./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-63.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc 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_fillercodesize_ps-cn-500_file-63.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 ddb079fdd3784496be289fc7e9dce8b5519454d886eda78b14b11167cae45c0d --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 19:54:04,364 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 19:54:04,416 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 19:54:04,419 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 19:54:04,419 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 19:54:04,442 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 19:54:04,443 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 19:54:04,443 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 19:54:04,444 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 19:54:04,444 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 19:54:04,444 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 19:54:04,444 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 19:54:04,445 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 19:54:04,445 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 19:54:04,445 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 19:54:04,446 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 19:54:04,446 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 19:54:04,446 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 19:54:04,446 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 19:54:04,447 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 19:54:04,447 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 19:54:04,448 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 19:54:04,448 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 19:54:04,448 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 19:54:04,448 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 19:54:04,448 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 19:54:04,449 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 19:54:04,449 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 19:54:04,449 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 19:54:04,449 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 19:54:04,449 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 19:54:04,450 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 19:54:04,450 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 19:54:04,450 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 19:54:04,450 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 19:54:04,450 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 19:54:04,450 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 19:54:04,451 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 19:54:04,451 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 19:54:04,451 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 19:54:04,451 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 19:54:04,455 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 19:54:04,455 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ddb079fdd3784496be289fc7e9dce8b5519454d886eda78b14b11167cae45c0d [2024-11-18 19:54:04,662 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 19:54:04,682 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 19:54:04,684 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 19:54:04,685 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 19:54:04,689 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 19:54:04,691 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-63.i [2024-11-18 19:54:05,990 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 19:54:06,190 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 19:54:06,191 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-63.i [2024-11-18 19:54:06,206 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/abbbe0d05/cdaf1057f8bd4901b287dd1ecac30635/FLAG45a356d01 [2024-11-18 19:54:06,544 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/abbbe0d05/cdaf1057f8bd4901b287dd1ecac30635 [2024-11-18 19:54:06,546 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 19:54:06,547 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 19:54:06,548 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 19:54:06,549 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 19:54:06,553 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 19:54:06,553 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:54:06" (1/1) ... [2024-11-18 19:54:06,554 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3627a30c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:54:06, skipping insertion in model container [2024-11-18 19:54:06,554 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:54:06" (1/1) ... [2024-11-18 19:54:06,592 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 19:54:06,776 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_fillercodesize_ps-cn-500_file-63.i[916,929] [2024-11-18 19:54:06,946 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 19:54:06,969 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 19:54:06,980 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-63.i[916,929] [2024-11-18 19:54:07,047 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 19:54:07,071 INFO L204 MainTranslator]: Completed translation [2024-11-18 19:54:07,072 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:54:07 WrapperNode [2024-11-18 19:54:07,072 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 19:54:07,073 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 19:54:07,074 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 19:54:07,074 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 19:54:07,081 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:54:07" (1/1) ... [2024-11-18 19:54:07,109 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:54:07" (1/1) ... [2024-11-18 19:54:07,198 INFO L138 Inliner]: procedures = 26, calls = 109, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 917 [2024-11-18 19:54:07,199 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 19:54:07,199 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 19:54:07,199 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 19:54:07,199 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 19:54:07,208 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:54:07" (1/1) ... [2024-11-18 19:54:07,209 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:54:07" (1/1) ... [2024-11-18 19:54:07,223 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:54:07" (1/1) ... [2024-11-18 19:54:07,270 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]. [2024-11-18 19:54:07,271 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:54:07" (1/1) ... [2024-11-18 19:54:07,271 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:54:07" (1/1) ... [2024-11-18 19:54:07,302 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:54:07" (1/1) ... [2024-11-18 19:54:07,317 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:54:07" (1/1) ... [2024-11-18 19:54:07,330 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:54:07" (1/1) ... [2024-11-18 19:54:07,335 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:54:07" (1/1) ... [2024-11-18 19:54:07,347 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 19:54:07,349 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 19:54:07,349 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 19:54:07,349 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 19:54:07,350 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:54:07" (1/1) ... [2024-11-18 19:54:07,355 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 19:54:07,371 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 19:54:07,387 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) [2024-11-18 19:54:07,392 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 [2024-11-18 19:54:07,442 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 19:54:07,442 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-18 19:54:07,443 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-18 19:54:07,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 19:54:07,444 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 19:54:07,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 19:54:07,585 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 19:54:07,587 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 19:54:08,782 INFO L? ?]: Removed 23 outVars from TransFormulas that were not future-live. [2024-11-18 19:54:08,782 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 19:54:08,797 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 19:54:08,798 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-18 19:54:08,798 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:54:08 BoogieIcfgContainer [2024-11-18 19:54:08,798 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 19:54:08,799 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 19:54:08,800 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 19:54:08,802 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 19:54:08,803 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 07:54:06" (1/3) ... [2024-11-18 19:54:08,803 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2636c235 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:54:08, skipping insertion in model container [2024-11-18 19:54:08,803 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:54:07" (2/3) ... [2024-11-18 19:54:08,803 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2636c235 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:54:08, skipping insertion in model container [2024-11-18 19:54:08,804 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:54:08" (3/3) ... [2024-11-18 19:54:08,805 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-500_file-63.i [2024-11-18 19:54:08,835 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 19:54:08,835 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 19:54:08,889 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 19:54:08,894 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;@16ff6c94, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 19:54:08,894 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 19:54:08,900 INFO L276 IsEmpty]: Start isEmpty. Operand has 368 states, 269 states have (on average 1.5947955390334572) internal successors, (429), 270 states have internal predecessors, (429), 96 states have call successors, (96), 1 states have call predecessors, (96), 1 states have return successors, (96), 96 states have call predecessors, (96), 96 states have call successors, (96) [2024-11-18 19:54:08,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 642 [2024-11-18 19:54:08,933 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:54:08,934 INFO L215 NwaCegarLoop]: trace histogram [96, 96, 96, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:54:08,935 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:54:08,939 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:54:08,940 INFO L85 PathProgramCache]: Analyzing trace with hash -1723170382, now seen corresponding path program 1 times [2024-11-18 19:54:08,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:54:08,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417526611] [2024-11-18 19:54:08,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:54:08,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:54:09,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:54:09,520 INFO L134 CoverageAnalysis]: Checked inductivity of 18240 backedges. 0 proven. 190 refuted. 0 times theorem prover too weak. 18050 trivial. 0 not checked. [2024-11-18 19:54:09,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:54:09,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417526611] [2024-11-18 19:54:09,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [417526611] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 19:54:09,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1533627476] [2024-11-18 19:54:09,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:54:09,523 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 19:54:09,524 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 19:54:09,525 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 19:54:09,527 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-18 19:54:09,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:54:09,876 INFO L255 TraceCheckSpWp]: Trace formula consists of 1498 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-18 19:54:09,904 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 19:54:09,971 INFO L134 CoverageAnalysis]: Checked inductivity of 18240 backedges. 190 proven. 0 refuted. 0 times theorem prover too weak. 18050 trivial. 0 not checked. [2024-11-18 19:54:09,971 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 19:54:09,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1533627476] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:54:09,972 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 19:54:09,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-18 19:54:09,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039511403] [2024-11-18 19:54:09,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:54:09,980 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-18 19:54:09,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:54:10,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-18 19:54:10,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 19:54:10,005 INFO L87 Difference]: Start difference. First operand has 368 states, 269 states have (on average 1.5947955390334572) internal successors, (429), 270 states have internal predecessors, (429), 96 states have call successors, (96), 1 states have call predecessors, (96), 1 states have return successors, (96), 96 states have call predecessors, (96), 96 states have call successors, (96) Second operand has 2 states, 2 states have (on average 83.0) internal successors, (166), 2 states have internal predecessors, (166), 2 states have call successors, (96), 2 states have call predecessors, (96), 1 states have return successors, (96), 1 states have call predecessors, (96), 2 states have call successors, (96) [2024-11-18 19:54:10,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:54:10,070 INFO L93 Difference]: Finished difference Result 728 states and 1330 transitions. [2024-11-18 19:54:10,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-18 19:54:10,073 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 83.0) internal successors, (166), 2 states have internal predecessors, (166), 2 states have call successors, (96), 2 states have call predecessors, (96), 1 states have return successors, (96), 1 states have call predecessors, (96), 2 states have call successors, (96) Word has length 641 [2024-11-18 19:54:10,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:54:10,083 INFO L225 Difference]: With dead ends: 728 [2024-11-18 19:54:10,084 INFO L226 Difference]: Without dead ends: 363 [2024-11-18 19:54:10,092 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 642 GetRequests, 642 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 19:54:10,096 INFO L432 NwaCegarLoop]: 607 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 607 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 19:54:10,098 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 607 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 19:54:10,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2024-11-18 19:54:10,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 363. [2024-11-18 19:54:10,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 363 states, 265 states have (on average 1.5660377358490567) internal successors, (415), 265 states have internal predecessors, (415), 96 states have call successors, (96), 1 states have call predecessors, (96), 1 states have return successors, (96), 96 states have call predecessors, (96), 96 states have call successors, (96) [2024-11-18 19:54:10,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 607 transitions. [2024-11-18 19:54:10,179 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 607 transitions. Word has length 641 [2024-11-18 19:54:10,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:54:10,179 INFO L471 AbstractCegarLoop]: Abstraction has 363 states and 607 transitions. [2024-11-18 19:54:10,180 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 83.0) internal successors, (166), 2 states have internal predecessors, (166), 2 states have call successors, (96), 2 states have call predecessors, (96), 1 states have return successors, (96), 1 states have call predecessors, (96), 2 states have call successors, (96) [2024-11-18 19:54:10,180 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 607 transitions. [2024-11-18 19:54:10,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 642 [2024-11-18 19:54:10,193 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:54:10,193 INFO L215 NwaCegarLoop]: trace histogram [96, 96, 96, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:54:10,209 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-18 19:54:10,397 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-18 19:54:10,398 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:54:10,399 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:54:10,399 INFO L85 PathProgramCache]: Analyzing trace with hash 1123633014, now seen corresponding path program 1 times [2024-11-18 19:54:10,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:54:10,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248755214] [2024-11-18 19:54:10,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:54:10,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:54:10,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:54:10,884 INFO L134 CoverageAnalysis]: Checked inductivity of 18240 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18240 trivial. 0 not checked. [2024-11-18 19:54:10,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:54:10,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248755214] [2024-11-18 19:54:10,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248755214] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:54:10,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:54:10,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 19:54:10,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942128817] [2024-11-18 19:54:10,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:54:10,891 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 19:54:10,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:54:10,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 19:54:10,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:54:10,895 INFO L87 Difference]: Start difference. First operand 363 states and 607 transitions. Second operand has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 1 states have call successors, (96), 1 states have call predecessors, (96), 1 states have return successors, (96), 1 states have call predecessors, (96), 1 states have call successors, (96) [2024-11-18 19:54:10,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:54:10,995 INFO L93 Difference]: Finished difference Result 965 states and 1616 transitions. [2024-11-18 19:54:10,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 19:54:10,996 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 1 states have call successors, (96), 1 states have call predecessors, (96), 1 states have return successors, (96), 1 states have call predecessors, (96), 1 states have call successors, (96) Word has length 641 [2024-11-18 19:54:10,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:54:11,003 INFO L225 Difference]: With dead ends: 965 [2024-11-18 19:54:11,004 INFO L226 Difference]: Without dead ends: 605 [2024-11-18 19:54:11,005 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:54:11,007 INFO L432 NwaCegarLoop]: 880 mSDtfsCounter, 396 mSDsluCounter, 588 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 396 SdHoareTripleChecker+Valid, 1468 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 19:54:11,008 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [396 Valid, 1468 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 19:54:11,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 605 states. [2024-11-18 19:54:11,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 605 to 602. [2024-11-18 19:54:11,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 602 states, 465 states have (on average 1.5870967741935484) internal successors, (738), 466 states have internal predecessors, (738), 134 states have call successors, (134), 2 states have call predecessors, (134), 2 states have return successors, (134), 133 states have call predecessors, (134), 134 states have call successors, (134) [2024-11-18 19:54:11,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 602 states to 602 states and 1006 transitions. [2024-11-18 19:54:11,067 INFO L78 Accepts]: Start accepts. Automaton has 602 states and 1006 transitions. Word has length 641 [2024-11-18 19:54:11,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:54:11,070 INFO L471 AbstractCegarLoop]: Abstraction has 602 states and 1006 transitions. [2024-11-18 19:54:11,071 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 1 states have call successors, (96), 1 states have call predecessors, (96), 1 states have return successors, (96), 1 states have call predecessors, (96), 1 states have call successors, (96) [2024-11-18 19:54:11,071 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states and 1006 transitions. [2024-11-18 19:54:11,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 642 [2024-11-18 19:54:11,077 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:54:11,077 INFO L215 NwaCegarLoop]: trace histogram [96, 96, 96, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:54:11,077 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 19:54:11,077 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:54:11,078 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:54:11,079 INFO L85 PathProgramCache]: Analyzing trace with hash 128939316, now seen corresponding path program 1 times [2024-11-18 19:54:11,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:54:11,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472322973] [2024-11-18 19:54:11,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:54:11,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:54:11,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:54:11,487 INFO L134 CoverageAnalysis]: Checked inductivity of 18240 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18240 trivial. 0 not checked. [2024-11-18 19:54:11,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:54:11,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472322973] [2024-11-18 19:54:11,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472322973] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:54:11,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:54:11,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 19:54:11,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125480735] [2024-11-18 19:54:11,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:54:11,490 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 19:54:11,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:54:11,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 19:54:11,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:54:11,492 INFO L87 Difference]: Start difference. First operand 602 states and 1006 transitions. Second operand has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 1 states have call successors, (96), 1 states have call predecessors, (96), 1 states have return successors, (96), 1 states have call predecessors, (96), 1 states have call successors, (96) [2024-11-18 19:54:11,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:54:11,527 INFO L93 Difference]: Finished difference Result 1203 states and 2013 transitions. [2024-11-18 19:54:11,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 19:54:11,530 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 1 states have call successors, (96), 1 states have call predecessors, (96), 1 states have return successors, (96), 1 states have call predecessors, (96), 1 states have call successors, (96) Word has length 641 [2024-11-18 19:54:11,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:54:11,537 INFO L225 Difference]: With dead ends: 1203 [2024-11-18 19:54:11,537 INFO L226 Difference]: Without dead ends: 604 [2024-11-18 19:54:11,539 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:54:11,540 INFO L432 NwaCegarLoop]: 606 mSDtfsCounter, 0 mSDsluCounter, 600 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1206 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 19:54:11,541 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1206 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 19:54:11,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 604 states. [2024-11-18 19:54:11,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 604 to 604. [2024-11-18 19:54:11,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 604 states, 467 states have (on average 1.5845824411134903) internal successors, (740), 468 states have internal predecessors, (740), 134 states have call successors, (134), 2 states have call predecessors, (134), 2 states have return successors, (134), 133 states have call predecessors, (134), 134 states have call successors, (134) [2024-11-18 19:54:11,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 604 states to 604 states and 1008 transitions. [2024-11-18 19:54:11,596 INFO L78 Accepts]: Start accepts. Automaton has 604 states and 1008 transitions. Word has length 641 [2024-11-18 19:54:11,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:54:11,601 INFO L471 AbstractCegarLoop]: Abstraction has 604 states and 1008 transitions. [2024-11-18 19:54:11,602 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 1 states have call successors, (96), 1 states have call predecessors, (96), 1 states have return successors, (96), 1 states have call predecessors, (96), 1 states have call successors, (96) [2024-11-18 19:54:11,602 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states and 1008 transitions. [2024-11-18 19:54:11,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 642 [2024-11-18 19:54:11,607 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:54:11,607 INFO L215 NwaCegarLoop]: trace histogram [96, 96, 96, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:54:11,608 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 19:54:11,608 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:54:11,609 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:54:11,609 INFO L85 PathProgramCache]: Analyzing trace with hash 562668402, now seen corresponding path program 1 times [2024-11-18 19:54:11,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:54:11,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616171346] [2024-11-18 19:54:11,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:54:11,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:54:11,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:54:11,868 INFO L134 CoverageAnalysis]: Checked inductivity of 18240 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18240 trivial. 0 not checked. [2024-11-18 19:54:11,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:54:11,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [616171346] [2024-11-18 19:54:11,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [616171346] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:54:11,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:54:11,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 19:54:11,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358384362] [2024-11-18 19:54:11,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:54:11,870 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 19:54:11,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:54:11,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 19:54:11,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:54:11,872 INFO L87 Difference]: Start difference. First operand 604 states and 1008 transitions. Second operand has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 1 states have call successors, (96), 1 states have call predecessors, (96), 1 states have return successors, (96), 1 states have call predecessors, (96), 1 states have call successors, (96) [2024-11-18 19:54:11,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:54:11,929 INFO L93 Difference]: Finished difference Result 1212 states and 2018 transitions. [2024-11-18 19:54:11,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 19:54:11,930 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 1 states have call successors, (96), 1 states have call predecessors, (96), 1 states have return successors, (96), 1 states have call predecessors, (96), 1 states have call successors, (96) Word has length 641 [2024-11-18 19:54:11,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:54:11,934 INFO L225 Difference]: With dead ends: 1212 [2024-11-18 19:54:11,934 INFO L226 Difference]: Without dead ends: 611 [2024-11-18 19:54:11,936 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:54:11,940 INFO L432 NwaCegarLoop]: 622 mSDtfsCounter, 358 mSDsluCounter, 588 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 358 SdHoareTripleChecker+Valid, 1210 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 19:54:11,942 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [358 Valid, 1210 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 19:54:11,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 611 states. [2024-11-18 19:54:11,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 611 to 481. [2024-11-18 19:54:11,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 481 states, 382 states have (on average 1.6073298429319371) internal successors, (614), 382 states have internal predecessors, (614), 96 states have call successors, (96), 2 states have call predecessors, (96), 2 states have return successors, (96), 96 states have call predecessors, (96), 96 states have call successors, (96) [2024-11-18 19:54:11,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 806 transitions. [2024-11-18 19:54:11,979 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 806 transitions. Word has length 641 [2024-11-18 19:54:11,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:54:11,982 INFO L471 AbstractCegarLoop]: Abstraction has 481 states and 806 transitions. [2024-11-18 19:54:11,983 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 1 states have call successors, (96), 1 states have call predecessors, (96), 1 states have return successors, (96), 1 states have call predecessors, (96), 1 states have call successors, (96) [2024-11-18 19:54:11,983 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 806 transitions. [2024-11-18 19:54:11,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 642 [2024-11-18 19:54:11,989 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:54:11,990 INFO L215 NwaCegarLoop]: trace histogram [96, 96, 96, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:54:11,990 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-18 19:54:11,990 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:54:11,990 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:54:11,991 INFO L85 PathProgramCache]: Analyzing trace with hash 810814896, now seen corresponding path program 1 times [2024-11-18 19:54:11,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:54:11,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790538862] [2024-11-18 19:54:11,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:54:11,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:54:12,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:54:12,243 INFO L134 CoverageAnalysis]: Checked inductivity of 18240 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18240 trivial. 0 not checked. [2024-11-18 19:54:12,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:54:12,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790538862] [2024-11-18 19:54:12,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1790538862] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:54:12,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:54:12,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 19:54:12,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779613965] [2024-11-18 19:54:12,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:54:12,245 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 19:54:12,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:54:12,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 19:54:12,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:54:12,246 INFO L87 Difference]: Start difference. First operand 481 states and 806 transitions. Second operand has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 1 states have call successors, (96), 1 states have call predecessors, (96), 1 states have return successors, (96), 1 states have call predecessors, (96), 1 states have call successors, (96) [2024-11-18 19:54:12,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:54:12,293 INFO L93 Difference]: Finished difference Result 1435 states and 2408 transitions. [2024-11-18 19:54:12,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 19:54:12,295 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 1 states have call successors, (96), 1 states have call predecessors, (96), 1 states have return successors, (96), 1 states have call predecessors, (96), 1 states have call successors, (96) Word has length 641 [2024-11-18 19:54:12,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:54:12,300 INFO L225 Difference]: With dead ends: 1435 [2024-11-18 19:54:12,301 INFO L226 Difference]: Without dead ends: 957 [2024-11-18 19:54:12,302 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:54:12,303 INFO L432 NwaCegarLoop]: 1027 mSDtfsCounter, 572 mSDsluCounter, 601 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 572 SdHoareTripleChecker+Valid, 1628 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 19:54:12,303 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [572 Valid, 1628 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 19:54:12,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 957 states. [2024-11-18 19:54:12,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 957 to 955. [2024-11-18 19:54:12,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 955 states, 758 states have (on average 1.6055408970976253) internal successors, (1217), 758 states have internal predecessors, (1217), 192 states have call successors, (192), 4 states have call predecessors, (192), 4 states have return successors, (192), 192 states have call predecessors, (192), 192 states have call successors, (192) [2024-11-18 19:54:12,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 955 states to 955 states and 1601 transitions. [2024-11-18 19:54:12,341 INFO L78 Accepts]: Start accepts. Automaton has 955 states and 1601 transitions. Word has length 641 [2024-11-18 19:54:12,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:54:12,341 INFO L471 AbstractCegarLoop]: Abstraction has 955 states and 1601 transitions. [2024-11-18 19:54:12,342 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 1 states have call successors, (96), 1 states have call predecessors, (96), 1 states have return successors, (96), 1 states have call predecessors, (96), 1 states have call successors, (96) [2024-11-18 19:54:12,342 INFO L276 IsEmpty]: Start isEmpty. Operand 955 states and 1601 transitions. [2024-11-18 19:54:12,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 642 [2024-11-18 19:54:12,345 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:54:12,346 INFO L215 NwaCegarLoop]: trace histogram [96, 96, 96, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:54:12,346 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-18 19:54:12,346 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:54:12,347 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:54:12,347 INFO L85 PathProgramCache]: Analyzing trace with hash -1433168402, now seen corresponding path program 1 times [2024-11-18 19:54:12,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:54:12,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449933060] [2024-11-18 19:54:12,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:54:12,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:54:12,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:54:12,567 INFO L134 CoverageAnalysis]: Checked inductivity of 18240 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18240 trivial. 0 not checked. [2024-11-18 19:54:12,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:54:12,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449933060] [2024-11-18 19:54:12,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449933060] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:54:12,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:54:12,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 19:54:12,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925214227] [2024-11-18 19:54:12,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:54:12,571 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 19:54:12,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:54:12,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 19:54:12,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:54:12,573 INFO L87 Difference]: Start difference. First operand 955 states and 1601 transitions. Second operand has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 1 states have call successors, (96), 1 states have call predecessors, (96), 1 states have return successors, (96), 1 states have call predecessors, (96), 1 states have call successors, (96) [2024-11-18 19:54:12,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:54:12,649 INFO L93 Difference]: Finished difference Result 2851 states and 4783 transitions. [2024-11-18 19:54:12,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 19:54:12,650 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 1 states have call successors, (96), 1 states have call predecessors, (96), 1 states have return successors, (96), 1 states have call predecessors, (96), 1 states have call successors, (96) Word has length 641 [2024-11-18 19:54:12,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:54:12,659 INFO L225 Difference]: With dead ends: 2851 [2024-11-18 19:54:12,659 INFO L226 Difference]: Without dead ends: 1899 [2024-11-18 19:54:12,662 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:54:12,663 INFO L432 NwaCegarLoop]: 1171 mSDtfsCounter, 586 mSDsluCounter, 589 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 586 SdHoareTripleChecker+Valid, 1760 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 19:54:12,664 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [586 Valid, 1760 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 19:54:12,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1899 states. [2024-11-18 19:54:12,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1899 to 1877. [2024-11-18 19:54:12,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1877 states, 1484 states have (on average 1.5970350404312668) internal successors, (2370), 1484 states have internal predecessors, (2370), 384 states have call successors, (384), 8 states have call predecessors, (384), 8 states have return successors, (384), 384 states have call predecessors, (384), 384 states have call successors, (384) [2024-11-18 19:54:12,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1877 states to 1877 states and 3138 transitions. [2024-11-18 19:54:12,746 INFO L78 Accepts]: Start accepts. Automaton has 1877 states and 3138 transitions. Word has length 641 [2024-11-18 19:54:12,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:54:12,747 INFO L471 AbstractCegarLoop]: Abstraction has 1877 states and 3138 transitions. [2024-11-18 19:54:12,748 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 1 states have call successors, (96), 1 states have call predecessors, (96), 1 states have return successors, (96), 1 states have call predecessors, (96), 1 states have call successors, (96) [2024-11-18 19:54:12,748 INFO L276 IsEmpty]: Start isEmpty. Operand 1877 states and 3138 transitions. [2024-11-18 19:54:12,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 642 [2024-11-18 19:54:12,751 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:54:12,752 INFO L215 NwaCegarLoop]: trace histogram [96, 96, 96, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:54:12,752 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-18 19:54:12,753 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:54:12,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:54:12,753 INFO L85 PathProgramCache]: Analyzing trace with hash 1236057774, now seen corresponding path program 1 times [2024-11-18 19:54:12,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:54:12,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498692177] [2024-11-18 19:54:12,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:54:12,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:54:12,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:54:13,011 INFO L134 CoverageAnalysis]: Checked inductivity of 18240 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18240 trivial. 0 not checked. [2024-11-18 19:54:13,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:54:13,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498692177] [2024-11-18 19:54:13,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498692177] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:54:13,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:54:13,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 19:54:13,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667138381] [2024-11-18 19:54:13,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:54:13,013 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 19:54:13,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:54:13,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 19:54:13,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:54:13,014 INFO L87 Difference]: Start difference. First operand 1877 states and 3138 transitions. Second operand has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 1 states have call successors, (96), 1 states have call predecessors, (96), 1 states have return successors, (96), 1 states have call predecessors, (96), 1 states have call successors, (96) [2024-11-18 19:54:13,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:54:13,091 INFO L93 Difference]: Finished difference Result 3865 states and 6442 transitions. [2024-11-18 19:54:13,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 19:54:13,092 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 1 states have call successors, (96), 1 states have call predecessors, (96), 1 states have return successors, (96), 1 states have call predecessors, (96), 1 states have call successors, (96) Word has length 641 [2024-11-18 19:54:13,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:54:13,102 INFO L225 Difference]: With dead ends: 3865 [2024-11-18 19:54:13,103 INFO L226 Difference]: Without dead ends: 1991 [2024-11-18 19:54:13,108 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:54:13,109 INFO L432 NwaCegarLoop]: 623 mSDtfsCounter, 33 mSDsluCounter, 592 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 1215 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 19:54:13,110 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 1215 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 19:54:13,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1991 states. [2024-11-18 19:54:13,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1991 to 1929. [2024-11-18 19:54:13,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1929 states, 1536 states have (on average 1.5924479166666667) internal successors, (2446), 1536 states have internal predecessors, (2446), 384 states have call successors, (384), 8 states have call predecessors, (384), 8 states have return successors, (384), 384 states have call predecessors, (384), 384 states have call successors, (384) [2024-11-18 19:54:13,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1929 states to 1929 states and 3214 transitions. [2024-11-18 19:54:13,207 INFO L78 Accepts]: Start accepts. Automaton has 1929 states and 3214 transitions. Word has length 641 [2024-11-18 19:54:13,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:54:13,208 INFO L471 AbstractCegarLoop]: Abstraction has 1929 states and 3214 transitions. [2024-11-18 19:54:13,208 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 1 states have call successors, (96), 1 states have call predecessors, (96), 1 states have return successors, (96), 1 states have call predecessors, (96), 1 states have call successors, (96) [2024-11-18 19:54:13,208 INFO L276 IsEmpty]: Start isEmpty. Operand 1929 states and 3214 transitions. [2024-11-18 19:54:13,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 642 [2024-11-18 19:54:13,230 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:54:13,231 INFO L215 NwaCegarLoop]: trace histogram [96, 96, 96, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:54:13,231 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-18 19:54:13,231 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:54:13,232 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:54:13,232 INFO L85 PathProgramCache]: Analyzing trace with hash 1948532462, now seen corresponding path program 1 times [2024-11-18 19:54:13,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:54:13,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102576427] [2024-11-18 19:54:13,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:54:13,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:54:13,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:54:13,838 INFO L134 CoverageAnalysis]: Checked inductivity of 18240 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18240 trivial. 0 not checked. [2024-11-18 19:54:13,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:54:13,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102576427] [2024-11-18 19:54:13,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [102576427] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:54:13,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:54:13,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 19:54:13,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960424226] [2024-11-18 19:54:13,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:54:13,840 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 19:54:13,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:54:13,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 19:54:13,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:54:13,841 INFO L87 Difference]: Start difference. First operand 1929 states and 3214 transitions. Second operand has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 1 states have call successors, (96), 1 states have call predecessors, (96), 1 states have return successors, (96), 1 states have call predecessors, (96), 1 states have call successors, (96) [2024-11-18 19:54:13,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:54:13,937 INFO L93 Difference]: Finished difference Result 5781 states and 9636 transitions. [2024-11-18 19:54:13,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 19:54:13,938 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 1 states have call successors, (96), 1 states have call predecessors, (96), 1 states have return successors, (96), 1 states have call predecessors, (96), 1 states have call successors, (96) Word has length 641 [2024-11-18 19:54:13,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:54:13,956 INFO L225 Difference]: With dead ends: 5781 [2024-11-18 19:54:13,956 INFO L226 Difference]: Without dead ends: 3855 [2024-11-18 19:54:13,963 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:54:13,964 INFO L432 NwaCegarLoop]: 603 mSDtfsCounter, 435 mSDsluCounter, 596 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 435 SdHoareTripleChecker+Valid, 1199 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 19:54:13,964 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [435 Valid, 1199 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 19:54:13,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3855 states. [2024-11-18 19:54:14,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3855 to 3837. [2024-11-18 19:54:14,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3837 states, 3052 states have (on average 1.5884665792922674) internal successors, (4848), 3052 states have internal predecessors, (4848), 768 states have call successors, (768), 16 states have call predecessors, (768), 16 states have return successors, (768), 768 states have call predecessors, (768), 768 states have call successors, (768) [2024-11-18 19:54:14,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3837 states to 3837 states and 6384 transitions. [2024-11-18 19:54:14,212 INFO L78 Accepts]: Start accepts. Automaton has 3837 states and 6384 transitions. Word has length 641 [2024-11-18 19:54:14,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:54:14,213 INFO L471 AbstractCegarLoop]: Abstraction has 3837 states and 6384 transitions. [2024-11-18 19:54:14,213 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 1 states have call successors, (96), 1 states have call predecessors, (96), 1 states have return successors, (96), 1 states have call predecessors, (96), 1 states have call successors, (96) [2024-11-18 19:54:14,214 INFO L276 IsEmpty]: Start isEmpty. Operand 3837 states and 6384 transitions. [2024-11-18 19:54:14,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 643 [2024-11-18 19:54:14,218 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:54:14,218 INFO L215 NwaCegarLoop]: trace histogram [96, 96, 96, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:54:14,219 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-18 19:54:14,219 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:54:14,219 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:54:14,219 INFO L85 PathProgramCache]: Analyzing trace with hash -1909936660, now seen corresponding path program 1 times [2024-11-18 19:54:14,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:54:14,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569675749] [2024-11-18 19:54:14,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:54:14,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:54:14,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:54:14,629 INFO L134 CoverageAnalysis]: Checked inductivity of 18240 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18240 trivial. 0 not checked. [2024-11-18 19:54:14,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:54:14,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569675749] [2024-11-18 19:54:14,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [569675749] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:54:14,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:54:14,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 19:54:14,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690459402] [2024-11-18 19:54:14,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:54:14,630 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 19:54:14,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:54:14,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 19:54:14,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:54:14,634 INFO L87 Difference]: Start difference. First operand 3837 states and 6384 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 1 states have call successors, (96), 1 states have call predecessors, (96), 1 states have return successors, (96), 1 states have call predecessors, (96), 1 states have call successors, (96) [2024-11-18 19:54:14,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:54:14,851 INFO L93 Difference]: Finished difference Result 11505 states and 19146 transitions. [2024-11-18 19:54:14,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 19:54:14,852 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 1 states have call successors, (96), 1 states have call predecessors, (96), 1 states have return successors, (96), 1 states have call predecessors, (96), 1 states have call successors, (96) Word has length 642 [2024-11-18 19:54:14,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:54:14,887 INFO L225 Difference]: With dead ends: 11505 [2024-11-18 19:54:14,887 INFO L226 Difference]: Without dead ends: 7671 [2024-11-18 19:54:14,900 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:54:14,901 INFO L432 NwaCegarLoop]: 616 mSDtfsCounter, 418 mSDsluCounter, 588 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 418 SdHoareTripleChecker+Valid, 1204 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 19:54:14,901 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [418 Valid, 1204 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 19:54:14,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7671 states. [2024-11-18 19:54:15,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7671 to 7669. [2024-11-18 19:54:15,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7669 states, 6100 states have (on average 1.5862295081967213) internal successors, (9676), 6100 states have internal predecessors, (9676), 1536 states have call successors, (1536), 32 states have call predecessors, (1536), 32 states have return successors, (1536), 1536 states have call predecessors, (1536), 1536 states have call successors, (1536) [2024-11-18 19:54:15,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7669 states to 7669 states and 12748 transitions. [2024-11-18 19:54:15,399 INFO L78 Accepts]: Start accepts. Automaton has 7669 states and 12748 transitions. Word has length 642 [2024-11-18 19:54:15,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:54:15,400 INFO L471 AbstractCegarLoop]: Abstraction has 7669 states and 12748 transitions. [2024-11-18 19:54:15,400 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 1 states have call successors, (96), 1 states have call predecessors, (96), 1 states have return successors, (96), 1 states have call predecessors, (96), 1 states have call successors, (96) [2024-11-18 19:54:15,401 INFO L276 IsEmpty]: Start isEmpty. Operand 7669 states and 12748 transitions. [2024-11-18 19:54:15,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 644 [2024-11-18 19:54:15,410 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:54:15,410 INFO L215 NwaCegarLoop]: trace histogram [96, 96, 96, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:54:15,410 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-18 19:54:15,411 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:54:15,411 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:54:15,411 INFO L85 PathProgramCache]: Analyzing trace with hash 2038928081, now seen corresponding path program 1 times [2024-11-18 19:54:15,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:54:15,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518272675] [2024-11-18 19:54:15,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:54:15,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:54:15,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:54:15,976 INFO L134 CoverageAnalysis]: Checked inductivity of 18240 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18240 trivial. 0 not checked. [2024-11-18 19:54:15,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:54:15,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518272675] [2024-11-18 19:54:15,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [518272675] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:54:15,977 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:54:15,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 19:54:15,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109094950] [2024-11-18 19:54:15,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:54:15,979 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 19:54:15,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:54:15,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 19:54:15,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:54:15,984 INFO L87 Difference]: Start difference. First operand 7669 states and 12748 transitions. Second operand has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 1 states have call successors, (96), 1 states have call predecessors, (96), 1 states have return successors, (96), 1 states have call predecessors, (96), 1 states have call successors, (96) [2024-11-18 19:54:16,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:54:16,404 INFO L93 Difference]: Finished difference Result 23001 states and 38238 transitions. [2024-11-18 19:54:16,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 19:54:16,405 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 1 states have call successors, (96), 1 states have call predecessors, (96), 1 states have return successors, (96), 1 states have call predecessors, (96), 1 states have call successors, (96) Word has length 643 [2024-11-18 19:54:16,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:54:16,487 INFO L225 Difference]: With dead ends: 23001 [2024-11-18 19:54:16,488 INFO L226 Difference]: Without dead ends: 15335 [2024-11-18 19:54:16,514 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:54:16,514 INFO L432 NwaCegarLoop]: 605 mSDtfsCounter, 394 mSDsluCounter, 597 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 394 SdHoareTripleChecker+Valid, 1202 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 19:54:16,515 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [394 Valid, 1202 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 19:54:16,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15335 states. [2024-11-18 19:54:17,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15335 to 14981. [2024-11-18 19:54:17,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14981 states, 11844 states have (on average 1.579533941236069) internal successors, (18708), 11844 states have internal predecessors, (18708), 3072 states have call successors, (3072), 64 states have call predecessors, (3072), 64 states have return successors, (3072), 3072 states have call predecessors, (3072), 3072 states have call successors, (3072) [2024-11-18 19:54:17,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14981 states to 14981 states and 24852 transitions. [2024-11-18 19:54:17,402 INFO L78 Accepts]: Start accepts. Automaton has 14981 states and 24852 transitions. Word has length 643 [2024-11-18 19:54:17,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:54:17,403 INFO L471 AbstractCegarLoop]: Abstraction has 14981 states and 24852 transitions. [2024-11-18 19:54:17,404 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 1 states have call successors, (96), 1 states have call predecessors, (96), 1 states have return successors, (96), 1 states have call predecessors, (96), 1 states have call successors, (96) [2024-11-18 19:54:17,404 INFO L276 IsEmpty]: Start isEmpty. Operand 14981 states and 24852 transitions. [2024-11-18 19:54:17,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 644 [2024-11-18 19:54:17,414 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:54:17,414 INFO L215 NwaCegarLoop]: trace histogram [96, 96, 96, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:54:17,414 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-18 19:54:17,414 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:54:17,415 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:54:17,415 INFO L85 PathProgramCache]: Analyzing trace with hash -887051307, now seen corresponding path program 1 times [2024-11-18 19:54:17,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:54:17,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483293012] [2024-11-18 19:54:17,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:54:17,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:54:17,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:54:17,896 INFO L134 CoverageAnalysis]: Checked inductivity of 18240 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18240 trivial. 0 not checked. [2024-11-18 19:54:17,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:54:17,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483293012] [2024-11-18 19:54:17,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [483293012] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:54:17,897 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:54:17,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 19:54:17,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044146188] [2024-11-18 19:54:17,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:54:17,898 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 19:54:17,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:54:17,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 19:54:17,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:54:17,900 INFO L87 Difference]: Start difference. First operand 14981 states and 24852 transitions. Second operand has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 1 states have call successors, (96), 1 states have call predecessors, (96), 1 states have return successors, (96), 1 states have call predecessors, (96), 1 states have call successors, (96) [2024-11-18 19:54:18,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:54:18,544 INFO L93 Difference]: Finished difference Result 30131 states and 49867 transitions. [2024-11-18 19:54:18,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 19:54:18,545 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 1 states have call successors, (96), 1 states have call predecessors, (96), 1 states have return successors, (96), 1 states have call predecessors, (96), 1 states have call successors, (96) Word has length 643 [2024-11-18 19:54:18,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:54:18,613 INFO L225 Difference]: With dead ends: 30131 [2024-11-18 19:54:18,613 INFO L226 Difference]: Without dead ends: 15153 [2024-11-18 19:54:18,668 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:54:18,668 INFO L432 NwaCegarLoop]: 656 mSDtfsCounter, 391 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 391 SdHoareTripleChecker+Valid, 935 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 19:54:18,669 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [391 Valid, 935 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 19:54:18,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15153 states. [2024-11-18 19:54:19,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15153 to 15152. [2024-11-18 19:54:19,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15152 states, 11957 states have (on average 1.571380781132391) internal successors, (18789), 11958 states have internal predecessors, (18789), 3098 states have call successors, (3098), 96 states have call predecessors, (3098), 96 states have return successors, (3098), 3097 states have call predecessors, (3098), 3098 states have call successors, (3098) [2024-11-18 19:54:19,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15152 states to 15152 states and 24985 transitions. [2024-11-18 19:54:19,655 INFO L78 Accepts]: Start accepts. Automaton has 15152 states and 24985 transitions. Word has length 643 [2024-11-18 19:54:19,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:54:19,656 INFO L471 AbstractCegarLoop]: Abstraction has 15152 states and 24985 transitions. [2024-11-18 19:54:19,656 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 1 states have call successors, (96), 1 states have call predecessors, (96), 1 states have return successors, (96), 1 states have call predecessors, (96), 1 states have call successors, (96) [2024-11-18 19:54:19,656 INFO L276 IsEmpty]: Start isEmpty. Operand 15152 states and 24985 transitions. [2024-11-18 19:54:19,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 645 [2024-11-18 19:54:19,666 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:54:19,666 INFO L215 NwaCegarLoop]: trace histogram [96, 96, 96, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:54:19,666 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-18 19:54:19,666 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:54:19,667 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:54:19,667 INFO L85 PathProgramCache]: Analyzing trace with hash -89320581, now seen corresponding path program 1 times [2024-11-18 19:54:19,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:54:19,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037612365] [2024-11-18 19:54:19,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:54:19,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:54:19,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:54:20,280 INFO L134 CoverageAnalysis]: Checked inductivity of 18240 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18240 trivial. 0 not checked. [2024-11-18 19:54:20,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:54:20,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037612365] [2024-11-18 19:54:20,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2037612365] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:54:20,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:54:20,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 19:54:20,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733909459] [2024-11-18 19:54:20,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:54:20,281 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 19:54:20,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:54:20,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 19:54:20,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-18 19:54:20,282 INFO L87 Difference]: Start difference. First operand 15152 states and 24985 transitions. Second operand has 4 states, 4 states have (on average 41.75) internal successors, (167), 4 states have internal predecessors, (167), 1 states have call successors, (96), 1 states have call predecessors, (96), 1 states have return successors, (96), 1 states have call predecessors, (96), 1 states have call successors, (96) [2024-11-18 19:54:21,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:54:21,493 INFO L93 Difference]: Finished difference Result 45140 states and 74523 transitions. [2024-11-18 19:54:21,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 19:54:21,494 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.75) internal successors, (167), 4 states have internal predecessors, (167), 1 states have call successors, (96), 1 states have call predecessors, (96), 1 states have return successors, (96), 1 states have call predecessors, (96), 1 states have call successors, (96) Word has length 644 [2024-11-18 19:54:21,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:54:21,586 INFO L225 Difference]: With dead ends: 45140 [2024-11-18 19:54:21,587 INFO L226 Difference]: Without dead ends: 30034 [2024-11-18 19:54:21,617 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-18 19:54:21,617 INFO L432 NwaCegarLoop]: 1151 mSDtfsCounter, 1227 mSDsluCounter, 385 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1227 SdHoareTripleChecker+Valid, 1536 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 19:54:21,618 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1227 Valid, 1536 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 19:54:21,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30034 states. [2024-11-18 19:54:22,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30034 to 15872. [2024-11-18 19:54:22,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15872 states, 12637 states have (on average 1.566194508190235) internal successors, (19792), 12639 states have internal predecessors, (19792), 3136 states have call successors, (3136), 98 states have call predecessors, (3136), 98 states have return successors, (3136), 3134 states have call predecessors, (3136), 3136 states have call successors, (3136) [2024-11-18 19:54:22,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15872 states to 15872 states and 26064 transitions. [2024-11-18 19:54:22,730 INFO L78 Accepts]: Start accepts. Automaton has 15872 states and 26064 transitions. Word has length 644 [2024-11-18 19:54:22,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:54:22,732 INFO L471 AbstractCegarLoop]: Abstraction has 15872 states and 26064 transitions. [2024-11-18 19:54:22,732 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.75) internal successors, (167), 4 states have internal predecessors, (167), 1 states have call successors, (96), 1 states have call predecessors, (96), 1 states have return successors, (96), 1 states have call predecessors, (96), 1 states have call successors, (96) [2024-11-18 19:54:22,732 INFO L276 IsEmpty]: Start isEmpty. Operand 15872 states and 26064 transitions. [2024-11-18 19:54:22,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 645 [2024-11-18 19:54:22,745 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:54:22,746 INFO L215 NwaCegarLoop]: trace histogram [96, 96, 96, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:54:22,746 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-18 19:54:22,746 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:54:22,747 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:54:22,747 INFO L85 PathProgramCache]: Analyzing trace with hash 497485433, now seen corresponding path program 1 times [2024-11-18 19:54:22,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:54:22,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494010576] [2024-11-18 19:54:22,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:54:22,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:54:22,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:54:23,617 INFO L134 CoverageAnalysis]: Checked inductivity of 18240 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18240 trivial. 0 not checked. [2024-11-18 19:54:23,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:54:23,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494010576] [2024-11-18 19:54:23,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [494010576] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:54:23,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:54:23,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 19:54:23,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547328560] [2024-11-18 19:54:23,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:54:23,620 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 19:54:23,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:54:23,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 19:54:23,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-18 19:54:23,622 INFO L87 Difference]: Start difference. First operand 15872 states and 26064 transitions. Second operand has 5 states, 5 states have (on average 33.4) internal successors, (167), 5 states have internal predecessors, (167), 1 states have call successors, (96), 1 states have call predecessors, (96), 1 states have return successors, (96), 1 states have call predecessors, (96), 1 states have call successors, (96) [2024-11-18 19:54:25,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:54:25,804 INFO L93 Difference]: Finished difference Result 48947 states and 80590 transitions. [2024-11-18 19:54:25,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 19:54:25,805 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.4) internal successors, (167), 5 states have internal predecessors, (167), 1 states have call successors, (96), 1 states have call predecessors, (96), 1 states have return successors, (96), 1 states have call predecessors, (96), 1 states have call successors, (96) Word has length 644 [2024-11-18 19:54:25,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:54:25,932 INFO L225 Difference]: With dead ends: 48947 [2024-11-18 19:54:25,933 INFO L226 Difference]: Without dead ends: 33121 [2024-11-18 19:54:25,981 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-18 19:54:25,982 INFO L432 NwaCegarLoop]: 1711 mSDtfsCounter, 1601 mSDsluCounter, 945 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 194 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1601 SdHoareTripleChecker+Valid, 2656 SdHoareTripleChecker+Invalid, 442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 194 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-18 19:54:25,982 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1601 Valid, 2656 Invalid, 442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [194 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-18 19:54:26,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33121 states. [2024-11-18 19:54:27,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33121 to 16168. [2024-11-18 19:54:27,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16168 states, 12960 states have (on average 1.5592592592592593) internal successors, (20208), 12961 states have internal predecessors, (20208), 3110 states have call successors, (3110), 97 states have call predecessors, (3110), 97 states have return successors, (3110), 3109 states have call predecessors, (3110), 3110 states have call successors, (3110) [2024-11-18 19:54:27,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16168 states to 16168 states and 26428 transitions. [2024-11-18 19:54:27,816 INFO L78 Accepts]: Start accepts. Automaton has 16168 states and 26428 transitions. Word has length 644 [2024-11-18 19:54:27,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:54:27,817 INFO L471 AbstractCegarLoop]: Abstraction has 16168 states and 26428 transitions. [2024-11-18 19:54:27,817 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.4) internal successors, (167), 5 states have internal predecessors, (167), 1 states have call successors, (96), 1 states have call predecessors, (96), 1 states have return successors, (96), 1 states have call predecessors, (96), 1 states have call successors, (96) [2024-11-18 19:54:27,818 INFO L276 IsEmpty]: Start isEmpty. Operand 16168 states and 26428 transitions. [2024-11-18 19:54:27,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 646 [2024-11-18 19:54:27,827 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:54:27,827 INFO L215 NwaCegarLoop]: trace histogram [96, 96, 96, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:54:27,828 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-18 19:54:27,828 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:54:27,828 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:54:27,828 INFO L85 PathProgramCache]: Analyzing trace with hash -484389410, now seen corresponding path program 1 times [2024-11-18 19:54:27,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:54:27,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94919215] [2024-11-18 19:54:27,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:54:27,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:54:27,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:54:28,255 INFO L134 CoverageAnalysis]: Checked inductivity of 18240 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18240 trivial. 0 not checked. [2024-11-18 19:54:28,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:54:28,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94919215] [2024-11-18 19:54:28,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94919215] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:54:28,257 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:54:28,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 19:54:28,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005639602] [2024-11-18 19:54:28,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:54:28,258 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 19:54:28,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:54:28,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 19:54:28,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 19:54:28,260 INFO L87 Difference]: Start difference. First operand 16168 states and 26428 transitions. Second operand has 4 states, 4 states have (on average 42.0) internal successors, (168), 4 states have internal predecessors, (168), 1 states have call successors, (96), 1 states have call predecessors, (96), 1 states have return successors, (96), 1 states have call predecessors, (96), 1 states have call successors, (96) [2024-11-18 19:54:30,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:54:30,843 INFO L93 Difference]: Finished difference Result 51027 states and 83488 transitions. [2024-11-18 19:54:30,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 19:54:30,844 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.0) internal successors, (168), 4 states have internal predecessors, (168), 1 states have call successors, (96), 1 states have call predecessors, (96), 1 states have return successors, (96), 1 states have call predecessors, (96), 1 states have call successors, (96) Word has length 645 [2024-11-18 19:54:30,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:54:30,959 INFO L225 Difference]: With dead ends: 51027 [2024-11-18 19:54:30,959 INFO L226 Difference]: Without dead ends: 34929 [2024-11-18 19:54:31,002 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 19:54:31,003 INFO L432 NwaCegarLoop]: 1140 mSDtfsCounter, 1602 mSDsluCounter, 753 mSDsCounter, 0 mSdLazyCounter, 444 mSolverCounterSat, 193 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1602 SdHoareTripleChecker+Valid, 1893 SdHoareTripleChecker+Invalid, 637 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 193 IncrementalHoareTripleChecker+Valid, 444 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-18 19:54:31,003 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1602 Valid, 1893 Invalid, 637 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [193 Valid, 444 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-18 19:54:31,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34929 states. [2024-11-18 19:54:33,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34929 to 16232. [2024-11-18 19:54:33,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16232 states, 13024 states have (on average 1.5565110565110565) internal successors, (20272), 13025 states have internal predecessors, (20272), 3110 states have call successors, (3110), 97 states have call predecessors, (3110), 97 states have return successors, (3110), 3109 states have call predecessors, (3110), 3110 states have call successors, (3110) [2024-11-18 19:54:33,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16232 states to 16232 states and 26492 transitions. [2024-11-18 19:54:33,651 INFO L78 Accepts]: Start accepts. Automaton has 16232 states and 26492 transitions. Word has length 645 [2024-11-18 19:54:33,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:54:33,652 INFO L471 AbstractCegarLoop]: Abstraction has 16232 states and 26492 transitions. [2024-11-18 19:54:33,653 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.0) internal successors, (168), 4 states have internal predecessors, (168), 1 states have call successors, (96), 1 states have call predecessors, (96), 1 states have return successors, (96), 1 states have call predecessors, (96), 1 states have call successors, (96) [2024-11-18 19:54:33,653 INFO L276 IsEmpty]: Start isEmpty. Operand 16232 states and 26492 transitions. [2024-11-18 19:54:33,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 646 [2024-11-18 19:54:33,666 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:54:33,666 INFO L215 NwaCegarLoop]: trace histogram [96, 96, 96, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:54:33,667 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-18 19:54:33,667 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:54:33,667 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:54:33,667 INFO L85 PathProgramCache]: Analyzing trace with hash 102416604, now seen corresponding path program 1 times [2024-11-18 19:54:33,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:54:33,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294805931] [2024-11-18 19:54:33,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:54:33,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:54:33,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:54:35,255 INFO L134 CoverageAnalysis]: Checked inductivity of 18240 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18240 trivial. 0 not checked. [2024-11-18 19:54:35,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:54:35,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294805931] [2024-11-18 19:54:35,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [294805931] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:54:35,257 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:54:35,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-18 19:54:35,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137430808] [2024-11-18 19:54:35,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:54:35,259 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-18 19:54:35,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:54:35,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-18 19:54:35,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-18 19:54:35,260 INFO L87 Difference]: Start difference. First operand 16232 states and 26492 transitions. Second operand has 11 states, 11 states have (on average 15.272727272727273) internal successors, (168), 11 states have internal predecessors, (168), 2 states have call successors, (96), 1 states have call predecessors, (96), 1 states have return successors, (96), 2 states have call predecessors, (96), 2 states have call successors, (96) [2024-11-18 19:54:45,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:54:45,164 INFO L93 Difference]: Finished difference Result 110637 states and 179285 transitions. [2024-11-18 19:54:45,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-18 19:54:45,165 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.272727272727273) internal successors, (168), 11 states have internal predecessors, (168), 2 states have call successors, (96), 1 states have call predecessors, (96), 1 states have return successors, (96), 2 states have call predecessors, (96), 2 states have call successors, (96) Word has length 645 [2024-11-18 19:54:45,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:54:45,429 INFO L225 Difference]: With dead ends: 110637 [2024-11-18 19:54:45,430 INFO L226 Difference]: Without dead ends: 94475 [2024-11-18 19:54:45,479 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=117, Invalid=303, Unknown=0, NotChecked=0, Total=420 [2024-11-18 19:54:45,479 INFO L432 NwaCegarLoop]: 890 mSDtfsCounter, 6860 mSDsluCounter, 3737 mSDsCounter, 0 mSdLazyCounter, 2851 mSolverCounterSat, 2398 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6860 SdHoareTripleChecker+Valid, 4627 SdHoareTripleChecker+Invalid, 5249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2398 IncrementalHoareTripleChecker+Valid, 2851 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-11-18 19:54:45,480 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6860 Valid, 4627 Invalid, 5249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2398 Valid, 2851 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-11-18 19:54:45,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94475 states. [2024-11-18 19:54:49,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94475 to 37534. [2024-11-18 19:54:49,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37534 states, 31113 states have (on average 1.5805933211197891) internal successors, (49177), 31114 states have internal predecessors, (49177), 6194 states have call successors, (6194), 226 states have call predecessors, (6194), 226 states have return successors, (6194), 6193 states have call predecessors, (6194), 6194 states have call successors, (6194) [2024-11-18 19:54:49,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37534 states to 37534 states and 61565 transitions. [2024-11-18 19:54:49,949 INFO L78 Accepts]: Start accepts. Automaton has 37534 states and 61565 transitions. Word has length 645 [2024-11-18 19:54:49,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:54:49,950 INFO L471 AbstractCegarLoop]: Abstraction has 37534 states and 61565 transitions. [2024-11-18 19:54:49,950 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.272727272727273) internal successors, (168), 11 states have internal predecessors, (168), 2 states have call successors, (96), 1 states have call predecessors, (96), 1 states have return successors, (96), 2 states have call predecessors, (96), 2 states have call successors, (96) [2024-11-18 19:54:49,950 INFO L276 IsEmpty]: Start isEmpty. Operand 37534 states and 61565 transitions. [2024-11-18 19:54:49,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 646 [2024-11-18 19:54:49,970 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:54:49,970 INFO L215 NwaCegarLoop]: trace histogram [96, 96, 96, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:54:49,970 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-18 19:54:49,971 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:54:49,971 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:54:49,971 INFO L85 PathProgramCache]: Analyzing trace with hash -407056486, now seen corresponding path program 1 times [2024-11-18 19:54:49,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:54:49,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266486132] [2024-11-18 19:54:49,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:54:49,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:54:50,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:54:50,907 INFO L134 CoverageAnalysis]: Checked inductivity of 18240 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18240 trivial. 0 not checked. [2024-11-18 19:54:50,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:54:50,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266486132] [2024-11-18 19:54:50,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1266486132] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:54:50,908 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:54:50,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-18 19:54:50,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635660253] [2024-11-18 19:54:50,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:54:50,909 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-18 19:54:50,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:54:50,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-18 19:54:50,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-18 19:54:50,910 INFO L87 Difference]: Start difference. First operand 37534 states and 61565 transitions. Second operand has 8 states, 8 states have (on average 21.0) internal successors, (168), 8 states have internal predecessors, (168), 1 states have call successors, (96), 1 states have call predecessors, (96), 1 states have return successors, (96), 1 states have call predecessors, (96), 1 states have call successors, (96) [2024-11-18 19:55:02,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:55:02,786 INFO L93 Difference]: Finished difference Result 188805 states and 310642 transitions. [2024-11-18 19:55:02,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-18 19:55:02,787 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 21.0) internal successors, (168), 8 states have internal predecessors, (168), 1 states have call successors, (96), 1 states have call predecessors, (96), 1 states have return successors, (96), 1 states have call predecessors, (96), 1 states have call successors, (96) Word has length 645 [2024-11-18 19:55:02,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:55:03,255 INFO L225 Difference]: With dead ends: 188805 [2024-11-18 19:55:03,255 INFO L226 Difference]: Without dead ends: 151363 [2024-11-18 19:55:03,382 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=69, Invalid=141, Unknown=0, NotChecked=0, Total=210 [2024-11-18 19:55:03,383 INFO L432 NwaCegarLoop]: 2288 mSDtfsCounter, 1575 mSDsluCounter, 5923 mSDsCounter, 0 mSdLazyCounter, 1763 mSolverCounterSat, 586 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1575 SdHoareTripleChecker+Valid, 8211 SdHoareTripleChecker+Invalid, 2349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 586 IncrementalHoareTripleChecker+Valid, 1763 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-18 19:55:03,383 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1575 Valid, 8211 Invalid, 2349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [586 Valid, 1763 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-18 19:55:03,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151363 states. [2024-11-18 19:55:10,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151363 to 76331. [2024-11-18 19:55:10,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76331 states, 63495 states have (on average 1.5760453579021971) internal successors, (100071), 63496 states have internal predecessors, (100071), 12384 states have call successors, (12384), 451 states have call predecessors, (12384), 451 states have return successors, (12384), 12383 states have call predecessors, (12384), 12384 states have call successors, (12384) [2024-11-18 19:55:10,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76331 states to 76331 states and 124839 transitions. [2024-11-18 19:55:11,017 INFO L78 Accepts]: Start accepts. Automaton has 76331 states and 124839 transitions. Word has length 645 [2024-11-18 19:55:11,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:55:11,018 INFO L471 AbstractCegarLoop]: Abstraction has 76331 states and 124839 transitions. [2024-11-18 19:55:11,019 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 21.0) internal successors, (168), 8 states have internal predecessors, (168), 1 states have call successors, (96), 1 states have call predecessors, (96), 1 states have return successors, (96), 1 states have call predecessors, (96), 1 states have call successors, (96) [2024-11-18 19:55:11,019 INFO L276 IsEmpty]: Start isEmpty. Operand 76331 states and 124839 transitions. [2024-11-18 19:55:11,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 646 [2024-11-18 19:55:11,044 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:55:11,045 INFO L215 NwaCegarLoop]: trace histogram [96, 96, 96, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:55:11,045 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-18 19:55:11,045 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:55:11,045 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:55:11,045 INFO L85 PathProgramCache]: Analyzing trace with hash -829758312, now seen corresponding path program 1 times [2024-11-18 19:55:11,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:55:11,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576022767] [2024-11-18 19:55:11,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:55:11,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:55:11,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:55:11,685 INFO L134 CoverageAnalysis]: Checked inductivity of 18240 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18240 trivial. 0 not checked. [2024-11-18 19:55:11,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:55:11,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576022767] [2024-11-18 19:55:11,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576022767] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:55:11,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:55:11,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 19:55:11,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397087836] [2024-11-18 19:55:11,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:55:11,687 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 19:55:11,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:55:11,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 19:55:11,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 19:55:11,688 INFO L87 Difference]: Start difference. First operand 76331 states and 124839 transitions. Second operand has 5 states, 5 states have (on average 33.6) internal successors, (168), 5 states have internal predecessors, (168), 1 states have call successors, (96), 1 states have call predecessors, (96), 1 states have return successors, (96), 1 states have call predecessors, (96), 1 states have call successors, (96)