./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem12_label13.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/eca-rers2012/Problem12_label13.c -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 152d7fbf05854462a33897c88f7cf73fa78514058a292c6dd4eaf2d74f1b44e9 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-21 22:06:43,253 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-21 22:06:43,307 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-21 22:06:43,311 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-21 22:06:43,312 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-21 22:06:43,336 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-21 22:06:43,338 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-21 22:06:43,339 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-21 22:06:43,339 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-21 22:06:43,340 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-21 22:06:43,341 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-21 22:06:43,341 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-21 22:06:43,342 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-21 22:06:43,342 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-21 22:06:43,343 INFO L153 SettingsManager]: * Use SBE=true [2024-11-21 22:06:43,344 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-21 22:06:43,344 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-21 22:06:43,344 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-21 22:06:43,344 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-21 22:06:43,345 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-21 22:06:43,345 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-21 22:06:43,349 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-21 22:06:43,350 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-21 22:06:43,350 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-21 22:06:43,350 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-21 22:06:43,350 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-21 22:06:43,350 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-21 22:06:43,350 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-21 22:06:43,351 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-21 22:06:43,351 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-21 22:06:43,351 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-21 22:06:43,351 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-21 22:06:43,351 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-21 22:06:43,351 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-21 22:06:43,352 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-21 22:06:43,352 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-21 22:06:43,352 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-21 22:06:43,352 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-21 22:06:43,352 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-21 22:06:43,352 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-21 22:06:43,352 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-21 22:06:43,353 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-21 22:06:43,353 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 152d7fbf05854462a33897c88f7cf73fa78514058a292c6dd4eaf2d74f1b44e9 [2024-11-21 22:06:43,538 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-21 22:06:43,559 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-21 22:06:43,561 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-21 22:06:43,562 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-21 22:06:43,563 INFO L274 PluginConnector]: CDTParser initialized [2024-11-21 22:06:43,564 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem12_label13.c [2024-11-21 22:06:44,849 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-21 22:06:45,216 INFO L384 CDTParser]: Found 1 translation units. [2024-11-21 22:06:45,218 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem12_label13.c [2024-11-21 22:06:45,250 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f783029ec/64006ccee7e646d5b4cd110edbf00e72/FLAG4b5806fa7 [2024-11-21 22:06:45,265 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f783029ec/64006ccee7e646d5b4cd110edbf00e72 [2024-11-21 22:06:45,267 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-21 22:06:45,269 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-21 22:06:45,272 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-21 22:06:45,272 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-21 22:06:45,276 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-21 22:06:45,277 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:06:45" (1/1) ... [2024-11-21 22:06:45,278 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@162b871b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:06:45, skipping insertion in model container [2024-11-21 22:06:45,278 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:06:45" (1/1) ... [2024-11-21 22:06:45,388 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-21 22:06:45,570 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/eca-rers2012/Problem12_label13.c[3765,3778] [2024-11-21 22:06:46,260 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-21 22:06:46,272 INFO L200 MainTranslator]: Completed pre-run [2024-11-21 22:06:46,291 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/eca-rers2012/Problem12_label13.c[3765,3778] [2024-11-21 22:06:46,666 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-21 22:06:46,685 INFO L204 MainTranslator]: Completed translation [2024-11-21 22:06:46,686 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:06:46 WrapperNode [2024-11-21 22:06:46,686 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-21 22:06:46,687 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-21 22:06:46,687 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-21 22:06:46,687 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-21 22:06:46,692 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:06:46" (1/1) ... [2024-11-21 22:06:46,734 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:06:46" (1/1) ... [2024-11-21 22:06:46,985 INFO L138 Inliner]: procedures = 17, calls = 11, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 4761 [2024-11-21 22:06:46,986 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-21 22:06:46,987 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-21 22:06:46,987 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-21 22:06:46,987 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-21 22:06:46,995 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:06:46" (1/1) ... [2024-11-21 22:06:46,996 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:06:46" (1/1) ... [2024-11-21 22:06:47,027 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:06:46" (1/1) ... [2024-11-21 22:06:47,172 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]. [2024-11-21 22:06:47,173 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:06:46" (1/1) ... [2024-11-21 22:06:47,173 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:06:46" (1/1) ... [2024-11-21 22:06:47,304 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:06:46" (1/1) ... [2024-11-21 22:06:47,333 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:06:46" (1/1) ... [2024-11-21 22:06:47,348 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:06:46" (1/1) ... [2024-11-21 22:06:47,364 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:06:46" (1/1) ... [2024-11-21 22:06:47,398 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-21 22:06:47,400 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-21 22:06:47,400 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-21 22:06:47,400 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-21 22:06:47,401 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:06:46" (1/1) ... [2024-11-21 22:06:47,406 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-21 22:06:47,416 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-21 22:06:47,431 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) [2024-11-21 22:06:47,433 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 [2024-11-21 22:06:47,469 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-21 22:06:47,470 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-21 22:06:47,470 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-21 22:06:47,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-21 22:06:47,524 INFO L238 CfgBuilder]: Building ICFG [2024-11-21 22:06:47,526 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-21 22:06:50,740 INFO L? ?]: Removed 702 outVars from TransFormulas that were not future-live. [2024-11-21 22:06:50,741 INFO L287 CfgBuilder]: Performing block encoding [2024-11-21 22:06:50,779 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-21 22:06:50,779 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-21 22:06:50,780 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:06:50 BoogieIcfgContainer [2024-11-21 22:06:50,780 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-21 22:06:50,782 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-21 22:06:50,782 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-21 22:06:50,784 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-21 22:06:50,785 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:06:45" (1/3) ... [2024-11-21 22:06:50,785 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bc42b04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:06:50, skipping insertion in model container [2024-11-21 22:06:50,785 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:06:46" (2/3) ... [2024-11-21 22:06:50,786 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bc42b04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:06:50, skipping insertion in model container [2024-11-21 22:06:50,786 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:06:50" (3/3) ... [2024-11-21 22:06:50,787 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem12_label13.c [2024-11-21 22:06:50,802 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-21 22:06:50,802 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-21 22:06:50,901 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-21 22:06:50,909 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;@39f6237b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-21 22:06:50,910 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-21 22:06:50,915 INFO L276 IsEmpty]: Start isEmpty. Operand has 818 states, 816 states have (on average 1.9178921568627452) internal successors, (1565), 817 states have internal predecessors, (1565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:06:50,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-21 22:06:50,920 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:06:50,920 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 22:06:50,921 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:06:50,924 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:06:50,924 INFO L85 PathProgramCache]: Analyzing trace with hash -716875070, now seen corresponding path program 1 times [2024-11-21 22:06:50,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:06:50,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205777223] [2024-11-21 22:06:50,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:06:50,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:06:51,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:06:51,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 22:06:51,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:06:51,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205777223] [2024-11-21 22:06:51,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205777223] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:06:51,196 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:06:51,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-21 22:06:51,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720114122] [2024-11-21 22:06:51,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:06:51,205 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:06:51,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:06:51,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:06:51,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:06:51,223 INFO L87 Difference]: Start difference. First operand has 818 states, 816 states have (on average 1.9178921568627452) internal successors, (1565), 817 states have internal predecessors, (1565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 2 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:06:54,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:06:54,339 INFO L93 Difference]: Finished difference Result 2388 states and 4629 transitions. [2024-11-21 22:06:54,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:06:54,345 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 2 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2024-11-21 22:06:54,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:06:54,373 INFO L225 Difference]: With dead ends: 2388 [2024-11-21 22:06:54,373 INFO L226 Difference]: Without dead ends: 1506 [2024-11-21 22:06:54,380 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:06:54,390 INFO L432 NwaCegarLoop]: 92 mSDtfsCounter, 831 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 2337 mSolverCounterSat, 1058 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 831 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 3395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1058 IncrementalHoareTripleChecker+Valid, 2337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-21 22:06:54,392 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [831 Valid, 102 Invalid, 3395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1058 Valid, 2337 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-21 22:06:54,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1506 states. [2024-11-21 22:06:54,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1506 to 1506. [2024-11-21 22:06:54,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1506 states, 1505 states have (on average 1.869767441860465) internal successors, (2814), 1505 states have internal predecessors, (2814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:06:54,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1506 states to 1506 states and 2814 transitions. [2024-11-21 22:06:54,550 INFO L78 Accepts]: Start accepts. Automaton has 1506 states and 2814 transitions. Word has length 28 [2024-11-21 22:06:54,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:06:54,555 INFO L471 AbstractCegarLoop]: Abstraction has 1506 states and 2814 transitions. [2024-11-21 22:06:54,556 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 2 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:06:54,556 INFO L276 IsEmpty]: Start isEmpty. Operand 1506 states and 2814 transitions. [2024-11-21 22:06:54,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-21 22:06:54,560 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:06:54,560 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 22:06:54,560 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-21 22:06:54,561 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:06:54,565 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:06:54,566 INFO L85 PathProgramCache]: Analyzing trace with hash 574416204, now seen corresponding path program 1 times [2024-11-21 22:06:54,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:06:54,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236848988] [2024-11-21 22:06:54,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:06:54,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:06:54,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:06:54,730 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 22:06:54,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:06:54,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236848988] [2024-11-21 22:06:54,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236848988] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:06:54,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:06:54,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-21 22:06:54,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477685175] [2024-11-21 22:06:54,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:06:54,732 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:06:54,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:06:54,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:06:54,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:06:54,733 INFO L87 Difference]: Start difference. First operand 1506 states and 2814 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 2 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:06:57,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:06:57,440 INFO L93 Difference]: Finished difference Result 4514 states and 8438 transitions. [2024-11-21 22:06:57,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:06:57,441 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 2 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2024-11-21 22:06:57,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:06:57,450 INFO L225 Difference]: With dead ends: 4514 [2024-11-21 22:06:57,451 INFO L226 Difference]: Without dead ends: 3010 [2024-11-21 22:06:57,453 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:06:57,455 INFO L432 NwaCegarLoop]: 347 mSDtfsCounter, 918 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2309 mSolverCounterSat, 550 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 918 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 2859 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 550 IncrementalHoareTripleChecker+Valid, 2309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-21 22:06:57,455 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [918 Valid, 354 Invalid, 2859 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [550 Valid, 2309 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-21 22:06:57,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3010 states. [2024-11-21 22:06:57,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3010 to 3008. [2024-11-21 22:06:57,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3008 states, 3007 states have (on average 1.6531426671100764) internal successors, (4971), 3007 states have internal predecessors, (4971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:06:57,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3008 states to 3008 states and 4971 transitions. [2024-11-21 22:06:57,496 INFO L78 Accepts]: Start accepts. Automaton has 3008 states and 4971 transitions. Word has length 101 [2024-11-21 22:06:57,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:06:57,496 INFO L471 AbstractCegarLoop]: Abstraction has 3008 states and 4971 transitions. [2024-11-21 22:06:57,497 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 2 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:06:57,497 INFO L276 IsEmpty]: Start isEmpty. Operand 3008 states and 4971 transitions. [2024-11-21 22:06:57,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-21 22:06:57,500 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:06:57,500 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 22:06:57,500 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-21 22:06:57,500 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:06:57,501 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:06:57,501 INFO L85 PathProgramCache]: Analyzing trace with hash 1742777415, now seen corresponding path program 1 times [2024-11-21 22:06:57,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:06:57,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179572404] [2024-11-21 22:06:57,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:06:57,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:06:57,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:06:57,755 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 22:06:57,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:06:57,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179572404] [2024-11-21 22:06:57,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [179572404] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:06:57,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:06:57,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-21 22:06:57,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593274847] [2024-11-21 22:06:57,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:06:57,757 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-21 22:06:57,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:06:57,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-21 22:06:57,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-21 22:06:57,762 INFO L87 Difference]: Start difference. First operand 3008 states and 4971 transitions. Second operand has 4 states, 4 states have (on average 28.5) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:07:01,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:07:01,858 INFO L93 Difference]: Finished difference Result 8267 states and 13429 transitions. [2024-11-21 22:07:01,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-21 22:07:01,859 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.5) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2024-11-21 22:07:01,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:07:01,893 INFO L225 Difference]: With dead ends: 8267 [2024-11-21 22:07:01,894 INFO L226 Difference]: Without dead ends: 5261 [2024-11-21 22:07:01,901 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-21 22:07:01,904 INFO L432 NwaCegarLoop]: 337 mSDtfsCounter, 2154 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 4998 mSolverCounterSat, 851 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2154 SdHoareTripleChecker+Valid, 353 SdHoareTripleChecker+Invalid, 5849 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 851 IncrementalHoareTripleChecker+Valid, 4998 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2024-11-21 22:07:01,907 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2154 Valid, 353 Invalid, 5849 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [851 Valid, 4998 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2024-11-21 22:07:01,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5261 states. [2024-11-21 22:07:01,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5261 to 5261. [2024-11-21 22:07:02,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5261 states, 5260 states have (on average 1.5102661596958176) internal successors, (7944), 5260 states have internal predecessors, (7944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:07:02,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5261 states to 5261 states and 7944 transitions. [2024-11-21 22:07:02,010 INFO L78 Accepts]: Start accepts. Automaton has 5261 states and 7944 transitions. Word has length 114 [2024-11-21 22:07:02,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:07:02,011 INFO L471 AbstractCegarLoop]: Abstraction has 5261 states and 7944 transitions. [2024-11-21 22:07:02,012 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.5) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:07:02,015 INFO L276 IsEmpty]: Start isEmpty. Operand 5261 states and 7944 transitions. [2024-11-21 22:07:02,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-21 22:07:02,020 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:07:02,020 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 22:07:02,021 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-21 22:07:02,021 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:07:02,021 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:07:02,021 INFO L85 PathProgramCache]: Analyzing trace with hash 1340876962, now seen corresponding path program 1 times [2024-11-21 22:07:02,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:07:02,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150985274] [2024-11-21 22:07:02,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:07:02,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:07:02,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:07:02,302 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-21 22:07:02,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:07:02,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150985274] [2024-11-21 22:07:02,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150985274] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-21 22:07:02,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1480603895] [2024-11-21 22:07:02,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:07:02,303 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 22:07:02,303 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-21 22:07:02,305 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) [2024-11-21 22:07:02,309 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-21 22:07:02,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:07:02,382 INFO L255 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-21 22:07:02,387 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-21 22:07:02,580 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-21 22:07:02,581 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-21 22:07:02,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1480603895] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:07:02,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-21 22:07:02,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2024-11-21 22:07:02,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291791407] [2024-11-21 22:07:02,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:07:02,582 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:07:02,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:07:02,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:07:02,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-21 22:07:02,582 INFO L87 Difference]: Start difference. First operand 5261 states and 7944 transitions. Second operand has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 2 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:07:05,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:07:05,189 INFO L93 Difference]: Finished difference Result 14275 states and 22313 transitions. [2024-11-21 22:07:05,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:07:05,190 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 2 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 169 [2024-11-21 22:07:05,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:07:05,213 INFO L225 Difference]: With dead ends: 14275 [2024-11-21 22:07:05,214 INFO L226 Difference]: Without dead ends: 9767 [2024-11-21 22:07:05,221 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-21 22:07:05,222 INFO L432 NwaCegarLoop]: 659 mSDtfsCounter, 621 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2456 mSolverCounterSat, 585 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 621 SdHoareTripleChecker+Valid, 666 SdHoareTripleChecker+Invalid, 3041 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 585 IncrementalHoareTripleChecker+Valid, 2456 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-21 22:07:05,222 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [621 Valid, 666 Invalid, 3041 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [585 Valid, 2456 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-21 22:07:05,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9767 states. [2024-11-21 22:07:05,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9767 to 9767. [2024-11-21 22:07:05,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9767 states, 9766 states have (on average 1.3878763055498669) internal successors, (13554), 9766 states have internal predecessors, (13554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:07:05,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9767 states to 9767 states and 13554 transitions. [2024-11-21 22:07:05,340 INFO L78 Accepts]: Start accepts. Automaton has 9767 states and 13554 transitions. Word has length 169 [2024-11-21 22:07:05,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:07:05,341 INFO L471 AbstractCegarLoop]: Abstraction has 9767 states and 13554 transitions. [2024-11-21 22:07:05,341 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 2 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:07:05,341 INFO L276 IsEmpty]: Start isEmpty. Operand 9767 states and 13554 transitions. [2024-11-21 22:07:05,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2024-11-21 22:07:05,343 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:07:05,343 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 22:07:05,352 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-21 22:07:05,543 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 22:07:05,544 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:07:05,545 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:07:05,545 INFO L85 PathProgramCache]: Analyzing trace with hash 355454358, now seen corresponding path program 1 times [2024-11-21 22:07:05,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:07:05,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721460955] [2024-11-21 22:07:05,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:07:05,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:07:05,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:07:05,901 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 22:07:05,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:07:05,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721460955] [2024-11-21 22:07:05,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [721460955] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:07:05,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:07:05,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-21 22:07:05,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030003440] [2024-11-21 22:07:05,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:07:05,902 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-21 22:07:05,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:07:05,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-21 22:07:05,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-21 22:07:05,903 INFO L87 Difference]: Start difference. First operand 9767 states and 13554 transitions. Second operand has 4 states, 4 states have (on average 46.25) internal successors, (185), 3 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:07:08,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:07:08,706 INFO L93 Difference]: Finished difference Result 23326 states and 32178 transitions. [2024-11-21 22:07:08,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-21 22:07:08,706 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 46.25) internal successors, (185), 3 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 185 [2024-11-21 22:07:08,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:07:08,736 INFO L225 Difference]: With dead ends: 23326 [2024-11-21 22:07:08,736 INFO L226 Difference]: Without dead ends: 14275 [2024-11-21 22:07:08,745 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-21 22:07:08,746 INFO L432 NwaCegarLoop]: 695 mSDtfsCounter, 690 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 3806 mSolverCounterSat, 327 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 690 SdHoareTripleChecker+Valid, 714 SdHoareTripleChecker+Invalid, 4133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 327 IncrementalHoareTripleChecker+Valid, 3806 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-21 22:07:08,746 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [690 Valid, 714 Invalid, 4133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [327 Valid, 3806 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-21 22:07:08,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14275 states. [2024-11-21 22:07:08,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14275 to 14273. [2024-11-21 22:07:08,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14273 states, 14272 states have (on average 1.2780269058295963) internal successors, (18240), 14272 states have internal predecessors, (18240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:07:08,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14273 states to 14273 states and 18240 transitions. [2024-11-21 22:07:08,899 INFO L78 Accepts]: Start accepts. Automaton has 14273 states and 18240 transitions. Word has length 185 [2024-11-21 22:07:08,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:07:08,899 INFO L471 AbstractCegarLoop]: Abstraction has 14273 states and 18240 transitions. [2024-11-21 22:07:08,899 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 46.25) internal successors, (185), 3 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:07:08,899 INFO L276 IsEmpty]: Start isEmpty. Operand 14273 states and 18240 transitions. [2024-11-21 22:07:08,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2024-11-21 22:07:08,901 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:07:08,901 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 22:07:08,901 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-21 22:07:08,902 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:07:08,902 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:07:08,902 INFO L85 PathProgramCache]: Analyzing trace with hash 875379101, now seen corresponding path program 1 times [2024-11-21 22:07:08,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:07:08,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534866668] [2024-11-21 22:07:08,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:07:08,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:07:08,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:07:09,144 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2024-11-21 22:07:09,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:07:09,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534866668] [2024-11-21 22:07:09,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1534866668] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:07:09,146 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:07:09,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-21 22:07:09,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949388] [2024-11-21 22:07:09,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:07:09,147 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:07:09,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:07:09,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:07:09,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:07:09,148 INFO L87 Difference]: Start difference. First operand 14273 states and 18240 transitions. Second operand has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:07:11,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:07:11,334 INFO L93 Difference]: Finished difference Result 34552 states and 45269 transitions. [2024-11-21 22:07:11,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:07:11,335 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 259 [2024-11-21 22:07:11,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:07:11,367 INFO L225 Difference]: With dead ends: 34552 [2024-11-21 22:07:11,367 INFO L226 Difference]: Without dead ends: 21032 [2024-11-21 22:07:11,381 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 [2024-11-21 22:07:11,382 INFO L432 NwaCegarLoop]: 1301 mSDtfsCounter, 773 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2162 mSolverCounterSat, 704 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 773 SdHoareTripleChecker+Valid, 1309 SdHoareTripleChecker+Invalid, 2866 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 704 IncrementalHoareTripleChecker+Valid, 2162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-21 22:07:11,382 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [773 Valid, 1309 Invalid, 2866 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [704 Valid, 2162 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-21 22:07:11,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21032 states. [2024-11-21 22:07:11,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21032 to 20281. [2024-11-21 22:07:11,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20281 states, 20280 states have (on average 1.2444773175542407) internal successors, (25238), 20280 states have internal predecessors, (25238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:07:11,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20281 states to 20281 states and 25238 transitions. [2024-11-21 22:07:11,573 INFO L78 Accepts]: Start accepts. Automaton has 20281 states and 25238 transitions. Word has length 259 [2024-11-21 22:07:11,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:07:11,574 INFO L471 AbstractCegarLoop]: Abstraction has 20281 states and 25238 transitions. [2024-11-21 22:07:11,575 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:07:11,575 INFO L276 IsEmpty]: Start isEmpty. Operand 20281 states and 25238 transitions. [2024-11-21 22:07:11,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2024-11-21 22:07:11,580 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:07:11,581 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 22:07:11,581 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-21 22:07:11,581 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:07:11,581 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:07:11,581 INFO L85 PathProgramCache]: Analyzing trace with hash 2101162795, now seen corresponding path program 1 times [2024-11-21 22:07:11,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:07:11,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172382422] [2024-11-21 22:07:11,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:07:11,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:07:11,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:07:11,887 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2024-11-21 22:07:11,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:07:11,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172382422] [2024-11-21 22:07:11,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172382422] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:07:11,887 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:07:11,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-21 22:07:11,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139088076] [2024-11-21 22:07:11,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:07:11,888 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:07:11,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:07:11,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:07:11,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:07:11,889 INFO L87 Difference]: Start difference. First operand 20281 states and 25238 transitions. Second operand has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:07:14,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:07:14,664 INFO L93 Difference]: Finished difference Result 56331 states and 70972 transitions. [2024-11-21 22:07:14,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:07:14,665 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 268 [2024-11-21 22:07:14,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:07:14,716 INFO L225 Difference]: With dead ends: 56331 [2024-11-21 22:07:14,716 INFO L226 Difference]: Without dead ends: 36803 [2024-11-21 22:07:14,736 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 [2024-11-21 22:07:14,736 INFO L432 NwaCegarLoop]: 1290 mSDtfsCounter, 736 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2325 mSolverCounterSat, 527 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 736 SdHoareTripleChecker+Valid, 1298 SdHoareTripleChecker+Invalid, 2852 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 527 IncrementalHoareTripleChecker+Valid, 2325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-21 22:07:14,736 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [736 Valid, 1298 Invalid, 2852 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [527 Valid, 2325 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-21 22:07:14,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36803 states. [2024-11-21 22:07:14,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36803 to 36052. [2024-11-21 22:07:15,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36052 states, 36051 states have (on average 1.175390419128457) internal successors, (42374), 36051 states have internal predecessors, (42374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:07:15,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36052 states to 36052 states and 42374 transitions. [2024-11-21 22:07:15,038 INFO L78 Accepts]: Start accepts. Automaton has 36052 states and 42374 transitions. Word has length 268 [2024-11-21 22:07:15,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:07:15,038 INFO L471 AbstractCegarLoop]: Abstraction has 36052 states and 42374 transitions. [2024-11-21 22:07:15,038 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:07:15,039 INFO L276 IsEmpty]: Start isEmpty. Operand 36052 states and 42374 transitions. [2024-11-21 22:07:15,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2024-11-21 22:07:15,041 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:07:15,042 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 22:07:15,042 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-21 22:07:15,042 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:07:15,042 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:07:15,042 INFO L85 PathProgramCache]: Analyzing trace with hash -700037012, now seen corresponding path program 1 times [2024-11-21 22:07:15,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:07:15,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135874865] [2024-11-21 22:07:15,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:07:15,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:07:15,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:07:15,332 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2024-11-21 22:07:15,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:07:15,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135874865] [2024-11-21 22:07:15,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [135874865] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:07:15,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:07:15,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-21 22:07:15,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097867982] [2024-11-21 22:07:15,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:07:15,334 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:07:15,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:07:15,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:07:15,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:07:15,335 INFO L87 Difference]: Start difference. First operand 36052 states and 42374 transitions. Second operand has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 2 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:07:17,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:07:17,951 INFO L93 Difference]: Finished difference Result 87122 states and 104494 transitions. [2024-11-21 22:07:17,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:07:17,952 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 2 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 317 [2024-11-21 22:07:17,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:07:18,008 INFO L225 Difference]: With dead ends: 87122 [2024-11-21 22:07:18,009 INFO L226 Difference]: Without dead ends: 51823 [2024-11-21 22:07:18,037 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:07:18,039 INFO L432 NwaCegarLoop]: 428 mSDtfsCounter, 689 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1975 mSolverCounterSat, 856 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 689 SdHoareTripleChecker+Valid, 434 SdHoareTripleChecker+Invalid, 2831 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 856 IncrementalHoareTripleChecker+Valid, 1975 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-21 22:07:18,040 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [689 Valid, 434 Invalid, 2831 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [856 Valid, 1975 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-21 22:07:18,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51823 states. [2024-11-21 22:07:18,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51823 to 46566. [2024-11-21 22:07:18,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46566 states, 46565 states have (on average 1.1605712444969398) internal successors, (54042), 46565 states have internal predecessors, (54042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:07:18,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46566 states to 46566 states and 54042 transitions. [2024-11-21 22:07:18,866 INFO L78 Accepts]: Start accepts. Automaton has 46566 states and 54042 transitions. Word has length 317 [2024-11-21 22:07:18,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:07:18,866 INFO L471 AbstractCegarLoop]: Abstraction has 46566 states and 54042 transitions. [2024-11-21 22:07:18,867 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 2 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:07:18,867 INFO L276 IsEmpty]: Start isEmpty. Operand 46566 states and 54042 transitions. [2024-11-21 22:07:18,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 379 [2024-11-21 22:07:18,874 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:07:18,875 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 22:07:18,875 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-21 22:07:18,875 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:07:18,879 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:07:18,879 INFO L85 PathProgramCache]: Analyzing trace with hash 1439165288, now seen corresponding path program 1 times [2024-11-21 22:07:18,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:07:18,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092987656] [2024-11-21 22:07:18,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:07:18,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:07:18,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:07:19,329 INFO L134 CoverageAnalysis]: Checked inductivity of 365 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2024-11-21 22:07:19,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:07:19,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092987656] [2024-11-21 22:07:19,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1092987656] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:07:19,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:07:19,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-21 22:07:19,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165184927] [2024-11-21 22:07:19,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:07:19,331 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:07:19,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:07:19,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:07:19,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:07:19,332 INFO L87 Difference]: Start difference. First operand 46566 states and 54042 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:07:21,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:07:21,934 INFO L93 Difference]: Finished difference Result 92379 states and 107326 transitions. [2024-11-21 22:07:21,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:07:21,934 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 378 [2024-11-21 22:07:21,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:07:21,980 INFO L225 Difference]: With dead ends: 92379 [2024-11-21 22:07:21,980 INFO L226 Difference]: Without dead ends: 46566 [2024-11-21 22:07:21,994 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 [2024-11-21 22:07:21,995 INFO L432 NwaCegarLoop]: 1180 mSDtfsCounter, 778 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2192 mSolverCounterSat, 531 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 778 SdHoareTripleChecker+Valid, 1188 SdHoareTripleChecker+Invalid, 2723 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 531 IncrementalHoareTripleChecker+Valid, 2192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-21 22:07:21,995 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [778 Valid, 1188 Invalid, 2723 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [531 Valid, 2192 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-21 22:07:22,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46566 states. [2024-11-21 22:07:22,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46566 to 42060. [2024-11-21 22:07:22,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42060 states, 42059 states have (on average 1.1045911695475403) internal successors, (46458), 42059 states have internal predecessors, (46458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:07:22,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42060 states to 42060 states and 46458 transitions. [2024-11-21 22:07:22,594 INFO L78 Accepts]: Start accepts. Automaton has 42060 states and 46458 transitions. Word has length 378 [2024-11-21 22:07:22,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:07:22,595 INFO L471 AbstractCegarLoop]: Abstraction has 42060 states and 46458 transitions. [2024-11-21 22:07:22,595 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:07:22,595 INFO L276 IsEmpty]: Start isEmpty. Operand 42060 states and 46458 transitions. [2024-11-21 22:07:22,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 417 [2024-11-21 22:07:22,599 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:07:22,600 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 22:07:22,600 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-21 22:07:22,600 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:07:22,600 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:07:22,600 INFO L85 PathProgramCache]: Analyzing trace with hash 1199580277, now seen corresponding path program 1 times [2024-11-21 22:07:22,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:07:22,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430464799] [2024-11-21 22:07:22,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:07:22,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:07:22,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:07:22,869 INFO L134 CoverageAnalysis]: Checked inductivity of 414 backedges. 316 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2024-11-21 22:07:22,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:07:22,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430464799] [2024-11-21 22:07:22,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430464799] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:07:22,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:07:22,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-21 22:07:22,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980358983] [2024-11-21 22:07:22,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:07:22,871 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:07:22,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:07:22,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:07:22,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:07:22,872 INFO L87 Difference]: Start difference. First operand 42060 states and 46458 transitions. Second operand has 3 states, 3 states have (on average 106.33333333333333) internal successors, (319), 3 states have internal predecessors, (319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:07:25,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:07:25,090 INFO L93 Difference]: Finished difference Result 85620 states and 94491 transitions. [2024-11-21 22:07:25,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:07:25,090 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 106.33333333333333) internal successors, (319), 3 states have internal predecessors, (319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 416 [2024-11-21 22:07:25,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:07:25,139 INFO L225 Difference]: With dead ends: 85620 [2024-11-21 22:07:25,139 INFO L226 Difference]: Without dead ends: 44313 [2024-11-21 22:07:25,182 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 [2024-11-21 22:07:25,183 INFO L432 NwaCegarLoop]: 999 mSDtfsCounter, 761 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2085 mSolverCounterSat, 548 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 761 SdHoareTripleChecker+Valid, 1006 SdHoareTripleChecker+Invalid, 2633 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 548 IncrementalHoareTripleChecker+Valid, 2085 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-21 22:07:25,183 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [761 Valid, 1006 Invalid, 2633 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [548 Valid, 2085 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-21 22:07:25,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44313 states. [2024-11-21 22:07:25,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44313 to 42060. [2024-11-21 22:07:25,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42060 states, 42059 states have (on average 1.0845003447537982) internal successors, (45613), 42059 states have internal predecessors, (45613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:07:25,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42060 states to 42060 states and 45613 transitions. [2024-11-21 22:07:25,896 INFO L78 Accepts]: Start accepts. Automaton has 42060 states and 45613 transitions. Word has length 416 [2024-11-21 22:07:25,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:07:25,896 INFO L471 AbstractCegarLoop]: Abstraction has 42060 states and 45613 transitions. [2024-11-21 22:07:25,897 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 106.33333333333333) internal successors, (319), 3 states have internal predecessors, (319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:07:25,897 INFO L276 IsEmpty]: Start isEmpty. Operand 42060 states and 45613 transitions. [2024-11-21 22:07:25,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 431 [2024-11-21 22:07:25,906 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:07:25,906 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 22:07:25,906 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-21 22:07:25,906 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:07:25,907 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:07:25,907 INFO L85 PathProgramCache]: Analyzing trace with hash 1965759442, now seen corresponding path program 1 times [2024-11-21 22:07:25,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:07:25,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491177971] [2024-11-21 22:07:25,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:07:25,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:07:25,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:07:26,111 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 416 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-21 22:07:26,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:07:26,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491177971] [2024-11-21 22:07:26,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1491177971] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:07:26,112 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:07:26,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-21 22:07:26,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793574281] [2024-11-21 22:07:26,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:07:26,113 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:07:26,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:07:26,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:07:26,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:07:26,114 INFO L87 Difference]: Start difference. First operand 42060 states and 45613 transitions. Second operand has 3 states, 3 states have (on average 135.0) internal successors, (405), 3 states have internal predecessors, (405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:07:28,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:07:28,829 INFO L93 Difference]: Finished difference Result 90877 states and 98448 transitions. [2024-11-21 22:07:28,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:07:28,830 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 135.0) internal successors, (405), 3 states have internal predecessors, (405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 430 [2024-11-21 22:07:28,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:07:28,880 INFO L225 Difference]: With dead ends: 90877 [2024-11-21 22:07:28,880 INFO L226 Difference]: Without dead ends: 49570 [2024-11-21 22:07:28,902 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 [2024-11-21 22:07:28,903 INFO L432 NwaCegarLoop]: 1218 mSDtfsCounter, 655 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2606 mSolverCounterSat, 305 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 655 SdHoareTripleChecker+Valid, 1225 SdHoareTripleChecker+Invalid, 2911 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 305 IncrementalHoareTripleChecker+Valid, 2606 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-21 22:07:28,903 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [655 Valid, 1225 Invalid, 2911 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [305 Valid, 2606 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-21 22:07:28,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49570 states. [2024-11-21 22:07:29,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49570 to 47317. [2024-11-21 22:07:29,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47317 states, 47316 states have (on average 1.0783033223433933) internal successors, (51021), 47316 states have internal predecessors, (51021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:07:29,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47317 states to 47317 states and 51021 transitions. [2024-11-21 22:07:29,740 INFO L78 Accepts]: Start accepts. Automaton has 47317 states and 51021 transitions. Word has length 430 [2024-11-21 22:07:29,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:07:29,741 INFO L471 AbstractCegarLoop]: Abstraction has 47317 states and 51021 transitions. [2024-11-21 22:07:29,741 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 135.0) internal successors, (405), 3 states have internal predecessors, (405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:07:29,742 INFO L276 IsEmpty]: Start isEmpty. Operand 47317 states and 51021 transitions. [2024-11-21 22:07:29,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 435 [2024-11-21 22:07:29,751 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:07:29,751 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 22:07:29,752 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-21 22:07:29,755 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:07:29,755 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:07:29,756 INFO L85 PathProgramCache]: Analyzing trace with hash -1910124132, now seen corresponding path program 1 times [2024-11-21 22:07:29,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:07:29,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517242444] [2024-11-21 22:07:29,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:07:29,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:07:29,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:07:30,352 INFO L134 CoverageAnalysis]: Checked inductivity of 446 backedges. 118 proven. 257 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2024-11-21 22:07:30,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:07:30,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517242444] [2024-11-21 22:07:30,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [517242444] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-21 22:07:30,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1278652820] [2024-11-21 22:07:30,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:07:30,352 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 22:07:30,352 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-21 22:07:30,354 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-21 22:07:30,355 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-21 22:07:30,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:07:30,484 INFO L255 TraceCheckSpWp]: Trace formula consists of 560 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-21 22:07:30,494 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-21 22:07:30,667 INFO L134 CoverageAnalysis]: Checked inductivity of 446 backedges. 334 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-21 22:07:30,667 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-21 22:07:30,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1278652820] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:07:30,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-21 22:07:30,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-21 22:07:30,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556028402] [2024-11-21 22:07:30,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:07:30,668 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:07:30,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:07:30,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:07:30,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-21 22:07:30,668 INFO L87 Difference]: Start difference. First operand 47317 states and 51021 transitions. Second operand has 3 states, 3 states have (on average 107.66666666666667) internal successors, (323), 3 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:07:33,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:07:33,484 INFO L93 Difference]: Finished difference Result 126925 states and 137528 transitions. [2024-11-21 22:07:33,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:07:33,485 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 107.66666666666667) internal successors, (323), 3 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 434 [2024-11-21 22:07:33,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:07:33,560 INFO L225 Difference]: With dead ends: 126925 [2024-11-21 22:07:33,561 INFO L226 Difference]: Without dead ends: 80361 [2024-11-21 22:07:33,587 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 437 GetRequests, 433 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-21 22:07:33,587 INFO L432 NwaCegarLoop]: 1314 mSDtfsCounter, 611 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2355 mSolverCounterSat, 525 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 611 SdHoareTripleChecker+Valid, 1322 SdHoareTripleChecker+Invalid, 2880 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 525 IncrementalHoareTripleChecker+Valid, 2355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-21 22:07:33,587 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [611 Valid, 1322 Invalid, 2880 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [525 Valid, 2355 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-21 22:07:33,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80361 states. [2024-11-21 22:07:34,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80361 to 69847. [2024-11-21 22:07:34,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69847 states, 69846 states have (on average 1.066345961114452) internal successors, (74480), 69846 states have internal predecessors, (74480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:07:34,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69847 states to 69847 states and 74480 transitions. [2024-11-21 22:07:34,495 INFO L78 Accepts]: Start accepts. Automaton has 69847 states and 74480 transitions. Word has length 434 [2024-11-21 22:07:34,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:07:34,496 INFO L471 AbstractCegarLoop]: Abstraction has 69847 states and 74480 transitions. [2024-11-21 22:07:34,496 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 107.66666666666667) internal successors, (323), 3 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:07:34,496 INFO L276 IsEmpty]: Start isEmpty. Operand 69847 states and 74480 transitions. [2024-11-21 22:07:34,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 503 [2024-11-21 22:07:34,506 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:07:34,506 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 22:07:34,514 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-21 22:07:34,707 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-21 22:07:34,707 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:07:34,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:07:34,708 INFO L85 PathProgramCache]: Analyzing trace with hash -1355703506, now seen corresponding path program 1 times [2024-11-21 22:07:34,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:07:34,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038494190] [2024-11-21 22:07:34,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:07:34,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:07:34,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:07:35,346 INFO L134 CoverageAnalysis]: Checked inductivity of 739 backedges. 597 proven. 0 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2024-11-21 22:07:35,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:07:35,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038494190] [2024-11-21 22:07:35,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038494190] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:07:35,346 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:07:35,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-21 22:07:35,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084827831] [2024-11-21 22:07:35,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:07:35,347 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:07:35,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:07:35,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:07:35,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:07:35,349 INFO L87 Difference]: Start difference. First operand 69847 states and 74480 transitions. Second operand has 3 states, 3 states have (on average 120.66666666666667) internal successors, (362), 3 states have internal predecessors, (362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:07:37,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:07:37,816 INFO L93 Difference]: Finished difference Result 161471 states and 172772 transitions. [2024-11-21 22:07:37,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:07:37,816 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 120.66666666666667) internal successors, (362), 3 states have internal predecessors, (362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 502 [2024-11-21 22:07:37,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:07:37,906 INFO L225 Difference]: With dead ends: 161471 [2024-11-21 22:07:37,906 INFO L226 Difference]: Without dead ends: 92377 [2024-11-21 22:07:37,925 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 [2024-11-21 22:07:37,925 INFO L432 NwaCegarLoop]: 1270 mSDtfsCounter, 669 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2236 mSolverCounterSat, 119 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 669 SdHoareTripleChecker+Valid, 1278 SdHoareTripleChecker+Invalid, 2355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 119 IncrementalHoareTripleChecker+Valid, 2236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-21 22:07:37,926 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [669 Valid, 1278 Invalid, 2355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [119 Valid, 2236 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-21 22:07:37,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92377 states. [2024-11-21 22:07:38,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92377 to 90124. [2024-11-21 22:07:38,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90124 states, 90123 states have (on average 1.0626920985763901) internal successors, (95773), 90123 states have internal predecessors, (95773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:07:38,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90124 states to 90124 states and 95773 transitions. [2024-11-21 22:07:38,813 INFO L78 Accepts]: Start accepts. Automaton has 90124 states and 95773 transitions. Word has length 502 [2024-11-21 22:07:38,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:07:38,813 INFO L471 AbstractCegarLoop]: Abstraction has 90124 states and 95773 transitions. [2024-11-21 22:07:38,813 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 120.66666666666667) internal successors, (362), 3 states have internal predecessors, (362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:07:38,813 INFO L276 IsEmpty]: Start isEmpty. Operand 90124 states and 95773 transitions. [2024-11-21 22:07:38,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 520 [2024-11-21 22:07:38,820 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:07:38,820 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 22:07:38,821 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-21 22:07:38,821 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:07:38,821 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:07:38,822 INFO L85 PathProgramCache]: Analyzing trace with hash 1778876796, now seen corresponding path program 1 times [2024-11-21 22:07:38,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:07:38,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57429856] [2024-11-21 22:07:38,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:07:38,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:07:38,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:07:39,020 INFO L134 CoverageAnalysis]: Checked inductivity of 686 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 583 trivial. 0 not checked. [2024-11-21 22:07:39,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:07:39,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57429856] [2024-11-21 22:07:39,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [57429856] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:07:39,021 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:07:39,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-21 22:07:39,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484645866] [2024-11-21 22:07:39,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:07:39,021 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:07:39,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:07:39,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:07:39,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:07:39,022 INFO L87 Difference]: Start difference. First operand 90124 states and 95773 transitions. Second operand has 3 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:07:41,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:07:41,930 INFO L93 Difference]: Finished difference Result 195266 states and 207937 transitions. [2024-11-21 22:07:41,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:07:41,931 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 519 [2024-11-21 22:07:41,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:07:42,060 INFO L225 Difference]: With dead ends: 195266 [2024-11-21 22:07:42,061 INFO L226 Difference]: Without dead ends: 105895 [2024-11-21 22:07:42,122 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 [2024-11-21 22:07:42,122 INFO L432 NwaCegarLoop]: 1109 mSDtfsCounter, 846 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2198 mSolverCounterSat, 403 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 846 SdHoareTripleChecker+Valid, 1117 SdHoareTripleChecker+Invalid, 2601 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 403 IncrementalHoareTripleChecker+Valid, 2198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-21 22:07:42,122 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [846 Valid, 1117 Invalid, 2601 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [403 Valid, 2198 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-21 22:07:42,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105895 states. [2024-11-21 22:07:43,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105895 to 104393. [2024-11-21 22:07:43,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104393 states, 104392 states have (on average 1.0607230439114108) internal successors, (110731), 104392 states have internal predecessors, (110731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:07:43,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104393 states to 104393 states and 110731 transitions. [2024-11-21 22:07:43,472 INFO L78 Accepts]: Start accepts. Automaton has 104393 states and 110731 transitions. Word has length 519 [2024-11-21 22:07:43,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:07:43,472 INFO L471 AbstractCegarLoop]: Abstraction has 104393 states and 110731 transitions. [2024-11-21 22:07:43,472 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:07:43,472 INFO L276 IsEmpty]: Start isEmpty. Operand 104393 states and 110731 transitions. [2024-11-21 22:07:43,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 675 [2024-11-21 22:07:43,489 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:07:43,490 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 22:07:43,490 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-21 22:07:43,490 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:07:43,496 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:07:43,497 INFO L85 PathProgramCache]: Analyzing trace with hash 1593961, now seen corresponding path program 1 times [2024-11-21 22:07:43,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:07:43,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987797296] [2024-11-21 22:07:43,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:07:43,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:07:43,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:07:45,387 INFO L134 CoverageAnalysis]: Checked inductivity of 914 backedges. 888 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-21 22:07:45,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:07:45,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987797296] [2024-11-21 22:07:45,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987797296] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:07:45,389 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:07:45,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-21 22:07:45,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204470649] [2024-11-21 22:07:45,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:07:45,391 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-21 22:07:45,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:07:45,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-21 22:07:45,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-21 22:07:45,392 INFO L87 Difference]: Start difference. First operand 104393 states and 110731 transitions. Second operand has 6 states, 6 states have (on average 108.16666666666667) internal successors, (649), 5 states have internal predecessors, (649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:07:50,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:07:50,473 INFO L93 Difference]: Finished difference Result 222302 states and 235717 transitions. [2024-11-21 22:07:50,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-21 22:07:50,473 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 108.16666666666667) internal successors, (649), 5 states have internal predecessors, (649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 674 [2024-11-21 22:07:50,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:07:50,617 INFO L225 Difference]: With dead ends: 222302 [2024-11-21 22:07:50,617 INFO L226 Difference]: Without dead ends: 118662 [2024-11-21 22:07:50,647 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-21 22:07:50,648 INFO L432 NwaCegarLoop]: 309 mSDtfsCounter, 2049 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 8354 mSolverCounterSat, 495 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2049 SdHoareTripleChecker+Valid, 534 SdHoareTripleChecker+Invalid, 8849 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 495 IncrementalHoareTripleChecker+Valid, 8354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2024-11-21 22:07:50,648 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2049 Valid, 534 Invalid, 8849 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [495 Valid, 8354 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2024-11-21 22:07:50,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118662 states. [2024-11-21 22:07:51,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118662 to 105895. [2024-11-21 22:07:51,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105895 states, 105894 states have (on average 1.0600317298430506) internal successors, (112251), 105894 states have internal predecessors, (112251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:07:51,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105895 states to 105895 states and 112251 transitions. [2024-11-21 22:07:51,796 INFO L78 Accepts]: Start accepts. Automaton has 105895 states and 112251 transitions. Word has length 674 [2024-11-21 22:07:51,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:07:51,796 INFO L471 AbstractCegarLoop]: Abstraction has 105895 states and 112251 transitions. [2024-11-21 22:07:51,796 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 108.16666666666667) internal successors, (649), 5 states have internal predecessors, (649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:07:51,797 INFO L276 IsEmpty]: Start isEmpty. Operand 105895 states and 112251 transitions. [2024-11-21 22:07:51,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 698 [2024-11-21 22:07:51,814 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:07:51,814 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 22:07:51,814 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-21 22:07:51,814 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:07:51,815 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:07:51,815 INFO L85 PathProgramCache]: Analyzing trace with hash 876374999, now seen corresponding path program 1 times [2024-11-21 22:07:51,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:07:51,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774713474] [2024-11-21 22:07:51,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:07:51,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:07:51,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:07:53,099 INFO L134 CoverageAnalysis]: Checked inductivity of 984 backedges. 818 proven. 0 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2024-11-21 22:07:53,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:07:53,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774713474] [2024-11-21 22:07:53,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [774713474] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:07:53,099 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:07:53,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-21 22:07:53,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543486844] [2024-11-21 22:07:53,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:07:53,100 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:07:53,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:07:53,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:07:53,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:07:53,102 INFO L87 Difference]: Start difference. First operand 105895 states and 112251 transitions. Second operand has 3 states, 3 states have (on average 177.66666666666666) internal successors, (533), 3 states have internal predecessors, (533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:07:55,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:07:55,725 INFO L93 Difference]: Finished difference Result 221551 states and 235025 transitions. [2024-11-21 22:07:55,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:07:55,725 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 177.66666666666666) internal successors, (533), 3 states have internal predecessors, (533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 697 [2024-11-21 22:07:55,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:07:55,861 INFO L225 Difference]: With dead ends: 221551 [2024-11-21 22:07:55,862 INFO L226 Difference]: Without dead ends: 116409 [2024-11-21 22:07:55,922 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 [2024-11-21 22:07:55,927 INFO L432 NwaCegarLoop]: 1354 mSDtfsCounter, 583 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2212 mSolverCounterSat, 229 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 583 SdHoareTripleChecker+Valid, 1362 SdHoareTripleChecker+Invalid, 2441 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 229 IncrementalHoareTripleChecker+Valid, 2212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-21 22:07:55,927 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [583 Valid, 1362 Invalid, 2441 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [229 Valid, 2212 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-21 22:07:56,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116409 states. [2024-11-21 22:07:57,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116409 to 115658. [2024-11-21 22:07:57,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115658 states, 115657 states have (on average 1.0591663280216501) internal successors, (122500), 115657 states have internal predecessors, (122500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:07:57,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115658 states to 115658 states and 122500 transitions. [2024-11-21 22:07:57,455 INFO L78 Accepts]: Start accepts. Automaton has 115658 states and 122500 transitions. Word has length 697 [2024-11-21 22:07:57,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:07:57,455 INFO L471 AbstractCegarLoop]: Abstraction has 115658 states and 122500 transitions. [2024-11-21 22:07:57,456 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 177.66666666666666) internal successors, (533), 3 states have internal predecessors, (533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:07:57,456 INFO L276 IsEmpty]: Start isEmpty. Operand 115658 states and 122500 transitions. [2024-11-21 22:07:57,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 731 [2024-11-21 22:07:57,479 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:07:57,480 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 22:07:57,480 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-21 22:07:57,480 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:07:57,480 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:07:57,481 INFO L85 PathProgramCache]: Analyzing trace with hash -1568677755, now seen corresponding path program 1 times [2024-11-21 22:07:57,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:07:57,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622721497] [2024-11-21 22:07:57,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:07:57,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:07:57,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:07:58,249 INFO L134 CoverageAnalysis]: Checked inductivity of 1146 backedges. 720 proven. 0 refuted. 0 times theorem prover too weak. 426 trivial. 0 not checked. [2024-11-21 22:07:58,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:07:58,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622721497] [2024-11-21 22:07:58,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1622721497] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:07:58,250 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:07:58,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-21 22:07:58,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972891333] [2024-11-21 22:07:58,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:07:58,250 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:07:58,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:07:58,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:07:58,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:07:58,251 INFO L87 Difference]: Start difference. First operand 115658 states and 122500 transitions. Second operand has 3 states, 3 states have (on average 145.33333333333334) internal successors, (436), 3 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:08:01,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:08:01,486 INFO L93 Difference]: Finished difference Result 280880 states and 298463 transitions. [2024-11-21 22:08:01,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:08:01,486 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 145.33333333333334) internal successors, (436), 3 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 730 [2024-11-21 22:08:01,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:08:01,654 INFO L225 Difference]: With dead ends: 280880 [2024-11-21 22:08:01,654 INFO L226 Difference]: Without dead ends: 165975 [2024-11-21 22:08:01,689 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 [2024-11-21 22:08:01,690 INFO L432 NwaCegarLoop]: 420 mSDtfsCounter, 732 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 2277 mSolverCounterSat, 641 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 732 SdHoareTripleChecker+Valid, 426 SdHoareTripleChecker+Invalid, 2918 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 641 IncrementalHoareTripleChecker+Valid, 2277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-21 22:08:01,690 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [732 Valid, 426 Invalid, 2918 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [641 Valid, 2277 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-21 22:08:01,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165975 states. [2024-11-21 22:08:03,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165975 to 161469. [2024-11-21 22:08:03,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161469 states, 161468 states have (on average 1.056847177149652) internal successors, (170647), 161468 states have internal predecessors, (170647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:08:03,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161469 states to 161469 states and 170647 transitions. [2024-11-21 22:08:03,800 INFO L78 Accepts]: Start accepts. Automaton has 161469 states and 170647 transitions. Word has length 730 [2024-11-21 22:08:03,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:08:03,801 INFO L471 AbstractCegarLoop]: Abstraction has 161469 states and 170647 transitions. [2024-11-21 22:08:03,801 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 145.33333333333334) internal successors, (436), 3 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:08:03,801 INFO L276 IsEmpty]: Start isEmpty. Operand 161469 states and 170647 transitions. [2024-11-21 22:08:03,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 773 [2024-11-21 22:08:03,829 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:08:03,830 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 22:08:03,830 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-21 22:08:03,830 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:08:03,830 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:08:03,830 INFO L85 PathProgramCache]: Analyzing trace with hash -451339748, now seen corresponding path program 1 times [2024-11-21 22:08:03,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:08:03,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872097718] [2024-11-21 22:08:03,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:08:03,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:08:03,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:08:04,216 INFO L134 CoverageAnalysis]: Checked inductivity of 1336 backedges. 1013 proven. 0 refuted. 0 times theorem prover too weak. 323 trivial. 0 not checked. [2024-11-21 22:08:04,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:08:04,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872097718] [2024-11-21 22:08:04,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872097718] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:08:04,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:08:04,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-21 22:08:04,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115104108] [2024-11-21 22:08:04,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:08:04,218 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:08:04,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:08:04,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:08:04,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:08:04,219 INFO L87 Difference]: Start difference. First operand 161469 states and 170647 transitions. Second operand has 3 states, 3 states have (on average 159.33333333333334) internal successors, (478), 3 states have internal predecessors, (478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:08:07,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:08:07,429 INFO L93 Difference]: Finished difference Result 324438 states and 342804 transitions. [2024-11-21 22:08:07,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:08:07,430 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 159.33333333333334) internal successors, (478), 3 states have internal predecessors, (478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 772 [2024-11-21 22:08:07,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:08:07,633 INFO L225 Difference]: With dead ends: 324438 [2024-11-21 22:08:07,634 INFO L226 Difference]: Without dead ends: 163722 [2024-11-21 22:08:07,721 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 [2024-11-21 22:08:07,721 INFO L432 NwaCegarLoop]: 214 mSDtfsCounter, 761 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 2230 mSolverCounterSat, 435 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 761 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 2665 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 435 IncrementalHoareTripleChecker+Valid, 2230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-21 22:08:07,721 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [761 Valid, 220 Invalid, 2665 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [435 Valid, 2230 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-21 22:08:07,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163722 states. [2024-11-21 22:08:09,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163722 to 150204. [2024-11-21 22:08:09,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150204 states, 150203 states have (on average 1.0477686863777687) internal successors, (157378), 150203 states have internal predecessors, (157378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:08:09,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150204 states to 150204 states and 157378 transitions. [2024-11-21 22:08:09,917 INFO L78 Accepts]: Start accepts. Automaton has 150204 states and 157378 transitions. Word has length 772 [2024-11-21 22:08:09,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:08:09,918 INFO L471 AbstractCegarLoop]: Abstraction has 150204 states and 157378 transitions. [2024-11-21 22:08:09,918 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 159.33333333333334) internal successors, (478), 3 states have internal predecessors, (478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:08:09,918 INFO L276 IsEmpty]: Start isEmpty. Operand 150204 states and 157378 transitions. [2024-11-21 22:08:09,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 810 [2024-11-21 22:08:09,935 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:08:09,935 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 22:08:09,936 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-21 22:08:09,936 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:08:09,936 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:08:09,936 INFO L85 PathProgramCache]: Analyzing trace with hash -859800645, now seen corresponding path program 1 times [2024-11-21 22:08:09,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:08:09,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701705505] [2024-11-21 22:08:09,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:08:09,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:08:10,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:08:11,032 INFO L134 CoverageAnalysis]: Checked inductivity of 1468 backedges. 1068 proven. 0 refuted. 0 times theorem prover too weak. 400 trivial. 0 not checked. [2024-11-21 22:08:11,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:08:11,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701705505] [2024-11-21 22:08:11,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701705505] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:08:11,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:08:11,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-21 22:08:11,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286883542] [2024-11-21 22:08:11,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:08:11,034 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:08:11,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:08:11,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:08:11,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:08:11,036 INFO L87 Difference]: Start difference. First operand 150204 states and 157378 transitions. Second operand has 3 states, 3 states have (on average 177.0) internal successors, (531), 3 states have internal predecessors, (531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:08:14,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:08:14,056 INFO L93 Difference]: Finished difference Result 309418 states and 324095 transitions. [2024-11-21 22:08:14,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:08:14,056 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 177.0) internal successors, (531), 3 states have internal predecessors, (531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 809 [2024-11-21 22:08:14,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted.