./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.Huffman_dec.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.Huffman_dec.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-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 64bit --witnessprinter.graph.data.programhash 3b0071c78088f9c96f862cb661d2ce94895d7fb3336b3cc889e5292b345efcdd --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 00:19:45,861 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 00:19:45,928 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-20 00:19:45,932 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 00:19:45,933 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 00:19:45,970 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 00:19:45,971 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 00:19:45,971 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 00:19:45,972 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 00:19:45,972 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 00:19:45,973 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 00:19:45,973 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 00:19:45,974 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 00:19:45,974 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 00:19:45,974 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 00:19:45,975 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 00:19:45,975 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-20 00:19:45,975 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 00:19:45,976 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 00:19:45,976 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-20 00:19:45,976 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 00:19:45,977 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-20 00:19:45,977 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 00:19:45,978 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 00:19:45,978 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 00:19:45,978 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 00:19:45,978 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 00:19:45,979 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 00:19:45,979 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 00:19:45,979 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 00:19:45,980 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 00:19:45,980 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 00:19:45,980 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-20 00:19:45,981 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 00:19:45,981 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 00:19:45,981 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 00:19:45,981 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 00:19:45,982 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 00:19:45,982 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 00:19:45,982 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3b0071c78088f9c96f862cb661d2ce94895d7fb3336b3cc889e5292b345efcdd [2024-11-20 00:19:46,228 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 00:19:46,257 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 00:19:46,260 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 00:19:46,262 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 00:19:46,262 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 00:19:46,264 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.Huffman_dec.c [2024-11-20 00:19:47,830 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 00:19:48,088 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 00:19:48,089 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.Huffman_dec.c [2024-11-20 00:19:48,103 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed9409fb2/54e9a9fcede0426bb5057ace0ae09c3d/FLAG65fbeb874 [2024-11-20 00:19:48,406 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed9409fb2/54e9a9fcede0426bb5057ace0ae09c3d [2024-11-20 00:19:48,409 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 00:19:48,410 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 00:19:48,411 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 00:19:48,411 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 00:19:48,416 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 00:19:48,417 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:19:48" (1/1) ... [2024-11-20 00:19:48,418 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64dfb95c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:19:48, skipping insertion in model container [2024-11-20 00:19:48,418 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:19:48" (1/1) ... [2024-11-20 00:19:48,467 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 00:19:48,669 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/hardware-verification-bv/btor2c-lazyMod.Huffman_dec.c[1251,1264] [2024-11-20 00:19:48,904 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 00:19:48,914 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 00:19:48,923 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/hardware-verification-bv/btor2c-lazyMod.Huffman_dec.c[1251,1264] [2024-11-20 00:19:49,034 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 00:19:49,059 INFO L204 MainTranslator]: Completed translation [2024-11-20 00:19:49,060 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:19:49 WrapperNode [2024-11-20 00:19:49,060 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 00:19:49,061 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 00:19:49,062 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 00:19:49,062 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 00:19:49,069 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:19:49" (1/1) ... [2024-11-20 00:19:49,107 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:19:49" (1/1) ... [2024-11-20 00:19:49,250 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1335 [2024-11-20 00:19:49,251 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 00:19:49,252 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 00:19:49,252 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 00:19:49,252 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 00:19:49,263 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:19:49" (1/1) ... [2024-11-20 00:19:49,264 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:19:49" (1/1) ... [2024-11-20 00:19:49,292 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:19:49" (1/1) ... [2024-11-20 00:19:49,406 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]. [2024-11-20 00:19:49,406 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:19:49" (1/1) ... [2024-11-20 00:19:49,406 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:19:49" (1/1) ... [2024-11-20 00:19:49,499 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:19:49" (1/1) ... [2024-11-20 00:19:49,514 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:19:49" (1/1) ... [2024-11-20 00:19:49,535 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:19:49" (1/1) ... [2024-11-20 00:19:49,550 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:19:49" (1/1) ... [2024-11-20 00:19:49,577 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 00:19:49,578 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 00:19:49,579 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 00:19:49,579 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 00:19:49,580 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:19:49" (1/1) ... [2024-11-20 00:19:49,586 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 00:19:49,598 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 00:19:49,615 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) [2024-11-20 00:19:49,620 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 [2024-11-20 00:19:49,668 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 00:19:49,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-20 00:19:49,668 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 00:19:49,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 00:19:49,907 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 00:19:49,909 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 00:19:51,626 INFO L? ?]: Removed 791 outVars from TransFormulas that were not future-live. [2024-11-20 00:19:51,626 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 00:19:51,653 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 00:19:51,655 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-20 00:19:51,655 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:19:51 BoogieIcfgContainer [2024-11-20 00:19:51,657 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 00:19:51,659 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 00:19:51,660 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 00:19:51,663 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 00:19:51,663 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 12:19:48" (1/3) ... [2024-11-20 00:19:51,664 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dbcd012 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:19:51, skipping insertion in model container [2024-11-20 00:19:51,664 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:19:49" (2/3) ... [2024-11-20 00:19:51,665 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dbcd012 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:19:51, skipping insertion in model container [2024-11-20 00:19:51,665 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:19:51" (3/3) ... [2024-11-20 00:19:51,667 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.Huffman_dec.c [2024-11-20 00:19:51,686 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 00:19:51,687 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-20 00:19:51,784 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 00:19:51,791 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;@15134e64, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 00:19:51,791 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-20 00:19:51,796 INFO L276 IsEmpty]: Start isEmpty. Operand has 290 states, 288 states have (on average 1.4965277777777777) internal successors, (431), 289 states have internal predecessors, (431), 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) [2024-11-20 00:19:51,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-20 00:19:51,807 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:19:51,808 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:19:51,808 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:19:51,814 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:19:51,814 INFO L85 PathProgramCache]: Analyzing trace with hash -666599551, now seen corresponding path program 1 times [2024-11-20 00:19:51,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:19:51,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462099353] [2024-11-20 00:19:51,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:19:51,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:19:52,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:53,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:19:53,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:19:53,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462099353] [2024-11-20 00:19:53,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1462099353] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:19:53,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:19:53,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 00:19:53,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390858869] [2024-11-20 00:19:53,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:19:53,190 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 00:19:53,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:19:53,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 00:19:53,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 00:19:53,222 INFO L87 Difference]: Start difference. First operand has 290 states, 288 states have (on average 1.4965277777777777) internal successors, (431), 289 states have internal predecessors, (431), 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 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 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) [2024-11-20 00:19:53,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:19:53,342 INFO L93 Difference]: Finished difference Result 569 states and 849 transitions. [2024-11-20 00:19:53,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 00:19:53,349 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 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 71 [2024-11-20 00:19:53,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:19:53,364 INFO L225 Difference]: With dead ends: 569 [2024-11-20 00:19:53,365 INFO L226 Difference]: Without dead ends: 289 [2024-11-20 00:19:53,369 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 00:19:53,372 INFO L432 NwaCegarLoop]: 425 mSDtfsCounter, 0 mSDsluCounter, 844 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1269 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 00:19:53,373 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1269 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 00:19:53,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2024-11-20 00:19:53,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 289. [2024-11-20 00:19:53,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 289 states, 288 states have (on average 1.4895833333333333) internal successors, (429), 288 states have internal predecessors, (429), 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) [2024-11-20 00:19:53,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 429 transitions. [2024-11-20 00:19:53,424 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 429 transitions. Word has length 71 [2024-11-20 00:19:53,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:19:53,428 INFO L471 AbstractCegarLoop]: Abstraction has 289 states and 429 transitions. [2024-11-20 00:19:53,429 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 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) [2024-11-20 00:19:53,429 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 429 transitions. [2024-11-20 00:19:53,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-20 00:19:53,431 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:19:53,431 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:19:53,432 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 00:19:53,432 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:19:53,433 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:19:53,433 INFO L85 PathProgramCache]: Analyzing trace with hash 811945981, now seen corresponding path program 1 times [2024-11-20 00:19:53,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:19:53,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458421574] [2024-11-20 00:19:53,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:19:53,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:19:53,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:54,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:19:54,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:19:54,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458421574] [2024-11-20 00:19:54,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458421574] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:19:54,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:19:54,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 00:19:54,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251446828] [2024-11-20 00:19:54,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:19:54,015 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 00:19:54,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:19:54,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 00:19:54,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 00:19:54,016 INFO L87 Difference]: Start difference. First operand 289 states and 429 transitions. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 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) [2024-11-20 00:19:54,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:19:54,075 INFO L93 Difference]: Finished difference Result 570 states and 847 transitions. [2024-11-20 00:19:54,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 00:19:54,076 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 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 72 [2024-11-20 00:19:54,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:19:54,078 INFO L225 Difference]: With dead ends: 570 [2024-11-20 00:19:54,078 INFO L226 Difference]: Without dead ends: 291 [2024-11-20 00:19:54,079 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 00:19:54,080 INFO L432 NwaCegarLoop]: 425 mSDtfsCounter, 0 mSDsluCounter, 840 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1265 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 00:19:54,081 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1265 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 00:19:54,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2024-11-20 00:19:54,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 291. [2024-11-20 00:19:54,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 291 states, 290 states have (on average 1.486206896551724) internal successors, (431), 290 states have internal predecessors, (431), 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) [2024-11-20 00:19:54,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 431 transitions. [2024-11-20 00:19:54,093 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 431 transitions. Word has length 72 [2024-11-20 00:19:54,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:19:54,095 INFO L471 AbstractCegarLoop]: Abstraction has 291 states and 431 transitions. [2024-11-20 00:19:54,095 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 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) [2024-11-20 00:19:54,095 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 431 transitions. [2024-11-20 00:19:54,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-20 00:19:54,097 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:19:54,099 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:19:54,100 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-20 00:19:54,100 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:19:54,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:19:54,102 INFO L85 PathProgramCache]: Analyzing trace with hash -1697443878, now seen corresponding path program 1 times [2024-11-20 00:19:54,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:19:54,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940287046] [2024-11-20 00:19:54,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:19:54,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:19:54,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:19:55,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:19:55,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:19:55,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940287046] [2024-11-20 00:19:55,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [940287046] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:19:55,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:19:55,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-20 00:19:55,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180818993] [2024-11-20 00:19:55,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:19:55,499 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 00:19:55,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:19:55,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 00:19:55,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-20 00:19:55,501 INFO L87 Difference]: Start difference. First operand 291 states and 431 transitions. Second operand has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 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) [2024-11-20 00:19:55,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:19:55,571 INFO L93 Difference]: Finished difference Result 574 states and 851 transitions. [2024-11-20 00:19:55,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 00:19:55,572 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 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 73 [2024-11-20 00:19:55,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:19:55,573 INFO L225 Difference]: With dead ends: 574 [2024-11-20 00:19:55,573 INFO L226 Difference]: Without dead ends: 293 [2024-11-20 00:19:55,574 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-20 00:19:55,579 INFO L432 NwaCegarLoop]: 425 mSDtfsCounter, 365 mSDsluCounter, 1259 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 365 SdHoareTripleChecker+Valid, 1684 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 00:19:55,580 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [365 Valid, 1684 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 00:19:55,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2024-11-20 00:19:55,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 293. [2024-11-20 00:19:55,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 292 states have (on average 1.4828767123287672) internal successors, (433), 292 states have internal predecessors, (433), 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) [2024-11-20 00:19:55,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 433 transitions. [2024-11-20 00:19:55,603 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 433 transitions. Word has length 73 [2024-11-20 00:19:55,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:19:55,604 INFO L471 AbstractCegarLoop]: Abstraction has 293 states and 433 transitions. [2024-11-20 00:19:55,605 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 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) [2024-11-20 00:19:55,605 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 433 transitions. [2024-11-20 00:19:55,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-20 00:19:55,609 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:19:55,610 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:19:55,610 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-20 00:19:55,610 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:19:55,611 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:19:55,611 INFO L85 PathProgramCache]: Analyzing trace with hash -172265436, now seen corresponding path program 1 times [2024-11-20 00:19:55,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:19:55,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250876214] [2024-11-20 00:19:55,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:19:55,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:19:56,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:20:06,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:20:06,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:20:06,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250876214] [2024-11-20 00:20:06,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [250876214] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:20:06,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:20:06,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 00:20:06,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761375503] [2024-11-20 00:20:06,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:20:06,413 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 00:20:06,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:20:06,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 00:20:06,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 00:20:06,415 INFO L87 Difference]: Start difference. First operand 293 states and 433 transitions. Second operand has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 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) [2024-11-20 00:20:07,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:20:07,068 INFO L93 Difference]: Finished difference Result 576 states and 852 transitions. [2024-11-20 00:20:07,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 00:20:07,069 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 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 74 [2024-11-20 00:20:07,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:20:07,070 INFO L225 Difference]: With dead ends: 576 [2024-11-20 00:20:07,070 INFO L226 Difference]: Without dead ends: 293 [2024-11-20 00:20:07,071 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-20 00:20:07,072 INFO L432 NwaCegarLoop]: 247 mSDtfsCounter, 365 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 357 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 365 SdHoareTripleChecker+Valid, 493 SdHoareTripleChecker+Invalid, 357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-20 00:20:07,076 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [365 Valid, 493 Invalid, 357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 357 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-20 00:20:07,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2024-11-20 00:20:07,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 293. [2024-11-20 00:20:07,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 292 states have (on average 1.4794520547945205) internal successors, (432), 292 states have internal predecessors, (432), 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) [2024-11-20 00:20:07,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 432 transitions. [2024-11-20 00:20:07,098 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 432 transitions. Word has length 74 [2024-11-20 00:20:07,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:20:07,098 INFO L471 AbstractCegarLoop]: Abstraction has 293 states and 432 transitions. [2024-11-20 00:20:07,098 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 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) [2024-11-20 00:20:07,099 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 432 transitions. [2024-11-20 00:20:07,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-20 00:20:07,100 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:20:07,100 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:20:07,100 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-20 00:20:07,100 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:20:07,102 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:20:07,103 INFO L85 PathProgramCache]: Analyzing trace with hash -725914505, now seen corresponding path program 1 times [2024-11-20 00:20:07,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:20:07,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843710972] [2024-11-20 00:20:07,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:20:07,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:20:08,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:20:33,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:20:33,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:20:33,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843710972] [2024-11-20 00:20:33,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [843710972] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:20:33,087 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:20:33,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [57] imperfect sequences [] total 57 [2024-11-20 00:20:33,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445405371] [2024-11-20 00:20:33,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:20:33,088 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 57 states [2024-11-20 00:20:33,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:20:33,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2024-11-20 00:20:33,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=138, Invalid=3054, Unknown=0, NotChecked=0, Total=3192 [2024-11-20 00:20:33,091 INFO L87 Difference]: Start difference. First operand 293 states and 432 transitions. Second operand has 57 states, 57 states have (on average 1.3157894736842106) internal successors, (75), 57 states have internal predecessors, (75), 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) [2024-11-20 00:20:45,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:20:45,369 INFO L93 Difference]: Finished difference Result 2008 states and 2985 transitions. [2024-11-20 00:20:45,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2024-11-20 00:20:45,369 INFO L78 Accepts]: Start accepts. Automaton has has 57 states, 57 states have (on average 1.3157894736842106) internal successors, (75), 57 states have internal predecessors, (75), 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 75 [2024-11-20 00:20:45,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:20:45,376 INFO L225 Difference]: With dead ends: 2008 [2024-11-20 00:20:45,377 INFO L226 Difference]: Without dead ends: 1725 [2024-11-20 00:20:45,382 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2107 ImplicationChecksByTransitivity, 16.5s TimeCoverageRelationStatistics Valid=1702, Invalid=10288, Unknown=0, NotChecked=0, Total=11990 [2024-11-20 00:20:45,384 INFO L432 NwaCegarLoop]: 390 mSDtfsCounter, 10608 mSDsluCounter, 18313 mSDsCounter, 0 mSdLazyCounter, 2140 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10608 SdHoareTripleChecker+Valid, 18703 SdHoareTripleChecker+Invalid, 2140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-20 00:20:45,385 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10608 Valid, 18703 Invalid, 2140 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 2140 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-20 00:20:45,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1725 states. [2024-11-20 00:20:45,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1725 to 347. [2024-11-20 00:20:45,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 347 states, 346 states have (on average 1.4797687861271676) internal successors, (512), 346 states have internal predecessors, (512), 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) [2024-11-20 00:20:45,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 512 transitions. [2024-11-20 00:20:45,402 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 512 transitions. Word has length 75 [2024-11-20 00:20:45,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:20:45,402 INFO L471 AbstractCegarLoop]: Abstraction has 347 states and 512 transitions. [2024-11-20 00:20:45,403 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 57 states, 57 states have (on average 1.3157894736842106) internal successors, (75), 57 states have internal predecessors, (75), 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) [2024-11-20 00:20:45,403 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 512 transitions. [2024-11-20 00:20:45,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-20 00:20:45,408 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:20:45,408 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:20:45,408 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-20 00:20:45,409 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:20:45,410 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:20:45,410 INFO L85 PathProgramCache]: Analyzing trace with hash 1865222228, now seen corresponding path program 1 times [2024-11-20 00:20:45,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:20:45,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336417051] [2024-11-20 00:20:45,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:20:45,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:20:45,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:20:45,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:20:45,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:20:45,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336417051] [2024-11-20 00:20:45,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336417051] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:20:45,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:20:45,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 00:20:45,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071816222] [2024-11-20 00:20:45,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:20:45,697 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 00:20:45,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:20:45,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 00:20:45,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 00:20:45,698 INFO L87 Difference]: Start difference. First operand 347 states and 512 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 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) [2024-11-20 00:20:45,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:20:45,839 INFO L93 Difference]: Finished difference Result 875 states and 1289 transitions. [2024-11-20 00:20:45,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 00:20:45,840 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 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 76 [2024-11-20 00:20:45,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:20:45,842 INFO L225 Difference]: With dead ends: 875 [2024-11-20 00:20:45,842 INFO L226 Difference]: Without dead ends: 538 [2024-11-20 00:20:45,843 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-20 00:20:45,846 INFO L432 NwaCegarLoop]: 395 mSDtfsCounter, 790 mSDsluCounter, 784 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 790 SdHoareTripleChecker+Valid, 1179 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 00:20:45,846 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [790 Valid, 1179 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 00:20:45,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2024-11-20 00:20:45,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 389. [2024-11-20 00:20:45,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 389 states, 388 states have (on average 1.4768041237113403) internal successors, (573), 388 states have internal predecessors, (573), 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) [2024-11-20 00:20:45,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 573 transitions. [2024-11-20 00:20:45,859 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 573 transitions. Word has length 76 [2024-11-20 00:20:45,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:20:45,859 INFO L471 AbstractCegarLoop]: Abstraction has 389 states and 573 transitions. [2024-11-20 00:20:45,862 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 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) [2024-11-20 00:20:45,862 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 573 transitions. [2024-11-20 00:20:45,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-20 00:20:45,864 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:20:45,864 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:20:45,864 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-20 00:20:45,865 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:20:45,865 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:20:45,865 INFO L85 PathProgramCache]: Analyzing trace with hash -2572111, now seen corresponding path program 1 times [2024-11-20 00:20:45,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:20:45,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131698357] [2024-11-20 00:20:45,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:20:45,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:20:45,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:20:46,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:20:46,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:20:46,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131698357] [2024-11-20 00:20:46,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [131698357] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:20:46,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:20:46,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 00:20:46,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995800504] [2024-11-20 00:20:46,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:20:46,148 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 00:20:46,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:20:46,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 00:20:46,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 00:20:46,149 INFO L87 Difference]: Start difference. First operand 389 states and 573 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 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) [2024-11-20 00:20:46,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:20:46,280 INFO L93 Difference]: Finished difference Result 873 states and 1284 transitions. [2024-11-20 00:20:46,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 00:20:46,281 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 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 76 [2024-11-20 00:20:46,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:20:46,283 INFO L225 Difference]: With dead ends: 873 [2024-11-20 00:20:46,283 INFO L226 Difference]: Without dead ends: 536 [2024-11-20 00:20:46,283 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-20 00:20:46,284 INFO L432 NwaCegarLoop]: 395 mSDtfsCounter, 772 mSDsluCounter, 784 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 772 SdHoareTripleChecker+Valid, 1179 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 00:20:46,289 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [772 Valid, 1179 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 00:20:46,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2024-11-20 00:20:46,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 417. [2024-11-20 00:20:46,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 417 states, 416 states have (on average 1.4735576923076923) internal successors, (613), 416 states have internal predecessors, (613), 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) [2024-11-20 00:20:46,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 613 transitions. [2024-11-20 00:20:46,302 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 613 transitions. Word has length 76 [2024-11-20 00:20:46,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:20:46,302 INFO L471 AbstractCegarLoop]: Abstraction has 417 states and 613 transitions. [2024-11-20 00:20:46,303 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 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) [2024-11-20 00:20:46,303 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 613 transitions. [2024-11-20 00:20:46,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-20 00:20:46,304 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:20:46,304 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:20:46,304 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-20 00:20:46,304 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:20:46,305 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:20:46,305 INFO L85 PathProgramCache]: Analyzing trace with hash 1360033252, now seen corresponding path program 1 times [2024-11-20 00:20:46,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:20:46,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203893125] [2024-11-20 00:20:46,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:20:46,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:20:46,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:20:46,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:20:46,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:20:46,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203893125] [2024-11-20 00:20:46,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1203893125] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:20:46,594 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:20:46,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 00:20:46,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638054618] [2024-11-20 00:20:46,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:20:46,597 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 00:20:46,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:20:46,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 00:20:46,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 00:20:46,598 INFO L87 Difference]: Start difference. First operand 417 states and 613 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 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) [2024-11-20 00:20:46,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:20:46,731 INFO L93 Difference]: Finished difference Result 871 states and 1279 transitions. [2024-11-20 00:20:46,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 00:20:46,732 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 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 76 [2024-11-20 00:20:46,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:20:46,734 INFO L225 Difference]: With dead ends: 871 [2024-11-20 00:20:46,735 INFO L226 Difference]: Without dead ends: 534 [2024-11-20 00:20:46,735 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-20 00:20:46,737 INFO L432 NwaCegarLoop]: 395 mSDtfsCounter, 742 mSDsluCounter, 784 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 742 SdHoareTripleChecker+Valid, 1179 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 00:20:46,737 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [742 Valid, 1179 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 00:20:46,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534 states. [2024-11-20 00:20:46,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534 to 481. [2024-11-20 00:20:46,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 481 states, 480 states have (on average 1.4729166666666667) internal successors, (707), 480 states have internal predecessors, (707), 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) [2024-11-20 00:20:46,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 707 transitions. [2024-11-20 00:20:46,749 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 707 transitions. Word has length 76 [2024-11-20 00:20:46,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:20:46,750 INFO L471 AbstractCegarLoop]: Abstraction has 481 states and 707 transitions. [2024-11-20 00:20:46,750 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 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) [2024-11-20 00:20:46,750 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 707 transitions. [2024-11-20 00:20:46,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-20 00:20:46,751 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:20:46,751 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:20:46,751 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-20 00:20:46,752 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:20:46,752 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:20:46,752 INFO L85 PathProgramCache]: Analyzing trace with hash -1838716088, now seen corresponding path program 1 times [2024-11-20 00:20:46,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:20:46,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911805498] [2024-11-20 00:20:46,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:20:46,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:20:46,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:20:47,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:20:47,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:20:47,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911805498] [2024-11-20 00:20:47,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [911805498] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:20:47,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:20:47,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 00:20:47,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233191796] [2024-11-20 00:20:47,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:20:47,042 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 00:20:47,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:20:47,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 00:20:47,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 00:20:47,043 INFO L87 Difference]: Start difference. First operand 481 states and 707 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 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) [2024-11-20 00:20:47,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:20:47,179 INFO L93 Difference]: Finished difference Result 869 states and 1274 transitions. [2024-11-20 00:20:47,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 00:20:47,180 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 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 76 [2024-11-20 00:20:47,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:20:47,182 INFO L225 Difference]: With dead ends: 869 [2024-11-20 00:20:47,182 INFO L226 Difference]: Without dead ends: 532 [2024-11-20 00:20:47,183 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-20 00:20:47,184 INFO L432 NwaCegarLoop]: 395 mSDtfsCounter, 726 mSDsluCounter, 784 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 726 SdHoareTripleChecker+Valid, 1179 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 00:20:47,184 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [726 Valid, 1179 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 00:20:47,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 532 states. [2024-11-20 00:20:47,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 532 to 503. [2024-11-20 00:20:47,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 503 states, 502 states have (on average 1.4701195219123506) internal successors, (738), 502 states have internal predecessors, (738), 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) [2024-11-20 00:20:47,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 503 states to 503 states and 738 transitions. [2024-11-20 00:20:47,194 INFO L78 Accepts]: Start accepts. Automaton has 503 states and 738 transitions. Word has length 76 [2024-11-20 00:20:47,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:20:47,194 INFO L471 AbstractCegarLoop]: Abstraction has 503 states and 738 transitions. [2024-11-20 00:20:47,195 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 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) [2024-11-20 00:20:47,195 INFO L276 IsEmpty]: Start isEmpty. Operand 503 states and 738 transitions. [2024-11-20 00:20:47,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-20 00:20:47,195 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:20:47,196 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:20:47,196 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-20 00:20:47,196 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:20:47,196 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:20:47,197 INFO L85 PathProgramCache]: Analyzing trace with hash -1589391729, now seen corresponding path program 1 times [2024-11-20 00:20:47,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:20:47,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603730315] [2024-11-20 00:20:47,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:20:47,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:20:47,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:20:47,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:20:47,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:20:47,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603730315] [2024-11-20 00:20:47,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1603730315] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:20:47,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:20:47,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 00:20:47,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928817179] [2024-11-20 00:20:47,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:20:47,467 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 00:20:47,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:20:47,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 00:20:47,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 00:20:47,468 INFO L87 Difference]: Start difference. First operand 503 states and 738 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 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) [2024-11-20 00:20:47,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:20:47,598 INFO L93 Difference]: Finished difference Result 871 states and 1274 transitions. [2024-11-20 00:20:47,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 00:20:47,598 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 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 76 [2024-11-20 00:20:47,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:20:47,600 INFO L225 Difference]: With dead ends: 871 [2024-11-20 00:20:47,601 INFO L226 Difference]: Without dead ends: 530 [2024-11-20 00:20:47,601 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-20 00:20:47,602 INFO L432 NwaCegarLoop]: 395 mSDtfsCounter, 720 mSDsluCounter, 784 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 720 SdHoareTripleChecker+Valid, 1179 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 00:20:47,602 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [720 Valid, 1179 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 00:20:47,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 530 states. [2024-11-20 00:20:47,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 530 to 501. [2024-11-20 00:20:47,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 501 states, 500 states have (on average 1.466) internal successors, (733), 500 states have internal predecessors, (733), 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) [2024-11-20 00:20:47,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 501 states and 733 transitions. [2024-11-20 00:20:47,613 INFO L78 Accepts]: Start accepts. Automaton has 501 states and 733 transitions. Word has length 76 [2024-11-20 00:20:47,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:20:47,613 INFO L471 AbstractCegarLoop]: Abstraction has 501 states and 733 transitions. [2024-11-20 00:20:47,613 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 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) [2024-11-20 00:20:47,614 INFO L276 IsEmpty]: Start isEmpty. Operand 501 states and 733 transitions. [2024-11-20 00:20:47,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-20 00:20:47,614 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:20:47,614 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:20:47,615 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-20 00:20:47,615 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:20:47,615 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:20:47,615 INFO L85 PathProgramCache]: Analyzing trace with hash 1788115990, now seen corresponding path program 1 times [2024-11-20 00:20:47,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:20:47,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496867199] [2024-11-20 00:20:47,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:20:47,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:20:47,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:20:47,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:20:47,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:20:47,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496867199] [2024-11-20 00:20:47,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1496867199] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:20:47,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:20:47,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 00:20:47,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135708408] [2024-11-20 00:20:47,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:20:47,889 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 00:20:47,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:20:47,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 00:20:47,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 00:20:47,891 INFO L87 Difference]: Start difference. First operand 501 states and 733 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 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) [2024-11-20 00:20:48,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:20:48,023 INFO L93 Difference]: Finished difference Result 871 states and 1271 transitions. [2024-11-20 00:20:48,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 00:20:48,024 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 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 76 [2024-11-20 00:20:48,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:20:48,026 INFO L225 Difference]: With dead ends: 871 [2024-11-20 00:20:48,026 INFO L226 Difference]: Without dead ends: 528 [2024-11-20 00:20:48,027 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-20 00:20:48,028 INFO L432 NwaCegarLoop]: 395 mSDtfsCounter, 714 mSDsluCounter, 784 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 714 SdHoareTripleChecker+Valid, 1179 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 00:20:48,028 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [714 Valid, 1179 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 00:20:48,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2024-11-20 00:20:48,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 499. [2024-11-20 00:20:48,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 499 states, 498 states have (on average 1.461847389558233) internal successors, (728), 498 states have internal predecessors, (728), 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) [2024-11-20 00:20:48,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 499 states to 499 states and 728 transitions. [2024-11-20 00:20:48,038 INFO L78 Accepts]: Start accepts. Automaton has 499 states and 728 transitions. Word has length 76 [2024-11-20 00:20:48,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:20:48,038 INFO L471 AbstractCegarLoop]: Abstraction has 499 states and 728 transitions. [2024-11-20 00:20:48,039 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 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) [2024-11-20 00:20:48,039 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states and 728 transitions. [2024-11-20 00:20:48,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-20 00:20:48,041 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:20:48,041 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:20:48,041 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-20 00:20:48,041 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:20:48,042 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:20:48,042 INFO L85 PathProgramCache]: Analyzing trace with hash 577758173, now seen corresponding path program 1 times [2024-11-20 00:20:48,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:20:48,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791404945] [2024-11-20 00:20:48,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:20:48,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:20:48,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:20:48,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:20:48,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:20:48,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791404945] [2024-11-20 00:20:48,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791404945] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:20:48,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:20:48,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 00:20:48,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860014733] [2024-11-20 00:20:48,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:20:48,329 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 00:20:48,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:20:48,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 00:20:48,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 00:20:48,330 INFO L87 Difference]: Start difference. First operand 499 states and 728 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 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) [2024-11-20 00:20:48,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:20:48,462 INFO L93 Difference]: Finished difference Result 871 states and 1268 transitions. [2024-11-20 00:20:48,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 00:20:48,463 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 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 76 [2024-11-20 00:20:48,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:20:48,465 INFO L225 Difference]: With dead ends: 871 [2024-11-20 00:20:48,465 INFO L226 Difference]: Without dead ends: 526 [2024-11-20 00:20:48,465 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-20 00:20:48,466 INFO L432 NwaCegarLoop]: 395 mSDtfsCounter, 708 mSDsluCounter, 784 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 708 SdHoareTripleChecker+Valid, 1179 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 00:20:48,466 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [708 Valid, 1179 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 00:20:48,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2024-11-20 00:20:48,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 497. [2024-11-20 00:20:48,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 497 states, 496 states have (on average 1.4576612903225807) internal successors, (723), 496 states have internal predecessors, (723), 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) [2024-11-20 00:20:48,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 497 states to 497 states and 723 transitions. [2024-11-20 00:20:48,477 INFO L78 Accepts]: Start accepts. Automaton has 497 states and 723 transitions. Word has length 76 [2024-11-20 00:20:48,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:20:48,477 INFO L471 AbstractCegarLoop]: Abstraction has 497 states and 723 transitions. [2024-11-20 00:20:48,477 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 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) [2024-11-20 00:20:48,478 INFO L276 IsEmpty]: Start isEmpty. Operand 497 states and 723 transitions. [2024-11-20 00:20:48,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-20 00:20:48,478 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:20:48,478 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:20:48,479 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-20 00:20:48,479 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:20:48,479 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:20:48,479 INFO L85 PathProgramCache]: Analyzing trace with hash 1507107371, now seen corresponding path program 1 times [2024-11-20 00:20:48,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:20:48,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620085848] [2024-11-20 00:20:48,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:20:48,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:20:48,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:20:48,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:20:48,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:20:48,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620085848] [2024-11-20 00:20:48,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1620085848] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:20:48,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:20:48,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 00:20:48,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580840113] [2024-11-20 00:20:48,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:20:48,724 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 00:20:48,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:20:48,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 00:20:48,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 00:20:48,724 INFO L87 Difference]: Start difference. First operand 497 states and 723 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 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) [2024-11-20 00:20:48,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:20:48,836 INFO L93 Difference]: Finished difference Result 873 states and 1267 transitions. [2024-11-20 00:20:48,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 00:20:48,837 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 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 76 [2024-11-20 00:20:48,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:20:48,839 INFO L225 Difference]: With dead ends: 873 [2024-11-20 00:20:48,839 INFO L226 Difference]: Without dead ends: 524 [2024-11-20 00:20:48,839 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-20 00:20:48,840 INFO L432 NwaCegarLoop]: 395 mSDtfsCounter, 704 mSDsluCounter, 784 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 704 SdHoareTripleChecker+Valid, 1179 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 00:20:48,840 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [704 Valid, 1179 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 00:20:48,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 524 states. [2024-11-20 00:20:48,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 524 to 495. [2024-11-20 00:20:48,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 495 states, 494 states have (on average 1.4534412955465588) internal successors, (718), 494 states have internal predecessors, (718), 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) [2024-11-20 00:20:48,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 718 transitions. [2024-11-20 00:20:48,850 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 718 transitions. Word has length 76 [2024-11-20 00:20:48,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:20:48,851 INFO L471 AbstractCegarLoop]: Abstraction has 495 states and 718 transitions. [2024-11-20 00:20:48,851 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 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) [2024-11-20 00:20:48,851 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 718 transitions. [2024-11-20 00:20:48,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-20 00:20:48,852 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:20:48,852 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:20:48,852 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-20 00:20:48,852 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:20:48,853 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:20:48,853 INFO L85 PathProgramCache]: Analyzing trace with hash 1111414962, now seen corresponding path program 1 times [2024-11-20 00:20:48,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:20:48,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024339024] [2024-11-20 00:20:48,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:20:48,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:20:48,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:20:49,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:20:49,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:20:49,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024339024] [2024-11-20 00:20:49,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2024339024] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:20:49,100 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:20:49,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 00:20:49,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203342675] [2024-11-20 00:20:49,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:20:49,101 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 00:20:49,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:20:49,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 00:20:49,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 00:20:49,102 INFO L87 Difference]: Start difference. First operand 495 states and 718 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 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) [2024-11-20 00:20:49,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:20:49,236 INFO L93 Difference]: Finished difference Result 873 states and 1264 transitions. [2024-11-20 00:20:49,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 00:20:49,237 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 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 76 [2024-11-20 00:20:49,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:20:49,239 INFO L225 Difference]: With dead ends: 873 [2024-11-20 00:20:49,239 INFO L226 Difference]: Without dead ends: 522 [2024-11-20 00:20:49,239 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-20 00:20:49,240 INFO L432 NwaCegarLoop]: 395 mSDtfsCounter, 698 mSDsluCounter, 784 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 698 SdHoareTripleChecker+Valid, 1179 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 00:20:49,240 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [698 Valid, 1179 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 00:20:49,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 522 states. [2024-11-20 00:20:49,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 522 to 493. [2024-11-20 00:20:49,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 493 states, 492 states have (on average 1.4491869918699187) internal successors, (713), 492 states have internal predecessors, (713), 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) [2024-11-20 00:20:49,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 493 states to 493 states and 713 transitions. [2024-11-20 00:20:49,249 INFO L78 Accepts]: Start accepts. Automaton has 493 states and 713 transitions. Word has length 76 [2024-11-20 00:20:49,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:20:49,250 INFO L471 AbstractCegarLoop]: Abstraction has 493 states and 713 transitions. [2024-11-20 00:20:49,250 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 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) [2024-11-20 00:20:49,250 INFO L276 IsEmpty]: Start isEmpty. Operand 493 states and 713 transitions. [2024-11-20 00:20:49,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-20 00:20:49,251 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:20:49,251 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:20:49,251 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-20 00:20:49,251 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:20:49,252 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:20:49,252 INFO L85 PathProgramCache]: Analyzing trace with hash -1191868039, now seen corresponding path program 1 times [2024-11-20 00:20:49,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:20:49,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659164110] [2024-11-20 00:20:49,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:20:49,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:20:49,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:20:49,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:20:49,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:20:49,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659164110] [2024-11-20 00:20:49,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [659164110] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:20:49,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:20:49,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 00:20:49,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83297332] [2024-11-20 00:20:49,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:20:49,506 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 00:20:49,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:20:49,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 00:20:49,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 00:20:49,507 INFO L87 Difference]: Start difference. First operand 493 states and 713 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 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) [2024-11-20 00:20:49,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:20:49,613 INFO L93 Difference]: Finished difference Result 873 states and 1261 transitions. [2024-11-20 00:20:49,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 00:20:49,614 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 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 76 [2024-11-20 00:20:49,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:20:49,616 INFO L225 Difference]: With dead ends: 873 [2024-11-20 00:20:49,616 INFO L226 Difference]: Without dead ends: 520 [2024-11-20 00:20:49,616 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-20 00:20:49,617 INFO L432 NwaCegarLoop]: 395 mSDtfsCounter, 692 mSDsluCounter, 784 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 692 SdHoareTripleChecker+Valid, 1179 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 00:20:49,617 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [692 Valid, 1179 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 00:20:49,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 520 states. [2024-11-20 00:20:49,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 520 to 491. [2024-11-20 00:20:49,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 491 states, 490 states have (on average 1.4448979591836735) internal successors, (708), 490 states have internal predecessors, (708), 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) [2024-11-20 00:20:49,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 491 states and 708 transitions. [2024-11-20 00:20:49,626 INFO L78 Accepts]: Start accepts. Automaton has 491 states and 708 transitions. Word has length 76 [2024-11-20 00:20:49,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:20:49,627 INFO L471 AbstractCegarLoop]: Abstraction has 491 states and 708 transitions. [2024-11-20 00:20:49,627 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 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) [2024-11-20 00:20:49,627 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 708 transitions. [2024-11-20 00:20:49,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-20 00:20:49,628 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:20:49,628 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:20:49,628 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-20 00:20:49,628 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:20:49,629 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:20:49,629 INFO L85 PathProgramCache]: Analyzing trace with hash 1556292736, now seen corresponding path program 1 times [2024-11-20 00:20:49,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:20:49,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993404167] [2024-11-20 00:20:49,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:20:49,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:20:49,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:20:49,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:20:49,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:20:49,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993404167] [2024-11-20 00:20:49,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993404167] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:20:49,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:20:49,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 00:20:49,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367392061] [2024-11-20 00:20:49,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:20:49,842 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 00:20:49,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:20:49,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 00:20:49,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 00:20:49,843 INFO L87 Difference]: Start difference. First operand 491 states and 708 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 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) [2024-11-20 00:20:49,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:20:49,983 INFO L93 Difference]: Finished difference Result 873 states and 1258 transitions. [2024-11-20 00:20:49,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 00:20:49,984 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 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 76 [2024-11-20 00:20:49,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:20:49,985 INFO L225 Difference]: With dead ends: 873 [2024-11-20 00:20:49,986 INFO L226 Difference]: Without dead ends: 518 [2024-11-20 00:20:49,986 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-20 00:20:49,987 INFO L432 NwaCegarLoop]: 395 mSDtfsCounter, 686 mSDsluCounter, 784 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 686 SdHoareTripleChecker+Valid, 1179 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 00:20:49,987 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [686 Valid, 1179 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 00:20:49,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 518 states. [2024-11-20 00:20:49,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 518 to 489. [2024-11-20 00:20:49,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 489 states, 488 states have (on average 1.4405737704918034) internal successors, (703), 488 states have internal predecessors, (703), 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) [2024-11-20 00:20:49,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 703 transitions. [2024-11-20 00:20:49,996 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 703 transitions. Word has length 76 [2024-11-20 00:20:49,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:20:49,997 INFO L471 AbstractCegarLoop]: Abstraction has 489 states and 703 transitions. [2024-11-20 00:20:49,997 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 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) [2024-11-20 00:20:49,997 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 703 transitions. [2024-11-20 00:20:49,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-20 00:20:49,998 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:20:49,998 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:20:49,998 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-20 00:20:49,998 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:20:49,999 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:20:49,999 INFO L85 PathProgramCache]: Analyzing trace with hash 1133910471, now seen corresponding path program 1 times [2024-11-20 00:20:49,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:20:49,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820015869] [2024-11-20 00:20:49,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:20:49,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:20:50,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:20:50,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:20:50,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:20:50,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820015869] [2024-11-20 00:20:50,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1820015869] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:20:50,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:20:50,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 00:20:50,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411987932] [2024-11-20 00:20:50,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:20:50,222 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 00:20:50,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:20:50,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 00:20:50,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 00:20:50,223 INFO L87 Difference]: Start difference. First operand 489 states and 703 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 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) [2024-11-20 00:20:50,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:20:50,342 INFO L93 Difference]: Finished difference Result 873 states and 1255 transitions. [2024-11-20 00:20:50,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 00:20:50,343 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 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 76 [2024-11-20 00:20:50,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:20:50,344 INFO L225 Difference]: With dead ends: 873 [2024-11-20 00:20:50,344 INFO L226 Difference]: Without dead ends: 516 [2024-11-20 00:20:50,345 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-20 00:20:50,346 INFO L432 NwaCegarLoop]: 395 mSDtfsCounter, 680 mSDsluCounter, 784 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 680 SdHoareTripleChecker+Valid, 1179 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 00:20:50,346 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [680 Valid, 1179 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 00:20:50,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 516 states. [2024-11-20 00:20:50,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 516 to 487. [2024-11-20 00:20:50,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 487 states, 486 states have (on average 1.4362139917695473) internal successors, (698), 486 states have internal predecessors, (698), 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) [2024-11-20 00:20:50,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 487 states to 487 states and 698 transitions. [2024-11-20 00:20:50,355 INFO L78 Accepts]: Start accepts. Automaton has 487 states and 698 transitions. Word has length 76 [2024-11-20 00:20:50,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:20:50,355 INFO L471 AbstractCegarLoop]: Abstraction has 487 states and 698 transitions. [2024-11-20 00:20:50,355 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 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) [2024-11-20 00:20:50,356 INFO L276 IsEmpty]: Start isEmpty. Operand 487 states and 698 transitions. [2024-11-20 00:20:50,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-20 00:20:50,356 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:20:50,356 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:20:50,357 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-20 00:20:50,357 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:20:50,357 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:20:50,357 INFO L85 PathProgramCache]: Analyzing trace with hash -1048520370, now seen corresponding path program 1 times [2024-11-20 00:20:50,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:20:50,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366413206] [2024-11-20 00:20:50,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:20:50,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:20:50,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:20:50,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:20:50,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:20:50,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366413206] [2024-11-20 00:20:50,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366413206] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:20:50,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:20:50,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 00:20:50,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960743921] [2024-11-20 00:20:50,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:20:50,579 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 00:20:50,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:20:50,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 00:20:50,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 00:20:50,580 INFO L87 Difference]: Start difference. First operand 487 states and 698 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 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) [2024-11-20 00:20:50,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:20:50,691 INFO L93 Difference]: Finished difference Result 873 states and 1252 transitions. [2024-11-20 00:20:50,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 00:20:50,692 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 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 76 [2024-11-20 00:20:50,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:20:50,693 INFO L225 Difference]: With dead ends: 873 [2024-11-20 00:20:50,693 INFO L226 Difference]: Without dead ends: 514 [2024-11-20 00:20:50,693 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-20 00:20:50,694 INFO L432 NwaCegarLoop]: 395 mSDtfsCounter, 674 mSDsluCounter, 784 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 674 SdHoareTripleChecker+Valid, 1179 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 00:20:50,694 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [674 Valid, 1179 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 00:20:50,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514 states. [2024-11-20 00:20:50,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 485. [2024-11-20 00:20:50,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 485 states, 484 states have (on average 1.4318181818181819) internal successors, (693), 484 states have internal predecessors, (693), 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) [2024-11-20 00:20:50,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 485 states to 485 states and 693 transitions. [2024-11-20 00:20:50,703 INFO L78 Accepts]: Start accepts. Automaton has 485 states and 693 transitions. Word has length 76 [2024-11-20 00:20:50,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:20:50,703 INFO L471 AbstractCegarLoop]: Abstraction has 485 states and 693 transitions. [2024-11-20 00:20:50,703 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 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) [2024-11-20 00:20:50,703 INFO L276 IsEmpty]: Start isEmpty. Operand 485 states and 693 transitions. [2024-11-20 00:20:50,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-20 00:20:50,704 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:20:50,704 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:20:50,704 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-20 00:20:50,705 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:20:50,705 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:20:50,705 INFO L85 PathProgramCache]: Analyzing trace with hash 1874449173, now seen corresponding path program 1 times [2024-11-20 00:20:50,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:20:50,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567255148] [2024-11-20 00:20:50,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:20:50,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:20:50,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:20:50,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:20:50,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:20:50,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567255148] [2024-11-20 00:20:50,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [567255148] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:20:50,981 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:20:50,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 00:20:50,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374514511] [2024-11-20 00:20:50,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:20:50,983 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 00:20:50,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:20:50,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 00:20:50,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 00:20:50,983 INFO L87 Difference]: Start difference. First operand 485 states and 693 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 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) [2024-11-20 00:20:51,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:20:51,105 INFO L93 Difference]: Finished difference Result 873 states and 1249 transitions. [2024-11-20 00:20:51,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 00:20:51,106 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 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 76 [2024-11-20 00:20:51,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:20:51,107 INFO L225 Difference]: With dead ends: 873 [2024-11-20 00:20:51,107 INFO L226 Difference]: Without dead ends: 512 [2024-11-20 00:20:51,108 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-20 00:20:51,108 INFO L432 NwaCegarLoop]: 395 mSDtfsCounter, 668 mSDsluCounter, 784 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 668 SdHoareTripleChecker+Valid, 1179 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 00:20:51,109 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [668 Valid, 1179 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 00:20:51,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 512 states. [2024-11-20 00:20:51,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 512 to 483. [2024-11-20 00:20:51,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483 states, 482 states have (on average 1.4273858921161826) internal successors, (688), 482 states have internal predecessors, (688), 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) [2024-11-20 00:20:51,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 688 transitions. [2024-11-20 00:20:51,119 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 688 transitions. Word has length 76 [2024-11-20 00:20:51,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:20:51,119 INFO L471 AbstractCegarLoop]: Abstraction has 483 states and 688 transitions. [2024-11-20 00:20:51,119 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 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) [2024-11-20 00:20:51,119 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 688 transitions. [2024-11-20 00:20:51,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-20 00:20:51,120 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:20:51,120 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:20:51,120 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-20 00:20:51,121 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:20:51,121 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:20:51,121 INFO L85 PathProgramCache]: Analyzing trace with hash 1939568412, now seen corresponding path program 1 times [2024-11-20 00:20:51,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:20:51,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32163117] [2024-11-20 00:20:51,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:20:51,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:20:51,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:20:51,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:20:51,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:20:51,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32163117] [2024-11-20 00:20:51,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32163117] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:20:51,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:20:51,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 00:20:51,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970387062] [2024-11-20 00:20:51,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:20:51,357 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 00:20:51,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:20:51,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 00:20:51,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 00:20:51,358 INFO L87 Difference]: Start difference. First operand 483 states and 688 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 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) [2024-11-20 00:20:51,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:20:51,450 INFO L93 Difference]: Finished difference Result 873 states and 1246 transitions. [2024-11-20 00:20:51,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 00:20:51,451 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 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 76 [2024-11-20 00:20:51,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:20:51,452 INFO L225 Difference]: With dead ends: 873 [2024-11-20 00:20:51,452 INFO L226 Difference]: Without dead ends: 510 [2024-11-20 00:20:51,453 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-20 00:20:51,453 INFO L432 NwaCegarLoop]: 395 mSDtfsCounter, 662 mSDsluCounter, 784 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 662 SdHoareTripleChecker+Valid, 1179 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 00:20:51,454 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [662 Valid, 1179 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 00:20:51,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 510 states. [2024-11-20 00:20:51,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 510 to 481. [2024-11-20 00:20:51,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 481 states, 480 states have (on average 1.4229166666666666) internal successors, (683), 480 states have internal predecessors, (683), 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) [2024-11-20 00:20:51,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 683 transitions. [2024-11-20 00:20:51,463 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 683 transitions. Word has length 76 [2024-11-20 00:20:51,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:20:51,464 INFO L471 AbstractCegarLoop]: Abstraction has 481 states and 683 transitions. [2024-11-20 00:20:51,464 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 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) [2024-11-20 00:20:51,464 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 683 transitions. [2024-11-20 00:20:51,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-20 00:20:51,465 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:20:51,465 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:20:51,465 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-20 00:20:51,465 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:20:51,465 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:20:51,466 INFO L85 PathProgramCache]: Analyzing trace with hash 94647651, now seen corresponding path program 1 times [2024-11-20 00:20:51,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:20:51,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621630715] [2024-11-20 00:20:51,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:20:51,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:20:51,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:20:51,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:20:51,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:20:51,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621630715] [2024-11-20 00:20:51,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1621630715] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:20:51,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:20:51,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 00:20:51,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147000413] [2024-11-20 00:20:51,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:20:51,674 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 00:20:51,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:20:51,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 00:20:51,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 00:20:51,676 INFO L87 Difference]: Start difference. First operand 481 states and 683 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 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) [2024-11-20 00:20:51,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:20:51,786 INFO L93 Difference]: Finished difference Result 873 states and 1243 transitions. [2024-11-20 00:20:51,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 00:20:51,787 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 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 76 [2024-11-20 00:20:51,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:20:51,789 INFO L225 Difference]: With dead ends: 873 [2024-11-20 00:20:51,789 INFO L226 Difference]: Without dead ends: 508 [2024-11-20 00:20:51,789 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-20 00:20:51,790 INFO L432 NwaCegarLoop]: 395 mSDtfsCounter, 656 mSDsluCounter, 784 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 656 SdHoareTripleChecker+Valid, 1179 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 00:20:51,790 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [656 Valid, 1179 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 00:20:51,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 508 states. [2024-11-20 00:20:51,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 508 to 479. [2024-11-20 00:20:51,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 479 states, 478 states have (on average 1.4184100418410042) internal successors, (678), 478 states have internal predecessors, (678), 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) [2024-11-20 00:20:51,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 479 states to 479 states and 678 transitions. [2024-11-20 00:20:51,799 INFO L78 Accepts]: Start accepts. Automaton has 479 states and 678 transitions. Word has length 76 [2024-11-20 00:20:51,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:20:51,800 INFO L471 AbstractCegarLoop]: Abstraction has 479 states and 678 transitions. [2024-11-20 00:20:51,800 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 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) [2024-11-20 00:20:51,800 INFO L276 IsEmpty]: Start isEmpty. Operand 479 states and 678 transitions. [2024-11-20 00:20:51,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-20 00:20:51,801 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:20:51,801 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:20:51,801 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-20 00:20:51,801 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:20:51,802 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:20:51,802 INFO L85 PathProgramCache]: Analyzing trace with hash 947289578, now seen corresponding path program 1 times [2024-11-20 00:20:51,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:20:51,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611422313] [2024-11-20 00:20:51,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:20:51,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:20:51,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:20:52,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:20:52,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:20:52,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611422313] [2024-11-20 00:20:52,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [611422313] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:20:52,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:20:52,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 00:20:52,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156496520] [2024-11-20 00:20:52,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:20:52,030 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 00:20:52,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:20:52,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 00:20:52,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 00:20:52,031 INFO L87 Difference]: Start difference. First operand 479 states and 678 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 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) [2024-11-20 00:20:52,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:20:52,125 INFO L93 Difference]: Finished difference Result 873 states and 1240 transitions. [2024-11-20 00:20:52,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 00:20:52,125 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 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 76 [2024-11-20 00:20:52,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:20:52,127 INFO L225 Difference]: With dead ends: 873 [2024-11-20 00:20:52,127 INFO L226 Difference]: Without dead ends: 506 [2024-11-20 00:20:52,128 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-20 00:20:52,128 INFO L432 NwaCegarLoop]: 395 mSDtfsCounter, 650 mSDsluCounter, 784 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 650 SdHoareTripleChecker+Valid, 1179 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 00:20:52,128 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [650 Valid, 1179 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 00:20:52,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 506 states. [2024-11-20 00:20:52,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 506 to 477. [2024-11-20 00:20:52,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 477 states, 476 states have (on average 1.4138655462184875) internal successors, (673), 476 states have internal predecessors, (673), 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) [2024-11-20 00:20:52,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 477 states and 673 transitions. [2024-11-20 00:20:52,137 INFO L78 Accepts]: Start accepts. Automaton has 477 states and 673 transitions. Word has length 76 [2024-11-20 00:20:52,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:20:52,138 INFO L471 AbstractCegarLoop]: Abstraction has 477 states and 673 transitions. [2024-11-20 00:20:52,138 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 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) [2024-11-20 00:20:52,138 INFO L276 IsEmpty]: Start isEmpty. Operand 477 states and 673 transitions. [2024-11-20 00:20:52,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-20 00:20:52,139 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:20:52,139 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:20:52,139 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-20 00:20:52,139 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:20:52,140 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:20:52,140 INFO L85 PathProgramCache]: Analyzing trace with hash 2008378808, now seen corresponding path program 1 times [2024-11-20 00:20:52,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:20:52,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460200243] [2024-11-20 00:20:52,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:20:52,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:20:52,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:20:52,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:20:52,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:20:52,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460200243] [2024-11-20 00:20:52,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1460200243] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:20:52,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:20:52,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 00:20:52,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371278291] [2024-11-20 00:20:52,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:20:52,351 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 00:20:52,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:20:52,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 00:20:52,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 00:20:52,352 INFO L87 Difference]: Start difference. First operand 477 states and 673 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 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) [2024-11-20 00:20:52,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:20:52,451 INFO L93 Difference]: Finished difference Result 875 states and 1239 transitions. [2024-11-20 00:20:52,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 00:20:52,452 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 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 76 [2024-11-20 00:20:52,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:20:52,453 INFO L225 Difference]: With dead ends: 875 [2024-11-20 00:20:52,453 INFO L226 Difference]: Without dead ends: 504 [2024-11-20 00:20:52,453 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-20 00:20:52,454 INFO L432 NwaCegarLoop]: 395 mSDtfsCounter, 646 mSDsluCounter, 784 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 646 SdHoareTripleChecker+Valid, 1179 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 00:20:52,454 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [646 Valid, 1179 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 00:20:52,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 504 states. [2024-11-20 00:20:52,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 504 to 475. [2024-11-20 00:20:52,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 475 states, 474 states have (on average 1.409282700421941) internal successors, (668), 474 states have internal predecessors, (668), 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) [2024-11-20 00:20:52,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 475 states to 475 states and 668 transitions. [2024-11-20 00:20:52,462 INFO L78 Accepts]: Start accepts. Automaton has 475 states and 668 transitions. Word has length 76 [2024-11-20 00:20:52,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:20:52,462 INFO L471 AbstractCegarLoop]: Abstraction has 475 states and 668 transitions. [2024-11-20 00:20:52,462 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 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) [2024-11-20 00:20:52,462 INFO L276 IsEmpty]: Start isEmpty. Operand 475 states and 668 transitions. [2024-11-20 00:20:52,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-20 00:20:52,463 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:20:52,463 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:20:52,463 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-20 00:20:52,463 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:20:52,464 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:20:52,464 INFO L85 PathProgramCache]: Analyzing trace with hash 1796928767, now seen corresponding path program 1 times [2024-11-20 00:20:52,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:20:52,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140752186] [2024-11-20 00:20:52,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:20:52,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:20:52,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:20:52,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:20:52,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:20:52,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140752186] [2024-11-20 00:20:52,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140752186] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:20:52,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:20:52,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 00:20:52,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405282313] [2024-11-20 00:20:52,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:20:52,713 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 00:20:52,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:20:52,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 00:20:52,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 00:20:52,714 INFO L87 Difference]: Start difference. First operand 475 states and 668 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 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) [2024-11-20 00:20:52,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:20:52,814 INFO L93 Difference]: Finished difference Result 875 states and 1236 transitions. [2024-11-20 00:20:52,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 00:20:52,815 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 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 76 [2024-11-20 00:20:52,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:20:52,816 INFO L225 Difference]: With dead ends: 875 [2024-11-20 00:20:52,816 INFO L226 Difference]: Without dead ends: 502 [2024-11-20 00:20:52,817 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-20 00:20:52,817 INFO L432 NwaCegarLoop]: 395 mSDtfsCounter, 640 mSDsluCounter, 784 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 640 SdHoareTripleChecker+Valid, 1179 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 00:20:52,817 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [640 Valid, 1179 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 00:20:52,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 502 states. [2024-11-20 00:20:52,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 502 to 473. [2024-11-20 00:20:52,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 473 states, 472 states have (on average 1.4046610169491525) internal successors, (663), 472 states have internal predecessors, (663), 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) [2024-11-20 00:20:52,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 663 transitions. [2024-11-20 00:20:52,826 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 663 transitions. Word has length 76 [2024-11-20 00:20:52,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:20:52,827 INFO L471 AbstractCegarLoop]: Abstraction has 473 states and 663 transitions. [2024-11-20 00:20:52,827 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 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) [2024-11-20 00:20:52,827 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 663 transitions. [2024-11-20 00:20:52,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-20 00:20:52,828 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:20:52,828 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:20:52,828 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-20 00:20:52,828 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:20:52,828 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:20:52,829 INFO L85 PathProgramCache]: Analyzing trace with hash 456902278, now seen corresponding path program 1 times [2024-11-20 00:20:52,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:20:52,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422875923] [2024-11-20 00:20:52,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:20:52,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:20:52,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:20:53,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:20:53,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:20:53,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422875923] [2024-11-20 00:20:53,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1422875923] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:20:53,097 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:20:53,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 00:20:53,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329338713] [2024-11-20 00:20:53,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:20:53,098 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 00:20:53,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:20:53,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 00:20:53,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 00:20:53,099 INFO L87 Difference]: Start difference. First operand 473 states and 663 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 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) [2024-11-20 00:20:53,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:20:53,198 INFO L93 Difference]: Finished difference Result 875 states and 1233 transitions. [2024-11-20 00:20:53,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 00:20:53,199 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 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 76 [2024-11-20 00:20:53,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:20:53,200 INFO L225 Difference]: With dead ends: 875 [2024-11-20 00:20:53,201 INFO L226 Difference]: Without dead ends: 500 [2024-11-20 00:20:53,201 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-20 00:20:53,202 INFO L432 NwaCegarLoop]: 395 mSDtfsCounter, 634 mSDsluCounter, 784 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 634 SdHoareTripleChecker+Valid, 1179 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 00:20:53,202 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [634 Valid, 1179 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 00:20:53,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 500 states. [2024-11-20 00:20:53,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 500 to 471. [2024-11-20 00:20:53,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 471 states, 470 states have (on average 1.4) internal successors, (658), 470 states have internal predecessors, (658), 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) [2024-11-20 00:20:53,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 658 transitions. [2024-11-20 00:20:53,212 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 658 transitions. Word has length 76 [2024-11-20 00:20:53,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:20:53,212 INFO L471 AbstractCegarLoop]: Abstraction has 471 states and 658 transitions. [2024-11-20 00:20:53,212 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 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) [2024-11-20 00:20:53,212 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 658 transitions. [2024-11-20 00:20:53,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-20 00:20:53,213 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:20:53,213 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:20:53,213 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-20 00:20:53,213 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:20:53,214 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:20:53,214 INFO L85 PathProgramCache]: Analyzing trace with hash 1181635149, now seen corresponding path program 1 times [2024-11-20 00:20:53,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:20:53,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53866550] [2024-11-20 00:20:53,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:20:53,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:20:53,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:20:53,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:20:53,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:20:53,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53866550] [2024-11-20 00:20:53,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53866550] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:20:53,495 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:20:53,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 00:20:53,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727545824] [2024-11-20 00:20:53,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:20:53,496 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 00:20:53,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:20:53,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 00:20:53,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 00:20:53,498 INFO L87 Difference]: Start difference. First operand 471 states and 658 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 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) [2024-11-20 00:20:53,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:20:53,633 INFO L93 Difference]: Finished difference Result 875 states and 1230 transitions. [2024-11-20 00:20:53,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 00:20:53,634 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 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 76 [2024-11-20 00:20:53,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:20:53,635 INFO L225 Difference]: With dead ends: 875 [2024-11-20 00:20:53,635 INFO L226 Difference]: Without dead ends: 498 [2024-11-20 00:20:53,636 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-20 00:20:53,636 INFO L432 NwaCegarLoop]: 395 mSDtfsCounter, 628 mSDsluCounter, 784 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 628 SdHoareTripleChecker+Valid, 1179 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 00:20:53,637 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [628 Valid, 1179 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 00:20:53,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 498 states. [2024-11-20 00:20:53,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 498 to 469. [2024-11-20 00:20:53,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 469 states, 468 states have (on average 1.3952991452991452) internal successors, (653), 468 states have internal predecessors, (653), 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) [2024-11-20 00:20:53,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 469 states and 653 transitions. [2024-11-20 00:20:53,645 INFO L78 Accepts]: Start accepts. Automaton has 469 states and 653 transitions. Word has length 76 [2024-11-20 00:20:53,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:20:53,646 INFO L471 AbstractCegarLoop]: Abstraction has 469 states and 653 transitions. [2024-11-20 00:20:53,646 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 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) [2024-11-20 00:20:53,646 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 653 transitions. [2024-11-20 00:20:53,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-20 00:20:53,647 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:20:53,647 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:20:53,647 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-20 00:20:53,647 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:20:53,647 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:20:53,648 INFO L85 PathProgramCache]: Analyzing trace with hash 1662408859, now seen corresponding path program 1 times [2024-11-20 00:20:53,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:20:53,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180677370] [2024-11-20 00:20:53,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:20:53,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms