,708 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-16 18:07:04,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:07:04,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661625325] [2024-11-16 18:07:04,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [661625325] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:07:04,709 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:07:04,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-16 18:07:04,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053224424] [2024-11-16 18:07:04,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:07:04,709 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-16 18:07:04,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:07:04,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-16 18:07:04,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-16 18:07:04,710 INFO L87 Difference]: Start difference. First operand 71 states and 103 transitions. Second operand has 10 states, 10 states have (on average 3.0) internal successors, (30), 10 states have internal predecessors, (30), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-16 18:07:06,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:07:06,659 INFO L93 Difference]: Finished difference Result 124 states and 159 transitions. [2024-11-16 18:07:06,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-16 18:07:06,660 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.0) internal successors, (30), 10 states have internal predecessors, (30), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 142 [2024-11-16 18:07:06,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:07:06,661 INFO L225 Difference]: With dead ends: 124 [2024-11-16 18:07:06,661 INFO L226 Difference]: Without dead ends: 121 [2024-11-16 18:07:06,661 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2024-11-16 18:07:06,663 INFO L432 NwaCegarLoop]: 93 mSDtfsCounter, 82 mSDsluCounter, 326 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 419 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-16 18:07:06,664 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 419 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-16 18:07:06,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2024-11-16 18:07:06,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 72. [2024-11-16 18:07:06,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 46 states have (on average 1.2826086956521738) internal successors, (59), 46 states have internal predecessors, (59), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-16 18:07:06,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 105 transitions. [2024-11-16 18:07:06,678 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 105 transitions. Word has length 142 [2024-11-16 18:07:06,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:07:06,678 INFO L471 AbstractCegarLoop]: Abstraction has 72 states and 105 transitions. [2024-11-16 18:07:06,678 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.0) internal successors, (30), 10 states have internal predecessors, (30), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-16 18:07:06,678 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 105 transitions. [2024-11-16 18:07:06,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-16 18:07:06,680 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:07:06,680 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:07:06,680 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 18:07:06,680 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:07:06,680 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:07:06,680 INFO L85 PathProgramCache]: Analyzing trace with hash 514418189, now seen corresponding path program 1 times [2024-11-16 18:07:06,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:07:06,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13678916] [2024-11-16 18:07:06,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:07:06,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:07:06,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:07:13,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:07:13,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:07:13,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 18:07:13,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:07:13,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 18:07:13,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:07:13,214 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 18:07:13,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:07:13,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 18:07:13,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:07:13,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 18:07:13,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:07:13,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 18:07:13,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:07:13,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 18:07:13,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:07:13,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 18:07:13,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:07:13,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 18:07:13,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:07:13,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 18:07:13,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:07:13,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:07:13,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:07:13,222 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:07:13,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:07:13,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 18:07:13,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:07:13,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 18:07:13,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:07:13,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 18:07:13,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:07:13,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-16 18:07:13,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:07:13,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-16 18:07:13,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:07:13,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 18:07:13,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:07:13,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-16 18:07:13,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:07:13,231 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-16 18:07:13,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:07:13,231 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-16 18:07:13,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:07:13,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-16 18:07:13,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:07:13,234 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-16 18:07:13,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:07:13,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13678916] [2024-11-16 18:07:13,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13678916] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:07:13,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:07:13,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-16 18:07:13,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935950460] [2024-11-16 18:07:13,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:07:13,236 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-16 18:07:13,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:07:13,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-16 18:07:13,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-11-16 18:07:13,237 INFO L87 Difference]: Start difference. First operand 72 states and 105 transitions. Second operand has 10 states, 10 states have (on average 3.0) internal successors, (30), 10 states have internal predecessors, (30), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-16 18:07:16,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:07:16,079 INFO L93 Difference]: Finished difference Result 134 states and 171 transitions. [2024-11-16 18:07:16,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-16 18:07:16,079 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.0) internal successors, (30), 10 states have internal predecessors, (30), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 142 [2024-11-16 18:07:16,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:07:16,081 INFO L225 Difference]: With dead ends: 134 [2024-11-16 18:07:16,081 INFO L226 Difference]: Without dead ends: 131 [2024-11-16 18:07:16,081 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2024-11-16 18:07:16,082 INFO L432 NwaCegarLoop]: 97 mSDtfsCounter, 105 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-16 18:07:16,082 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 388 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-16 18:07:16,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2024-11-16 18:07:16,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 73. [2024-11-16 18:07:16,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 47 states have (on average 1.297872340425532) internal successors, (61), 47 states have internal predecessors, (61), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-16 18:07:16,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 107 transitions. [2024-11-16 18:07:16,092 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 107 transitions. Word has length 142 [2024-11-16 18:07:16,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:07:16,092 INFO L471 AbstractCegarLoop]: Abstraction has 73 states and 107 transitions. [2024-11-16 18:07:16,093 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.0) internal successors, (30), 10 states have internal predecessors, (30), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-16 18:07:16,093 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 107 transitions. [2024-11-16 18:07:16,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-16 18:07:16,094 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:07:16,094 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:07:16,094 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 18:07:16,094 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:07:16,094 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:07:16,094 INFO L85 PathProgramCache]: Analyzing trace with hash 1401921870, now seen corresponding path program 1 times [2024-11-16 18:07:16,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:07:16,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334320155] [2024-11-16 18:07:16,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:07:16,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:07:16,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat