./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-52.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-52.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b4834357d23aac5c2a51d001b1c25f4722c265308db77262bd19157b1e0789ed --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 14:23:55,774 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 14:23:55,847 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 14:23:55,854 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 14:23:55,856 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 14:23:55,884 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 14:23:55,886 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 14:23:55,887 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 14:23:55,888 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 14:23:55,889 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 14:23:55,890 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 14:23:55,890 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 14:23:55,891 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 14:23:55,892 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 14:23:55,893 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 14:23:55,893 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 14:23:55,893 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 14:23:55,897 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 14:23:55,898 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 14:23:55,898 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 14:23:55,898 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 14:23:55,899 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 14:23:55,899 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 14:23:55,899 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 14:23:55,899 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 14:23:55,899 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 14:23:55,900 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 14:23:55,900 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 14:23:55,900 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 14:23:55,900 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 14:23:55,902 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 14:23:55,902 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 14:23:55,902 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 14:23:55,902 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 14:23:55,902 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 14:23:55,903 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 14:23:55,903 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 14:23:55,903 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 14:23:55,903 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 14:23:55,904 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 14:23:55,904 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 14:23:55,904 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 14:23:55,904 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b4834357d23aac5c2a51d001b1c25f4722c265308db77262bd19157b1e0789ed [2024-11-16 14:23:56,178 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 14:23:56,202 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 14:23:56,205 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 14:23:56,206 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 14:23:56,207 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 14:23:56,209 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-52.i [2024-11-16 14:23:57,683 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 14:23:57,941 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 14:23:57,941 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-52.i [2024-11-16 14:23:57,950 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f80e95dc7/55b4e2b3bfa34800a1b6f8f849c466c8/FLAG39fcd912f [2024-11-16 14:23:57,968 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f80e95dc7/55b4e2b3bfa34800a1b6f8f849c466c8 [2024-11-16 14:23:57,973 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 14:23:57,975 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 14:23:57,977 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 14:23:57,978 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 14:23:57,983 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 14:23:57,985 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 02:23:57" (1/1) ... [2024-11-16 14:23:57,986 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@99faf21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:23:57, skipping insertion in model container [2024-11-16 14:23:57,986 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 02:23:57" (1/1) ... [2024-11-16 14:23:58,028 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 14:23:58,226 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-52.i[919,932] [2024-11-16 14:23:58,299 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 14:23:58,313 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 14:23:58,325 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-52.i[919,932] [2024-11-16 14:23:58,355 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 14:23:58,382 INFO L204 MainTranslator]: Completed translation [2024-11-16 14:23:58,383 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:23:58 WrapperNode [2024-11-16 14:23:58,383 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 14:23:58,384 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 14:23:58,385 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 14:23:58,385 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 14:23:58,393 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:23:58" (1/1) ... [2024-11-16 14:23:58,408 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:23:58" (1/1) ... [2024-11-16 14:23:58,449 INFO L138 Inliner]: procedures = 26, calls = 30, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 192 [2024-11-16 14:23:58,452 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 14:23:58,453 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 14:23:58,453 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 14:23:58,453 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 14:23:58,468 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:23:58" (1/1) ... [2024-11-16 14:23:58,469 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:23:58" (1/1) ... [2024-11-16 14:23:58,472 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:23:58" (1/1) ... [2024-11-16 14:23:58,519 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-16 14:23:58,523 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:23:58" (1/1) ... [2024-11-16 14:23:58,523 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:23:58" (1/1) ... [2024-11-16 14:23:58,536 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:23:58" (1/1) ... [2024-11-16 14:23:58,537 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:23:58" (1/1) ... [2024-11-16 14:23:58,539 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:23:58" (1/1) ... [2024-11-16 14:23:58,541 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:23:58" (1/1) ... [2024-11-16 14:23:58,545 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 14:23:58,546 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 14:23:58,546 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 14:23:58,546 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 14:23:58,547 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:23:58" (1/1) ... [2024-11-16 14:23:58,557 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 14:23:58,568 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 14:23:58,599 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-16 14:23:58,614 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-16 14:23:58,660 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 14:23:58,660 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-16 14:23:58,660 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-16 14:23:58,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 14:23:58,660 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 14:23:58,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 14:23:58,736 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 14:23:58,738 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 14:23:59,201 INFO L? ?]: Removed 22 outVars from TransFormulas that were not future-live. [2024-11-16 14:23:59,201 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 14:23:59,239 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 14:23:59,239 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 14:23:59,240 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 02:23:59 BoogieIcfgContainer [2024-11-16 14:23:59,240 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 14:23:59,242 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 14:23:59,242 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 14:23:59,249 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 14:23:59,250 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 02:23:57" (1/3) ... [2024-11-16 14:23:59,251 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f5668c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 02:23:59, skipping insertion in model container [2024-11-16 14:23:59,252 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:23:58" (2/3) ... [2024-11-16 14:23:59,252 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f5668c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 02:23:59, skipping insertion in model container [2024-11-16 14:23:59,252 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 02:23:59" (3/3) ... [2024-11-16 14:23:59,254 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pr-ci_file-52.i [2024-11-16 14:23:59,268 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 14:23:59,268 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 14:23:59,331 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 14:23:59,341 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;@4acd4650, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 14:23:59,341 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 14:23:59,346 INFO L276 IsEmpty]: Start isEmpty. Operand has 83 states, 63 states have (on average 1.4603174603174602) internal successors, (92), 64 states have internal predecessors, (92), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-16 14:23:59,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-16 14:23:59,363 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 14:23:59,364 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 14:23:59,365 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 14:23:59,370 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 14:23:59,371 INFO L85 PathProgramCache]: Analyzing trace with hash -701558521, now seen corresponding path program 1 times [2024-11-16 14:23:59,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 14:23:59,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911510794] [2024-11-16 14:23:59,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 14:23:59,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 14:23:59,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:59,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 14:23:59,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:59,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 14:23:59,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:59,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 14:23:59,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:59,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 14:23:59,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:59,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 14:23:59,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:59,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 14:23:59,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:59,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 14:23:59,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:59,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 14:23:59,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:59,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 14:23:59,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:59,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 14:23:59,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:59,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 14:23:59,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:59,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 14:23:59,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:59,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 14:23:59,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:59,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 14:23:59,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:59,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 14:23:59,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:59,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-16 14:23:59,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:59,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-16 14:23:59,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:23:59,861 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-16 14:23:59,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 14:23:59,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911510794] [2024-11-16 14:23:59,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [911510794] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 14:23:59,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 14:23:59,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 14:23:59,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712215779] [2024-11-16 14:23:59,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 14:23:59,873 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 14:23:59,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 14:23:59,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 14:23:59,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 14:23:59,903 INFO L87 Difference]: Start difference. First operand has 83 states, 63 states have (on average 1.4603174603174602) internal successors, (92), 64 states have internal predecessors, (92), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-16 14:23:59,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 14:23:59,949 INFO L93 Difference]: Finished difference Result 158 states and 262 transitions. [2024-11-16 14:23:59,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 14:23:59,952 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 127 [2024-11-16 14:23:59,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 14:23:59,963 INFO L225 Difference]: With dead ends: 158 [2024-11-16 14:23:59,964 INFO L226 Difference]: Without dead ends: 78 [2024-11-16 14:23:59,968 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 14:23:59,972 INFO L432 NwaCegarLoop]: 115 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 14:23:59,974 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 115 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 14:23:59,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2024-11-16 14:24:00,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2024-11-16 14:24:00,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 59 states have (on average 1.423728813559322) internal successors, (84), 59 states have internal predecessors, (84), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-16 14:24:00,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 118 transitions. [2024-11-16 14:24:00,022 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 118 transitions. Word has length 127 [2024-11-16 14:24:00,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 14:24:00,023 INFO L471 AbstractCegarLoop]: Abstraction has 78 states and 118 transitions. [2024-11-16 14:24:00,023 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-16 14:24:00,024 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 118 transitions. [2024-11-16 14:24:00,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-16 14:24:00,027 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 14:24:00,027 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 14:24:00,028 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 14:24:00,028 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 14:24:00,029 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 14:24:00,029 INFO L85 PathProgramCache]: Analyzing trace with hash 137269636, now seen corresponding path program 1 times [2024-11-16 14:24:00,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 14:24:00,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106160325] [2024-11-16 14:24:00,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 14:24:00,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 14:24:00,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:00,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 14:24:00,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:00,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 14:24:00,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:00,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 14:24:00,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:00,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 14:24:00,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:00,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 14:24:00,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:00,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 14:24:00,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:00,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 14:24:00,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:00,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 14:24:00,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:00,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 14:24:00,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:00,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 14:24:00,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:00,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 14:24:00,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:00,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 14:24:00,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:00,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 14:24:00,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:00,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 14:24:00,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:00,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 14:24:00,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:00,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-16 14:24:00,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:00,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-16 14:24:00,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:00,469 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-16 14:24:00,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 14:24:00,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106160325] [2024-11-16 14:24:00,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [106160325] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 14:24:00,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 14:24:00,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 14:24:00,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427496747] [2024-11-16 14:24:00,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 14:24:00,472 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 14:24:00,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 14:24:00,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 14:24:00,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 14:24:00,476 INFO L87 Difference]: Start difference. First operand 78 states and 118 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-16 14:24:00,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 14:24:00,612 INFO L93 Difference]: Finished difference Result 190 states and 290 transitions. [2024-11-16 14:24:00,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 14:24:00,615 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 127 [2024-11-16 14:24:00,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 14:24:00,617 INFO L225 Difference]: With dead ends: 190 [2024-11-16 14:24:00,617 INFO L226 Difference]: Without dead ends: 115 [2024-11-16 14:24:00,619 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 14:24:00,620 INFO L432 NwaCegarLoop]: 110 mSDtfsCounter, 43 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 14:24:00,621 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 195 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 14:24:00,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2024-11-16 14:24:00,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 99. [2024-11-16 14:24:00,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 80 states have (on average 1.5) internal successors, (120), 80 states have internal predecessors, (120), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-16 14:24:00,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 154 transitions. [2024-11-16 14:24:00,641 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 154 transitions. Word has length 127 [2024-11-16 14:24:00,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 14:24:00,642 INFO L471 AbstractCegarLoop]: Abstraction has 99 states and 154 transitions. [2024-11-16 14:24:00,643 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-16 14:24:00,643 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 154 transitions. [2024-11-16 14:24:00,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-16 14:24:00,645 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 14:24:00,645 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 14:24:00,645 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 14:24:00,645 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 14:24:00,646 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 14:24:00,646 INFO L85 PathProgramCache]: Analyzing trace with hash -120994616, now seen corresponding path program 1 times [2024-11-16 14:24:00,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 14:24:00,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067600297] [2024-11-16 14:24:00,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 14:24:00,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 14:24:00,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:01,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 14:24:01,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:01,156 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 14:24:01,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:01,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 14:24:01,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:01,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 14:24:01,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:01,174 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 14:24:01,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:01,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 14:24:01,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:01,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 14:24:01,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:01,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 14:24:01,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:01,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 14:24:01,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:01,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 14:24:01,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:01,202 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 14:24:01,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:01,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 14:24:01,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:01,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 14:24:01,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:01,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 14:24:01,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:01,222 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 14:24:01,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:01,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-16 14:24:01,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:01,233 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-16 14:24:01,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:01,238 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-16 14:24:01,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 14:24:01,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067600297] [2024-11-16 14:24:01,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1067600297] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 14:24:01,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 14:24:01,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 14:24:01,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988867863] [2024-11-16 14:24:01,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 14:24:01,242 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 14:24:01,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 14:24:01,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 14:24:01,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-16 14:24:01,244 INFO L87 Difference]: Start difference. First operand 99 states and 154 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-16 14:24:01,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 14:24:01,705 INFO L93 Difference]: Finished difference Result 331 states and 511 transitions. [2024-11-16 14:24:01,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 14:24:01,706 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 128 [2024-11-16 14:24:01,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 14:24:01,709 INFO L225 Difference]: With dead ends: 331 [2024-11-16 14:24:01,709 INFO L226 Difference]: Without dead ends: 235 [2024-11-16 14:24:01,713 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-16 14:24:01,716 INFO L432 NwaCegarLoop]: 239 mSDtfsCounter, 273 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 273 SdHoareTripleChecker+Valid, 538 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 14:24:01,717 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [273 Valid, 538 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 14:24:01,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2024-11-16 14:24:01,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 144. [2024-11-16 14:24:01,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 125 states have (on average 1.552) internal successors, (194), 125 states have internal predecessors, (194), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-16 14:24:01,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 228 transitions. [2024-11-16 14:24:01,744 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 228 transitions. Word has length 128 [2024-11-16 14:24:01,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 14:24:01,745 INFO L471 AbstractCegarLoop]: Abstraction has 144 states and 228 transitions. [2024-11-16 14:24:01,745 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-16 14:24:01,746 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 228 transitions. [2024-11-16 14:24:01,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-16 14:24:01,748 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 14:24:01,748 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 14:24:01,749 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 14:24:01,749 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 14:24:01,749 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 14:24:01,750 INFO L85 PathProgramCache]: Analyzing trace with hash -1118066969, now seen corresponding path program 1 times [2024-11-16 14:24:01,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 14:24:01,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747222534] [2024-11-16 14:24:01,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 14:24:01,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 14:24:01,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:02,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 14:24:02,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:02,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 14:24:02,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:02,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 14:24:02,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:02,054 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 14:24:02,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:02,060 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 14:24:02,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:02,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 14:24:02,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:02,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 14:24:02,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:02,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 14:24:02,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:02,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 14:24:02,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:02,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 14:24:02,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:02,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 14:24:02,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:02,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 14:24:02,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:02,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 14:24:02,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:02,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 14:24:02,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:02,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 14:24:02,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:02,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-16 14:24:02,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:02,097 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-16 14:24:02,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:02,102 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-16 14:24:02,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 14:24:02,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747222534] [2024-11-16 14:24:02,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1747222534] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 14:24:02,103 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 14:24:02,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 14:24:02,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083939041] [2024-11-16 14:24:02,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 14:24:02,104 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 14:24:02,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 14:24:02,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 14:24:02,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 14:24:02,104 INFO L87 Difference]: Start difference. First operand 144 states and 228 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-16 14:24:02,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 14:24:02,382 INFO L93 Difference]: Finished difference Result 335 states and 522 transitions. [2024-11-16 14:24:02,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 14:24:02,383 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 128 [2024-11-16 14:24:02,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 14:24:02,385 INFO L225 Difference]: With dead ends: 335 [2024-11-16 14:24:02,385 INFO L226 Difference]: Without dead ends: 194 [2024-11-16 14:24:02,386 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-16 14:24:02,387 INFO L432 NwaCegarLoop]: 200 mSDtfsCounter, 190 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 505 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 14:24:02,388 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [190 Valid, 505 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 14:24:02,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2024-11-16 14:24:02,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 144. [2024-11-16 14:24:02,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 125 states have (on average 1.544) internal successors, (193), 125 states have internal predecessors, (193), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-16 14:24:02,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 227 transitions. [2024-11-16 14:24:02,398 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 227 transitions. Word has length 128 [2024-11-16 14:24:02,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 14:24:02,399 INFO L471 AbstractCegarLoop]: Abstraction has 144 states and 227 transitions. [2024-11-16 14:24:02,399 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-16 14:24:02,399 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 227 transitions. [2024-11-16 14:24:02,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-16 14:24:02,401 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 14:24:02,402 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 14:24:02,402 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 14:24:02,402 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 14:24:02,402 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 14:24:02,403 INFO L85 PathProgramCache]: Analyzing trace with hash 1335356103, now seen corresponding path program 1 times [2024-11-16 14:24:02,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 14:24:02,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791494889] [2024-11-16 14:24:02,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 14:24:02,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 14:24:02,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:03,313 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 14:24:03,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:03,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 14:24:03,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:03,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 14:24:03,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:03,325 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 14:24:03,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:03,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 14:24:03,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:03,333 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 14:24:03,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:03,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 14:24:03,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:03,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 14:24:03,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:03,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 14:24:03,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:03,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 14:24:03,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:03,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 14:24:03,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:03,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 14:24:03,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:03,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 14:24:03,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:03,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 14:24:03,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:03,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 14:24:03,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:03,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-16 14:24:03,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:03,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-16 14:24:03,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:03,403 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-16 14:24:03,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 14:24:03,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791494889] [2024-11-16 14:24:03,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791494889] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 14:24:03,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 14:24:03,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 14:24:03,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867960151] [2024-11-16 14:24:03,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 14:24:03,405 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 14:24:03,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 14:24:03,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 14:24:03,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 14:24:03,406 INFO L87 Difference]: Start difference. First operand 144 states and 227 transitions. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-16 14:24:03,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 14:24:03,660 INFO L93 Difference]: Finished difference Result 463 states and 729 transitions. [2024-11-16 14:24:03,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 14:24:03,661 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 128 [2024-11-16 14:24:03,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 14:24:03,664 INFO L225 Difference]: With dead ends: 463 [2024-11-16 14:24:03,664 INFO L226 Difference]: Without dead ends: 322 [2024-11-16 14:24:03,665 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 14:24:03,665 INFO L432 NwaCegarLoop]: 156 mSDtfsCounter, 158 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 314 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 14:24:03,666 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 314 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 14:24:03,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2024-11-16 14:24:03,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 282. [2024-11-16 14:24:03,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 245 states have (on average 1.5387755102040817) internal successors, (377), 245 states have internal predecessors, (377), 34 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-16 14:24:03,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 445 transitions. [2024-11-16 14:24:03,697 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 445 transitions. Word has length 128 [2024-11-16 14:24:03,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 14:24:03,697 INFO L471 AbstractCegarLoop]: Abstraction has 282 states and 445 transitions. [2024-11-16 14:24:03,698 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-16 14:24:03,698 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 445 transitions. [2024-11-16 14:24:03,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-16 14:24:03,704 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 14:24:03,704 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 14:24:03,704 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 14:24:03,704 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 14:24:03,705 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 14:24:03,705 INFO L85 PathProgramCache]: Analyzing trace with hash 736575518, now seen corresponding path program 1 times [2024-11-16 14:24:03,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 14:24:03,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727679683] [2024-11-16 14:24:03,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 14:24:03,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 14:24:03,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:16,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 14:24:16,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:16,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 14:24:16,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:16,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 14:24:16,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:16,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 14:24:16,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:16,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 14:24:16,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:16,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 14:24:16,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:16,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 14:24:16,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:16,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 14:24:16,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:16,991 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 14:24:16,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:17,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 14:24:17,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:17,067 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 14:24:17,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:17,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 14:24:17,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:17,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 14:24:17,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:17,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 14:24:17,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:17,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 14:24:17,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:17,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-16 14:24:17,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:17,291 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-16 14:24:17,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:17,330 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-16 14:24:17,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 14:24:17,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727679683] [2024-11-16 14:24:17,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727679683] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 14:24:17,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 14:24:17,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-11-16 14:24:17,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823470912] [2024-11-16 14:24:17,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 14:24:17,332 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-16 14:24:17,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 14:24:17,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-16 14:24:17,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2024-11-16 14:24:17,333 INFO L87 Difference]: Start difference. First operand 282 states and 445 transitions. Second operand has 18 states, 18 states have (on average 2.6666666666666665) internal successors, (48), 18 states have internal predecessors, (48), 5 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 4 states have call predecessors, (17), 5 states have call successors, (17) [2024-11-16 14:24:20,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 14:24:20,144 INFO L93 Difference]: Finished difference Result 869 states and 1336 transitions. [2024-11-16 14:24:20,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-16 14:24:20,145 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.6666666666666665) internal successors, (48), 18 states have internal predecessors, (48), 5 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 4 states have call predecessors, (17), 5 states have call successors, (17) Word has length 130 [2024-11-16 14:24:20,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 14:24:20,149 INFO L225 Difference]: With dead ends: 869 [2024-11-16 14:24:20,149 INFO L226 Difference]: Without dead ends: 590 [2024-11-16 14:24:20,152 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=156, Invalid=494, Unknown=0, NotChecked=0, Total=650 [2024-11-16 14:24:20,154 INFO L432 NwaCegarLoop]: 124 mSDtfsCounter, 606 mSDsluCounter, 639 mSDsCounter, 0 mSdLazyCounter, 1150 mSolverCounterSat, 130 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 606 SdHoareTripleChecker+Valid, 763 SdHoareTripleChecker+Invalid, 1280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 130 IncrementalHoareTripleChecker+Valid, 1150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-16 14:24:20,154 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [606 Valid, 763 Invalid, 1280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [130 Valid, 1150 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-16 14:24:20,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 590 states. [2024-11-16 14:24:20,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 590 to 347. [2024-11-16 14:24:20,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 347 states, 292 states have (on average 1.4965753424657535) internal successors, (437), 292 states have internal predecessors, (437), 51 states have call successors, (51), 3 states have call predecessors, (51), 3 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2024-11-16 14:24:20,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 539 transitions. [2024-11-16 14:24:20,190 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 539 transitions. Word has length 130 [2024-11-16 14:24:20,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 14:24:20,190 INFO L471 AbstractCegarLoop]: Abstraction has 347 states and 539 transitions. [2024-11-16 14:24:20,191 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.6666666666666665) internal successors, (48), 18 states have internal predecessors, (48), 5 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 4 states have call predecessors, (17), 5 states have call successors, (17) [2024-11-16 14:24:20,191 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 539 transitions. [2024-11-16 14:24:20,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-16 14:24:20,193 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 14:24:20,193 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 14:24:20,193 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 14:24:20,193 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 14:24:20,194 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 14:24:20,194 INFO L85 PathProgramCache]: Analyzing trace with hash -260496835, now seen corresponding path program 1 times [2024-11-16 14:24:20,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 14:24:20,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118997456] [2024-11-16 14:24:20,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 14:24:20,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 14:24:20,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:20,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 14:24:20,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:20,373 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 14:24:20,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:20,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 14:24:20,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:20,376 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 14:24:20,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:20,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 14:24:20,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:20,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 14:24:20,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:20,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 14:24:20,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:20,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 14:24:20,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:20,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 14:24:20,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:20,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 14:24:20,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:20,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 14:24:20,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:20,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 14:24:20,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:20,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 14:24:20,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:20,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 14:24:20,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:20,395 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 14:24:20,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:20,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-16 14:24:20,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:20,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-16 14:24:20,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:20,400 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-16 14:24:20,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 14:24:20,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118997456] [2024-11-16 14:24:20,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118997456] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 14:24:20,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 14:24:20,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 14:24:20,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344320106] [2024-11-16 14:24:20,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 14:24:20,402 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 14:24:20,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 14:24:20,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 14:24:20,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 14:24:20,403 INFO L87 Difference]: Start difference. First operand 347 states and 539 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-16 14:24:20,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 14:24:20,761 INFO L93 Difference]: Finished difference Result 862 states and 1327 transitions. [2024-11-16 14:24:20,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 14:24:20,761 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 130 [2024-11-16 14:24:20,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 14:24:20,765 INFO L225 Difference]: With dead ends: 862 [2024-11-16 14:24:20,765 INFO L226 Difference]: Without dead ends: 583 [2024-11-16 14:24:20,766 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-16 14:24:20,767 INFO L432 NwaCegarLoop]: 274 mSDtfsCounter, 207 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 583 SdHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 14:24:20,767 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [207 Valid, 583 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 14:24:20,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 583 states. [2024-11-16 14:24:20,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 583 to 365. [2024-11-16 14:24:20,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365 states, 310 states have (on average 1.5129032258064516) internal successors, (469), 310 states have internal predecessors, (469), 51 states have call successors, (51), 3 states have call predecessors, (51), 3 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2024-11-16 14:24:20,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 571 transitions. [2024-11-16 14:24:20,790 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 571 transitions. Word has length 130 [2024-11-16 14:24:20,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 14:24:20,791 INFO L471 AbstractCegarLoop]: Abstraction has 365 states and 571 transitions. [2024-11-16 14:24:20,791 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-16 14:24:20,791 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 571 transitions. [2024-11-16 14:24:20,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-16 14:24:20,792 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 14:24:20,793 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 14:24:20,793 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 14:24:20,793 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 14:24:20,793 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 14:24:20,793 INFO L85 PathProgramCache]: Analyzing trace with hash -26673504, now seen corresponding path program 1 times [2024-11-16 14:24:20,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 14:24:20,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918752314] [2024-11-16 14:24:20,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 14:24:20,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 14:24:20,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:20,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 14:24:20,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:20,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 14:24:20,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:20,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 14:24:20,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:20,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 14:24:20,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:20,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 14:24:20,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:20,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 14:24:20,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:20,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 14:24:20,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:20,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 14:24:20,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:20,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 14:24:20,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:20,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 14:24:20,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:20,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 14:24:20,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:20,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 14:24:20,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:20,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 14:24:20,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:20,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 14:24:20,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:20,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 14:24:20,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:20,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-16 14:24:20,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:20,924 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-16 14:24:20,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:20,927 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-16 14:24:20,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 14:24:20,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918752314] [2024-11-16 14:24:20,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918752314] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 14:24:20,928 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 14:24:20,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 14:24:20,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621261703] [2024-11-16 14:24:20,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 14:24:20,928 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 14:24:20,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 14:24:20,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 14:24:20,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 14:24:20,930 INFO L87 Difference]: Start difference. First operand 365 states and 571 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-16 14:24:21,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 14:24:21,058 INFO L93 Difference]: Finished difference Result 560 states and 871 transitions. [2024-11-16 14:24:21,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 14:24:21,059 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 130 [2024-11-16 14:24:21,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 14:24:21,061 INFO L225 Difference]: With dead ends: 560 [2024-11-16 14:24:21,061 INFO L226 Difference]: Without dead ends: 263 [2024-11-16 14:24:21,061 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-16 14:24:21,063 INFO L432 NwaCegarLoop]: 94 mSDtfsCounter, 143 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 14:24:21,065 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 152 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 14:24:21,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2024-11-16 14:24:21,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 263. [2024-11-16 14:24:21,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 208 states have (on average 1.4038461538461537) internal successors, (292), 208 states have internal predecessors, (292), 51 states have call successors, (51), 3 states have call predecessors, (51), 3 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2024-11-16 14:24:21,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 394 transitions. [2024-11-16 14:24:21,087 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 394 transitions. Word has length 130 [2024-11-16 14:24:21,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 14:24:21,088 INFO L471 AbstractCegarLoop]: Abstraction has 263 states and 394 transitions. [2024-11-16 14:24:21,089 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-16 14:24:21,089 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 394 transitions. [2024-11-16 14:24:21,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-16 14:24:21,090 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 14:24:21,090 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 14:24:21,091 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 14:24:21,091 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 14:24:21,091 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 14:24:21,091 INFO L85 PathProgramCache]: Analyzing trace with hash -558327245, now seen corresponding path program 1 times [2024-11-16 14:24:21,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 14:24:21,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857469118] [2024-11-16 14:24:21,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 14:24:21,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 14:24:21,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:23,373 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 14:24:23,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:23,376 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 14:24:23,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:23,383 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 14:24:23,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:23,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 14:24:23,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:23,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 14:24:23,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:23,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 14:24:23,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:23,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 14:24:23,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:23,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 14:24:23,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:23,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 14:24:23,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:23,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 14:24:23,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:23,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 14:24:23,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:23,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 14:24:23,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:23,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 14:24:23,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:23,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 14:24:23,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:23,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 14:24:23,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:23,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-16 14:24:23,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:23,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-16 14:24:23,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:24:23,424 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-16 14:24:23,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 14:24:23,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857469118] [2024-11-16 14:24:23,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [857469118] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 14:24:23,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 14:24:23,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-16 14:24:23,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966713586] [2024-11-16 14:24:23,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 14:24:23,425 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-16 14:24:23,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 14:24:23,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-16 14:24:23,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-11-16 14:24:23,427 INFO L87 Difference]: Start difference. First operand 263 states and 394 transitions. Second operand has 10 states, 10 states have (on average 4.9) internal successors, (49), 10 states have internal predecessors, (49), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-16 14:24:24,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 14:24:24,077 INFO L93 Difference]: Finished difference Result 503 states and 735 transitions. [2024-11-16 14:24:24,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 14:24:24,078 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.9) internal successors, (49), 10 states have internal predecessors, (49), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 131 [2024-11-16 14:24:24,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 14:24:24,080 INFO L225 Difference]: With dead ends: 503 [2024-11-16 14:24:24,080 INFO L226 Difference]: Without dead ends: 290 [2024-11-16 14:24:24,080 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2024-11-16 14:24:24,084 INFO L432 NwaCegarLoop]: 85 mSDtfsCounter, 343 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 310 mSolverCounterSat, 121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 343 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 121 IncrementalHoareTripleChecker+Valid, 310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 14:24:24,084 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [343 Valid, 284 Invalid, 431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [121 Valid, 310 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 14:24:24,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2024-11-16 14:24:24,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 271. [2024-11-16 14:24:24,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 201 states have (on average 1.2487562189054726) internal successors, (251), 204 states have internal predecessors, (251), 63 states have call successors, (63), 6 states have call predecessors, (63), 6 states have return successors, (63), 60 states have call predecessors, (63), 63 states have call successors, (63) [2024-11-16 14:24:24,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 377 transitions. [2024-11-16 14:24:24,116 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 377 transitions. Word has length 131 [2024-11-16 14:24:24,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 14:24:24,118 INFO L471 AbstractCegarLoop]: Abstraction has 271 states and 377 transitions. [2024-11-16 14:24:24,118 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.9) internal successors, (49), 10 states have internal predecessors, (49), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-16 14:24:24,118 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 377 transitions. [2024-11-16 14:24:24,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-16 14:24:24,119 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 14:24:24,120 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 14:24:24,120 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 14:24:24,120 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 14:24:24,120 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 14:24:24,121 INFO L85 PathProgramCache]: Analyzing trace with hash -1454453930, now seen corresponding path program 1 times [2024-11-16 14:24:24,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 14:24:24,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818262181] [2024-11-16 14:24:24,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 14:24:24,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 14:24:24,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat