./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.circular_pointer_top_w16_d16_e0.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.circular_pointer_top_w16_d16_e0.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 222be94abfdbb514b1917b4bfb3a2a13389b64e1e049c782003790d790f6753f --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 01:02:14,135 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 01:02:14,203 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-20 01:02:14,208 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 01:02:14,210 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 01:02:14,240 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 01:02:14,243 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 01:02:14,244 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 01:02:14,244 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 01:02:14,246 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 01:02:14,246 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 01:02:14,247 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 01:02:14,247 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 01:02:14,248 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 01:02:14,249 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 01:02:14,250 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 01:02:14,250 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-20 01:02:14,250 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 01:02:14,251 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 01:02:14,251 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-20 01:02:14,251 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 01:02:14,255 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-20 01:02:14,256 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 01:02:14,256 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 01:02:14,257 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 01:02:14,257 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 01:02:14,257 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 01:02:14,258 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 01:02:14,258 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 01:02:14,258 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 01:02:14,258 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 01:02:14,259 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 01:02:14,259 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-20 01:02:14,259 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 01:02:14,260 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 01:02:14,261 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 01:02:14,261 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 01:02:14,261 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 01:02:14,261 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 01:02:14,262 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 222be94abfdbb514b1917b4bfb3a2a13389b64e1e049c782003790d790f6753f [2024-11-20 01:02:14,487 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 01:02:14,516 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 01:02:14,519 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 01:02:14,521 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 01:02:14,521 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 01:02:14,522 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w16_d16_e0.c [2024-11-20 01:02:15,955 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 01:02:16,218 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 01:02:16,219 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w16_d16_e0.c [2024-11-20 01:02:16,230 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aee4e05b2/17a09e4ff3ba4fbe9d709dad49262b82/FLAG7968c4745 [2024-11-20 01:02:16,247 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aee4e05b2/17a09e4ff3ba4fbe9d709dad49262b82 [2024-11-20 01:02:16,250 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 01:02:16,251 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 01:02:16,252 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 01:02:16,252 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 01:02:16,260 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 01:02:16,261 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 01:02:16" (1/1) ... [2024-11-20 01:02:16,262 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22bca5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:02:16, skipping insertion in model container [2024-11-20 01:02:16,262 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 01:02:16" (1/1) ... [2024-11-20 01:02:16,323 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 01:02:16,561 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.circular_pointer_top_w16_d16_e0.c[1280,1293] [2024-11-20 01:02:16,803 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 01:02:16,816 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 01:02:16,826 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.circular_pointer_top_w16_d16_e0.c[1280,1293] [2024-11-20 01:02:16,941 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 01:02:16,958 INFO L204 MainTranslator]: Completed translation [2024-11-20 01:02:16,958 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:02:16 WrapperNode [2024-11-20 01:02:16,959 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 01:02:16,960 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 01:02:16,960 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 01:02:16,960 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 01:02:16,966 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:02:16" (1/1) ... [2024-11-20 01:02:17,013 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:02:16" (1/1) ... [2024-11-20 01:02:17,197 INFO L138 Inliner]: procedures = 17, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1977 [2024-11-20 01:02:17,198 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 01:02:17,199 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 01:02:17,199 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 01:02:17,199 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 01:02:17,209 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:02:16" (1/1) ... [2024-11-20 01:02:17,210 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:02:16" (1/1) ... [2024-11-20 01:02:17,377 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:02:16" (1/1) ... [2024-11-20 01:02:17,528 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 01:02:17,533 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:02:16" (1/1) ... [2024-11-20 01:02:17,534 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:02:16" (1/1) ... [2024-11-20 01:02:17,664 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:02:16" (1/1) ... [2024-11-20 01:02:17,686 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:02:16" (1/1) ... [2024-11-20 01:02:17,711 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:02:16" (1/1) ... [2024-11-20 01:02:17,729 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:02:16" (1/1) ... [2024-11-20 01:02:17,771 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 01:02:17,773 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 01:02:17,773 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 01:02:17,773 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 01:02:17,774 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:02:16" (1/1) ... [2024-11-20 01:02:17,780 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 01:02:17,791 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 01:02:17,808 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 01:02:17,811 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 01:02:17,862 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 01:02:17,863 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-20 01:02:17,863 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-20 01:02:17,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-20 01:02:17,863 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 01:02:17,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 01:02:18,122 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 01:02:18,123 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 01:02:20,032 INFO L? ?]: Removed 1091 outVars from TransFormulas that were not future-live. [2024-11-20 01:02:20,033 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 01:02:20,062 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 01:02:20,063 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-20 01:02:20,063 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:02:20 BoogieIcfgContainer [2024-11-20 01:02:20,064 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 01:02:20,065 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 01:02:20,066 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 01:02:20,069 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 01:02:20,069 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 01:02:16" (1/3) ... [2024-11-20 01:02:20,070 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b64a7bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 01:02:20, skipping insertion in model container [2024-11-20 01:02:20,070 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:02:16" (2/3) ... [2024-11-20 01:02:20,070 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b64a7bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 01:02:20, skipping insertion in model container [2024-11-20 01:02:20,070 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:02:20" (3/3) ... [2024-11-20 01:02:20,072 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.circular_pointer_top_w16_d16_e0.c [2024-11-20 01:02:20,087 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 01:02:20,088 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-20 01:02:20,171 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 01:02:20,178 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;@77b260f9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 01:02:20,178 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-20 01:02:20,187 INFO L276 IsEmpty]: Start isEmpty. Operand has 552 states, 546 states have (on average 1.4945054945054945) internal successors, (816), 547 states have internal predecessors, (816), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-20 01:02:20,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-11-20 01:02:20,202 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 01:02:20,203 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:02:20,203 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 01:02:20,207 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 01:02:20,208 INFO L85 PathProgramCache]: Analyzing trace with hash -570647152, now seen corresponding path program 1 times [2024-11-20 01:02:20,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 01:02:20,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370711156] [2024-11-20 01:02:20,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 01:02:20,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 01:02:20,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:20,715 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 01:02:20,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:20,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-20 01:02:20,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:20,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-20 01:02:20,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:20,734 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-20 01:02:20,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 01:02:20,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370711156] [2024-11-20 01:02:20,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1370711156] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 01:02:20,735 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 01:02:20,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 01:02:20,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25938537] [2024-11-20 01:02:20,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 01:02:20,742 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-20 01:02:20,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 01:02:20,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-20 01:02:20,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-20 01:02:20,765 INFO L87 Difference]: Start difference. First operand has 552 states, 546 states have (on average 1.4945054945054945) internal successors, (816), 547 states have internal predecessors, (816), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 2 states have (on average 68.5) internal successors, (137), 2 states have internal predecessors, (137), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-20 01:02:20,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 01:02:20,823 INFO L93 Difference]: Finished difference Result 999 states and 1493 transitions. [2024-11-20 01:02:20,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-20 01:02:20,830 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 68.5) internal successors, (137), 2 states have internal predecessors, (137), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 149 [2024-11-20 01:02:20,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 01:02:20,843 INFO L225 Difference]: With dead ends: 999 [2024-11-20 01:02:20,843 INFO L226 Difference]: Without dead ends: 549 [2024-11-20 01:02:20,847 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-20 01:02:20,850 INFO L432 NwaCegarLoop]: 817 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 817 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 01:02:20,851 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 817 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 01:02:20,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states. [2024-11-20 01:02:20,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 549. [2024-11-20 01:02:20,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 549 states, 544 states have (on average 1.4908088235294117) internal successors, (811), 544 states have internal predecessors, (811), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-20 01:02:20,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 817 transitions. [2024-11-20 01:02:20,932 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 817 transitions. Word has length 149 [2024-11-20 01:02:20,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 01:02:20,933 INFO L471 AbstractCegarLoop]: Abstraction has 549 states and 817 transitions. [2024-11-20 01:02:20,935 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 68.5) internal successors, (137), 2 states have internal predecessors, (137), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-20 01:02:20,935 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 817 transitions. [2024-11-20 01:02:20,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-11-20 01:02:20,938 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 01:02:20,941 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:02:20,941 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 01:02:20,941 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 01:02:20,942 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 01:02:20,943 INFO L85 PathProgramCache]: Analyzing trace with hash 1154250, now seen corresponding path program 1 times [2024-11-20 01:02:20,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 01:02:20,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391645182] [2024-11-20 01:02:20,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 01:02:20,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 01:02:21,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:22,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 01:02:22,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:22,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-20 01:02:22,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:22,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-20 01:02:22,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:22,103 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-20 01:02:22,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 01:02:22,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391645182] [2024-11-20 01:02:22,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391645182] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 01:02:22,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 01:02:22,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 01:02:22,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656872314] [2024-11-20 01:02:22,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 01:02:22,107 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 01:02:22,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 01:02:22,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 01:02:22,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 01:02:22,110 INFO L87 Difference]: Start difference. First operand 549 states and 817 transitions. Second operand has 4 states, 4 states have (on average 34.25) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-20 01:02:22,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 01:02:22,168 INFO L93 Difference]: Finished difference Result 553 states and 821 transitions. [2024-11-20 01:02:22,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 01:02:22,169 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.25) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 149 [2024-11-20 01:02:22,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 01:02:22,174 INFO L225 Difference]: With dead ends: 553 [2024-11-20 01:02:22,175 INFO L226 Difference]: Without dead ends: 551 [2024-11-20 01:02:22,175 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 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 01:02:22,176 INFO L432 NwaCegarLoop]: 815 mSDtfsCounter, 0 mSDsluCounter, 1624 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2439 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 01:02:22,177 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2439 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 01:02:22,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 551 states. [2024-11-20 01:02:22,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 551 to 551. [2024-11-20 01:02:22,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 551 states, 546 states have (on average 1.489010989010989) internal successors, (813), 546 states have internal predecessors, (813), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-20 01:02:22,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 819 transitions. [2024-11-20 01:02:22,210 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 819 transitions. Word has length 149 [2024-11-20 01:02:22,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 01:02:22,214 INFO L471 AbstractCegarLoop]: Abstraction has 551 states and 819 transitions. [2024-11-20 01:02:22,214 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.25) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-20 01:02:22,215 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 819 transitions. [2024-11-20 01:02:22,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-20 01:02:22,217 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 01:02:22,217 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:02:22,217 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-20 01:02:22,220 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 01:02:22,220 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 01:02:22,220 INFO L85 PathProgramCache]: Analyzing trace with hash 37477728, now seen corresponding path program 1 times [2024-11-20 01:02:22,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 01:02:22,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051124224] [2024-11-20 01:02:22,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 01:02:22,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 01:02:22,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:22,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 01:02:22,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:22,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-20 01:02:22,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:22,759 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-20 01:02:22,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:22,763 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-20 01:02:22,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 01:02:22,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051124224] [2024-11-20 01:02:22,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051124224] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 01:02:22,766 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 01:02:22,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 01:02:22,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197016116] [2024-11-20 01:02:22,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 01:02:22,768 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 01:02:22,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 01:02:22,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 01:02:22,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 01:02:22,770 INFO L87 Difference]: Start difference. First operand 551 states and 819 transitions. Second operand has 5 states, 5 states have (on average 27.6) internal successors, (138), 5 states have internal predecessors, (138), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-20 01:02:23,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 01:02:23,322 INFO L93 Difference]: Finished difference Result 1371 states and 2041 transitions. [2024-11-20 01:02:23,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 01:02:23,323 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 5 states have internal predecessors, (138), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 150 [2024-11-20 01:02:23,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 01:02:23,327 INFO L225 Difference]: With dead ends: 1371 [2024-11-20 01:02:23,327 INFO L226 Difference]: Without dead ends: 551 [2024-11-20 01:02:23,328 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-20 01:02:23,329 INFO L432 NwaCegarLoop]: 861 mSDtfsCounter, 1618 mSDsluCounter, 1490 mSDsCounter, 0 mSdLazyCounter, 302 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1618 SdHoareTripleChecker+Valid, 2351 SdHoareTripleChecker+Invalid, 339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-20 01:02:23,330 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1618 Valid, 2351 Invalid, 339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 302 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-20 01:02:23,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 551 states. [2024-11-20 01:02:23,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 551 to 551. [2024-11-20 01:02:23,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 551 states, 546 states have (on average 1.4871794871794872) internal successors, (812), 546 states have internal predecessors, (812), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-20 01:02:23,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 818 transitions. [2024-11-20 01:02:23,344 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 818 transitions. Word has length 150 [2024-11-20 01:02:23,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 01:02:23,345 INFO L471 AbstractCegarLoop]: Abstraction has 551 states and 818 transitions. [2024-11-20 01:02:23,345 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 5 states have internal predecessors, (138), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-20 01:02:23,345 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 818 transitions. [2024-11-20 01:02:23,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-20 01:02:23,347 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 01:02:23,348 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:02:23,348 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-20 01:02:23,348 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 01:02:23,349 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 01:02:23,349 INFO L85 PathProgramCache]: Analyzing trace with hash 1675368076, now seen corresponding path program 1 times [2024-11-20 01:02:23,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 01:02:23,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941610252] [2024-11-20 01:02:23,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 01:02:23,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 01:02:23,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:23,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 01:02:23,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:23,800 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-20 01:02:23,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:23,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-20 01:02:23,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:23,804 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-20 01:02:23,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 01:02:23,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941610252] [2024-11-20 01:02:23,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941610252] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 01:02:23,807 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 01:02:23,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 01:02:23,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360238890] [2024-11-20 01:02:23,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 01:02:23,808 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 01:02:23,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 01:02:23,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 01:02:23,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 01:02:23,809 INFO L87 Difference]: Start difference. First operand 551 states and 818 transitions. Second operand has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-20 01:02:23,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 01:02:23,844 INFO L93 Difference]: Finished difference Result 1002 states and 1487 transitions. [2024-11-20 01:02:23,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 01:02:23,845 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 151 [2024-11-20 01:02:23,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 01:02:23,847 INFO L225 Difference]: With dead ends: 1002 [2024-11-20 01:02:23,847 INFO L226 Difference]: Without dead ends: 553 [2024-11-20 01:02:23,851 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 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 01:02:23,853 INFO L432 NwaCegarLoop]: 814 mSDtfsCounter, 0 mSDsluCounter, 1618 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2432 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 01:02:23,854 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2432 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 01:02:23,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2024-11-20 01:02:23,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 553. [2024-11-20 01:02:23,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 548 states have (on average 1.4854014598540146) internal successors, (814), 548 states have internal predecessors, (814), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-20 01:02:23,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 820 transitions. [2024-11-20 01:02:23,868 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 820 transitions. Word has length 151 [2024-11-20 01:02:23,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 01:02:23,870 INFO L471 AbstractCegarLoop]: Abstraction has 553 states and 820 transitions. [2024-11-20 01:02:23,870 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-20 01:02:23,870 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 820 transitions. [2024-11-20 01:02:23,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-20 01:02:23,872 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 01:02:23,872 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:02:23,872 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-20 01:02:23,873 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 01:02:23,873 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 01:02:23,874 INFO L85 PathProgramCache]: Analyzing trace with hash -701162313, now seen corresponding path program 1 times [2024-11-20 01:02:23,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 01:02:23,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601042753] [2024-11-20 01:02:23,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 01:02:23,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 01:02:23,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:24,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 01:02:24,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:24,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-20 01:02:24,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:24,468 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-20 01:02:24,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:24,472 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-20 01:02:24,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 01:02:24,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601042753] [2024-11-20 01:02:24,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601042753] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 01:02:24,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 01:02:24,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 01:02:24,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092483846] [2024-11-20 01:02:24,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 01:02:24,474 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 01:02:24,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 01:02:24,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 01:02:24,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 01:02:24,475 INFO L87 Difference]: Start difference. First operand 553 states and 820 transitions. Second operand has 4 states, 4 states have (on average 35.0) internal successors, (140), 4 states have internal predecessors, (140), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-20 01:02:24,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 01:02:24,648 INFO L93 Difference]: Finished difference Result 1004 states and 1488 transitions. [2024-11-20 01:02:24,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 01:02:24,648 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.0) internal successors, (140), 4 states have internal predecessors, (140), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 152 [2024-11-20 01:02:24,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 01:02:24,651 INFO L225 Difference]: With dead ends: 1004 [2024-11-20 01:02:24,651 INFO L226 Difference]: Without dead ends: 553 [2024-11-20 01:02:24,652 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-20 01:02:24,653 INFO L432 NwaCegarLoop]: 734 mSDtfsCounter, 694 mSDsluCounter, 736 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 694 SdHoareTripleChecker+Valid, 1470 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 01:02:24,653 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [694 Valid, 1470 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 01:02:24,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2024-11-20 01:02:24,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 553. [2024-11-20 01:02:24,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 548 states have (on average 1.4835766423357664) internal successors, (813), 548 states have internal predecessors, (813), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-20 01:02:24,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 819 transitions. [2024-11-20 01:02:24,665 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 819 transitions. Word has length 152 [2024-11-20 01:02:24,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 01:02:24,666 INFO L471 AbstractCegarLoop]: Abstraction has 553 states and 819 transitions. [2024-11-20 01:02:24,666 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.0) internal successors, (140), 4 states have internal predecessors, (140), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-20 01:02:24,666 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 819 transitions. [2024-11-20 01:02:24,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-20 01:02:24,667 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 01:02:24,668 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:02:24,668 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-20 01:02:24,668 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 01:02:24,668 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 01:02:24,669 INFO L85 PathProgramCache]: Analyzing trace with hash 1766175453, now seen corresponding path program 1 times [2024-11-20 01:02:24,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 01:02:24,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912961142] [2024-11-20 01:02:24,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 01:02:24,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 01:02:24,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:25,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 01:02:25,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:25,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-20 01:02:25,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:25,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-20 01:02:25,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:25,052 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-20 01:02:25,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 01:02:25,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912961142] [2024-11-20 01:02:25,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1912961142] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 01:02:25,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 01:02:25,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 01:02:25,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738497787] [2024-11-20 01:02:25,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 01:02:25,054 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 01:02:25,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 01:02:25,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 01:02:25,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 01:02:25,056 INFO L87 Difference]: Start difference. First operand 553 states and 819 transitions. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 5 states have internal predecessors, (141), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-20 01:02:25,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 01:02:25,197 INFO L93 Difference]: Finished difference Result 1010 states and 1494 transitions. [2024-11-20 01:02:25,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 01:02:25,198 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 5 states have internal predecessors, (141), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 153 [2024-11-20 01:02:25,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 01:02:25,201 INFO L225 Difference]: With dead ends: 1010 [2024-11-20 01:02:25,201 INFO L226 Difference]: Without dead ends: 553 [2024-11-20 01:02:25,202 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-20 01:02:25,202 INFO L432 NwaCegarLoop]: 806 mSDtfsCounter, 705 mSDsluCounter, 1544 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 705 SdHoareTripleChecker+Valid, 2350 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 01:02:25,202 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [705 Valid, 2350 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 01:02:25,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2024-11-20 01:02:25,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 553. [2024-11-20 01:02:25,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 548 states have (on average 1.4817518248175183) internal successors, (812), 548 states have internal predecessors, (812), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-20 01:02:25,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 818 transitions. [2024-11-20 01:02:25,214 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 818 transitions. Word has length 153 [2024-11-20 01:02:25,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 01:02:25,214 INFO L471 AbstractCegarLoop]: Abstraction has 553 states and 818 transitions. [2024-11-20 01:02:25,215 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 5 states have internal predecessors, (141), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-20 01:02:25,215 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 818 transitions. [2024-11-20 01:02:25,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-20 01:02:25,216 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 01:02:25,216 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:02:25,217 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-20 01:02:25,217 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 01:02:25,217 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 01:02:25,217 INFO L85 PathProgramCache]: Analyzing trace with hash -855293822, now seen corresponding path program 1 times [2024-11-20 01:02:25,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 01:02:25,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675763292] [2024-11-20 01:02:25,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 01:02:25,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 01:02:25,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:25,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 01:02:25,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:25,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-20 01:02:25,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:25,559 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-20 01:02:25,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:25,562 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-20 01:02:25,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 01:02:25,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675763292] [2024-11-20 01:02:25,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675763292] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 01:02:25,562 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 01:02:25,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 01:02:25,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8800763] [2024-11-20 01:02:25,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 01:02:25,563 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 01:02:25,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 01:02:25,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 01:02:25,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-20 01:02:25,564 INFO L87 Difference]: Start difference. First operand 553 states and 818 transitions. Second operand has 5 states, 5 states have (on average 28.4) internal successors, (142), 5 states have internal predecessors, (142), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-20 01:02:25,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 01:02:25,737 INFO L93 Difference]: Finished difference Result 1004 states and 1484 transitions. [2024-11-20 01:02:25,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 01:02:25,738 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.4) internal successors, (142), 5 states have internal predecessors, (142), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 154 [2024-11-20 01:02:25,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 01:02:25,740 INFO L225 Difference]: With dead ends: 1004 [2024-11-20 01:02:25,740 INFO L226 Difference]: Without dead ends: 553 [2024-11-20 01:02:25,741 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-20 01:02:25,742 INFO L432 NwaCegarLoop]: 734 mSDtfsCounter, 802 mSDsluCounter, 743 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 805 SdHoareTripleChecker+Valid, 1477 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 01:02:25,742 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [805 Valid, 1477 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 01:02:25,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2024-11-20 01:02:25,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 553. [2024-11-20 01:02:25,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 548 states have (on average 1.47992700729927) internal successors, (811), 548 states have internal predecessors, (811), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-20 01:02:25,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 817 transitions. [2024-11-20 01:02:25,754 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 817 transitions. Word has length 154 [2024-11-20 01:02:25,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 01:02:25,754 INFO L471 AbstractCegarLoop]: Abstraction has 553 states and 817 transitions. [2024-11-20 01:02:25,755 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.4) internal successors, (142), 5 states have internal predecessors, (142), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-20 01:02:25,755 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 817 transitions. [2024-11-20 01:02:25,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-20 01:02:25,756 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 01:02:25,756 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:02:25,757 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-20 01:02:25,757 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 01:02:25,757 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 01:02:25,757 INFO L85 PathProgramCache]: Analyzing trace with hash -2129133724, now seen corresponding path program 1 times [2024-11-20 01:02:25,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 01:02:25,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303629963] [2024-11-20 01:02:25,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 01:02:25,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 01:02:25,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:26,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 01:02:26,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:26,125 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-20 01:02:26,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:26,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-20 01:02:26,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:26,130 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-20 01:02:26,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 01:02:26,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303629963] [2024-11-20 01:02:26,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303629963] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 01:02:26,130 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 01:02:26,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 01:02:26,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242282529] [2024-11-20 01:02:26,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 01:02:26,131 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 01:02:26,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 01:02:26,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 01:02:26,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-20 01:02:26,133 INFO L87 Difference]: Start difference. First operand 553 states and 817 transitions. Second operand has 5 states, 5 states have (on average 28.6) internal successors, (143), 5 states have internal predecessors, (143), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-20 01:02:26,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 01:02:26,304 INFO L93 Difference]: Finished difference Result 1004 states and 1482 transitions. [2024-11-20 01:02:26,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 01:02:26,305 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 5 states have internal predecessors, (143), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 155 [2024-11-20 01:02:26,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 01:02:26,308 INFO L225 Difference]: With dead ends: 1004 [2024-11-20 01:02:26,308 INFO L226 Difference]: Without dead ends: 553 [2024-11-20 01:02:26,311 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-20 01:02:26,312 INFO L432 NwaCegarLoop]: 734 mSDtfsCounter, 1487 mSDsluCounter, 736 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1490 SdHoareTripleChecker+Valid, 1470 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 01:02:26,312 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1490 Valid, 1470 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 01:02:26,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2024-11-20 01:02:26,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 553. [2024-11-20 01:02:26,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 548 states have (on average 1.4781021897810218) internal successors, (810), 548 states have internal predecessors, (810), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-20 01:02:26,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 816 transitions. [2024-11-20 01:02:26,327 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 816 transitions. Word has length 155 [2024-11-20 01:02:26,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 01:02:26,327 INFO L471 AbstractCegarLoop]: Abstraction has 553 states and 816 transitions. [2024-11-20 01:02:26,328 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 5 states have internal predecessors, (143), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-20 01:02:26,328 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 816 transitions. [2024-11-20 01:02:26,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-20 01:02:26,330 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 01:02:26,330 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:02:26,330 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-20 01:02:26,330 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 01:02:26,331 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 01:02:26,331 INFO L85 PathProgramCache]: Analyzing trace with hash 713065065, now seen corresponding path program 1 times [2024-11-20 01:02:26,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 01:02:26,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419007042] [2024-11-20 01:02:26,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 01:02:26,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 01:02:26,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:26,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 01:02:26,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:26,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-20 01:02:26,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:26,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-20 01:02:26,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:26,741 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-20 01:02:26,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 01:02:26,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419007042] [2024-11-20 01:02:26,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419007042] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 01:02:26,742 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 01:02:26,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 01:02:26,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43520507] [2024-11-20 01:02:26,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 01:02:26,743 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 01:02:26,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 01:02:26,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 01:02:26,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-20 01:02:26,745 INFO L87 Difference]: Start difference. First operand 553 states and 816 transitions. Second operand has 5 states, 5 states have (on average 28.8) internal successors, (144), 5 states have internal predecessors, (144), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-20 01:02:26,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 01:02:26,918 INFO L93 Difference]: Finished difference Result 1004 states and 1480 transitions. [2024-11-20 01:02:26,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 01:02:26,918 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.8) internal successors, (144), 5 states have internal predecessors, (144), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 156 [2024-11-20 01:02:26,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 01:02:26,921 INFO L225 Difference]: With dead ends: 1004 [2024-11-20 01:02:26,921 INFO L226 Difference]: Without dead ends: 553 [2024-11-20 01:02:26,922 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-20 01:02:26,923 INFO L432 NwaCegarLoop]: 734 mSDtfsCounter, 1473 mSDsluCounter, 736 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1476 SdHoareTripleChecker+Valid, 1470 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 01:02:26,923 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1476 Valid, 1470 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 01:02:26,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2024-11-20 01:02:26,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 553. [2024-11-20 01:02:26,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 548 states have (on average 1.4762773722627738) internal successors, (809), 548 states have internal predecessors, (809), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-20 01:02:26,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 815 transitions. [2024-11-20 01:02:26,936 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 815 transitions. Word has length 156 [2024-11-20 01:02:26,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 01:02:26,937 INFO L471 AbstractCegarLoop]: Abstraction has 553 states and 815 transitions. [2024-11-20 01:02:26,937 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.8) internal successors, (144), 5 states have internal predecessors, (144), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-20 01:02:26,937 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 815 transitions. [2024-11-20 01:02:26,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-20 01:02:26,939 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 01:02:26,939 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:02:26,940 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-20 01:02:26,940 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 01:02:26,940 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 01:02:26,940 INFO L85 PathProgramCache]: Analyzing trace with hash 1875276132, now seen corresponding path program 1 times [2024-11-20 01:02:26,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 01:02:26,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932815571] [2024-11-20 01:02:26,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 01:02:26,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 01:02:27,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:27,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 01:02:27,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:27,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-20 01:02:27,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:27,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-20 01:02:27,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:27,334 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-20 01:02:27,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 01:02:27,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932815571] [2024-11-20 01:02:27,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1932815571] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 01:02:27,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 01:02:27,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 01:02:27,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393974629] [2024-11-20 01:02:27,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 01:02:27,335 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 01:02:27,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 01:02:27,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 01:02:27,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-20 01:02:27,336 INFO L87 Difference]: Start difference. First operand 553 states and 815 transitions. Second operand has 5 states, 5 states have (on average 29.0) internal successors, (145), 5 states have internal predecessors, (145), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-20 01:02:27,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 01:02:27,499 INFO L93 Difference]: Finished difference Result 1004 states and 1478 transitions. [2024-11-20 01:02:27,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 01:02:27,500 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.0) internal successors, (145), 5 states have internal predecessors, (145), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 157 [2024-11-20 01:02:27,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 01:02:27,503 INFO L225 Difference]: With dead ends: 1004 [2024-11-20 01:02:27,503 INFO L226 Difference]: Without dead ends: 553 [2024-11-20 01:02:27,504 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-20 01:02:27,504 INFO L432 NwaCegarLoop]: 734 mSDtfsCounter, 787 mSDsluCounter, 743 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 790 SdHoareTripleChecker+Valid, 1477 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 01:02:27,505 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [790 Valid, 1477 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 01:02:27,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2024-11-20 01:02:27,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 553. [2024-11-20 01:02:27,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 548 states have (on average 1.4744525547445255) internal successors, (808), 548 states have internal predecessors, (808), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-20 01:02:27,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 814 transitions. [2024-11-20 01:02:27,516 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 814 transitions. Word has length 157 [2024-11-20 01:02:27,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 01:02:27,517 INFO L471 AbstractCegarLoop]: Abstraction has 553 states and 814 transitions. [2024-11-20 01:02:27,517 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.0) internal successors, (145), 5 states have internal predecessors, (145), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-20 01:02:27,517 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 814 transitions. [2024-11-20 01:02:27,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-11-20 01:02:27,518 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 01:02:27,519 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:02:27,519 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-20 01:02:27,519 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 01:02:27,520 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 01:02:27,520 INFO L85 PathProgramCache]: Analyzing trace with hash 459471362, now seen corresponding path program 1 times [2024-11-20 01:02:27,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 01:02:27,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559978554] [2024-11-20 01:02:27,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 01:02:27,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 01:02:27,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:27,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 01:02:27,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:27,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-20 01:02:27,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:27,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-20 01:02:27,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:27,920 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-20 01:02:27,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 01:02:27,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559978554] [2024-11-20 01:02:27,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559978554] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 01:02:27,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 01:02:27,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 01:02:27,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044855917] [2024-11-20 01:02:27,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 01:02:27,922 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 01:02:27,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 01:02:27,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 01:02:27,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-20 01:02:27,923 INFO L87 Difference]: Start difference. First operand 553 states and 814 transitions. Second operand has 5 states, 5 states have (on average 29.2) internal successors, (146), 5 states have internal predecessors, (146), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-20 01:02:28,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 01:02:28,084 INFO L93 Difference]: Finished difference Result 1004 states and 1476 transitions. [2024-11-20 01:02:28,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 01:02:28,085 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 5 states have internal predecessors, (146), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 158 [2024-11-20 01:02:28,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 01:02:28,088 INFO L225 Difference]: With dead ends: 1004 [2024-11-20 01:02:28,089 INFO L226 Difference]: Without dead ends: 553 [2024-11-20 01:02:28,090 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-20 01:02:28,090 INFO L432 NwaCegarLoop]: 734 mSDtfsCounter, 1457 mSDsluCounter, 736 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1460 SdHoareTripleChecker+Valid, 1470 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 01:02:28,091 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1460 Valid, 1470 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 01:02:28,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2024-11-20 01:02:28,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 553. [2024-11-20 01:02:28,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 548 states have (on average 1.4726277372262773) internal successors, (807), 548 states have internal predecessors, (807), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-20 01:02:28,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 813 transitions. [2024-11-20 01:02:28,104 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 813 transitions. Word has length 158 [2024-11-20 01:02:28,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 01:02:28,105 INFO L471 AbstractCegarLoop]: Abstraction has 553 states and 813 transitions. [2024-11-20 01:02:28,105 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 5 states have internal predecessors, (146), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-20 01:02:28,105 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 813 transitions. [2024-11-20 01:02:28,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-20 01:02:28,106 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 01:02:28,107 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:02:28,107 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-20 01:02:28,107 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 01:02:28,107 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 01:02:28,108 INFO L85 PathProgramCache]: Analyzing trace with hash 436656029, now seen corresponding path program 1 times [2024-11-20 01:02:28,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 01:02:28,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364754848] [2024-11-20 01:02:28,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 01:02:28,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 01:02:28,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:28,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 01:02:28,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:28,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-20 01:02:28,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:28,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-20 01:02:28,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:28,458 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-20 01:02:28,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 01:02:28,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364754848] [2024-11-20 01:02:28,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [364754848] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 01:02:28,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 01:02:28,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 01:02:28,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788141767] [2024-11-20 01:02:28,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 01:02:28,459 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 01:02:28,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 01:02:28,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 01:02:28,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-20 01:02:28,460 INFO L87 Difference]: Start difference. First operand 553 states and 813 transitions. Second operand has 5 states, 5 states have (on average 29.4) internal successors, (147), 5 states have internal predecessors, (147), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-20 01:02:28,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 01:02:28,620 INFO L93 Difference]: Finished difference Result 1004 states and 1474 transitions. [2024-11-20 01:02:28,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 01:02:28,621 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.4) internal successors, (147), 5 states have internal predecessors, (147), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 159 [2024-11-20 01:02:28,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 01:02:28,623 INFO L225 Difference]: With dead ends: 1004 [2024-11-20 01:02:28,623 INFO L226 Difference]: Without dead ends: 553 [2024-11-20 01:02:28,624 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-20 01:02:28,625 INFO L432 NwaCegarLoop]: 734 mSDtfsCounter, 1449 mSDsluCounter, 736 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1452 SdHoareTripleChecker+Valid, 1470 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 01:02:28,625 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1452 Valid, 1470 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 01:02:28,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2024-11-20 01:02:28,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 553. [2024-11-20 01:02:28,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 548 states have (on average 1.4708029197080292) internal successors, (806), 548 states have internal predecessors, (806), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-20 01:02:28,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 812 transitions. [2024-11-20 01:02:28,639 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 812 transitions. Word has length 159 [2024-11-20 01:02:28,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 01:02:28,640 INFO L471 AbstractCegarLoop]: Abstraction has 553 states and 812 transitions. [2024-11-20 01:02:28,640 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.4) internal successors, (147), 5 states have internal predecessors, (147), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-20 01:02:28,640 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 812 transitions. [2024-11-20 01:02:28,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-20 01:02:28,641 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 01:02:28,642 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:02:28,642 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-20 01:02:28,642 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 01:02:28,642 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 01:02:28,643 INFO L85 PathProgramCache]: Analyzing trace with hash -519943653, now seen corresponding path program 1 times [2024-11-20 01:02:28,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 01:02:28,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733814464] [2024-11-20 01:02:28,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 01:02:28,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 01:02:28,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:29,139 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 01:02:29,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:29,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-20 01:02:29,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:29,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-20 01:02:29,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:29,151 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-20 01:02:29,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 01:02:29,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733814464] [2024-11-20 01:02:29,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [733814464] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 01:02:29,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 01:02:29,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 01:02:29,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21228525] [2024-11-20 01:02:29,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 01:02:29,153 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 01:02:29,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 01:02:29,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 01:02:29,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 01:02:29,154 INFO L87 Difference]: Start difference. First operand 553 states and 812 transitions. Second operand has 4 states, 4 states have (on average 37.0) internal successors, (148), 4 states have internal predecessors, (148), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-20 01:02:29,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 01:02:29,262 INFO L93 Difference]: Finished difference Result 1004 states and 1472 transitions. [2024-11-20 01:02:29,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 01:02:29,263 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.0) internal successors, (148), 4 states have internal predecessors, (148), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 160 [2024-11-20 01:02:29,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 01:02:29,265 INFO L225 Difference]: With dead ends: 1004 [2024-11-20 01:02:29,266 INFO L226 Difference]: Without dead ends: 553 [2024-11-20 01:02:29,266 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-20 01:02:29,267 INFO L432 NwaCegarLoop]: 766 mSDtfsCounter, 700 mSDsluCounter, 768 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 700 SdHoareTripleChecker+Valid, 1534 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 01:02:29,268 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [700 Valid, 1534 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 01:02:29,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2024-11-20 01:02:29,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 553. [2024-11-20 01:02:29,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 548 states have (on average 1.468978102189781) internal successors, (805), 548 states have internal predecessors, (805), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-20 01:02:29,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 811 transitions. [2024-11-20 01:02:29,281 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 811 transitions. Word has length 160 [2024-11-20 01:02:29,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 01:02:29,282 INFO L471 AbstractCegarLoop]: Abstraction has 553 states and 811 transitions. [2024-11-20 01:02:29,282 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.0) internal successors, (148), 4 states have internal predecessors, (148), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-20 01:02:29,282 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 811 transitions. [2024-11-20 01:02:29,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-20 01:02:29,283 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 01:02:29,284 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:02:29,284 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-20 01:02:29,284 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 01:02:29,284 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 01:02:29,285 INFO L85 PathProgramCache]: Analyzing trace with hash 576386674, now seen corresponding path program 1 times [2024-11-20 01:02:29,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 01:02:29,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190032254] [2024-11-20 01:02:29,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 01:02:29,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 01:02:29,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:29,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 01:02:29,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:29,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-20 01:02:29,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:29,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-20 01:02:29,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:29,636 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-20 01:02:29,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 01:02:29,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190032254] [2024-11-20 01:02:29,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190032254] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 01:02:29,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 01:02:29,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 01:02:29,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205933775] [2024-11-20 01:02:29,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 01:02:29,638 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 01:02:29,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 01:02:29,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 01:02:29,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-20 01:02:29,639 INFO L87 Difference]: Start difference. First operand 553 states and 811 transitions. Second operand has 5 states, 5 states have (on average 29.8) internal successors, (149), 5 states have internal predecessors, (149), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-20 01:02:29,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 01:02:29,747 INFO L93 Difference]: Finished difference Result 1004 states and 1470 transitions. [2024-11-20 01:02:29,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 01:02:29,749 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.8) internal successors, (149), 5 states have internal predecessors, (149), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 161 [2024-11-20 01:02:29,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 01:02:29,751 INFO L225 Difference]: With dead ends: 1004 [2024-11-20 01:02:29,751 INFO L226 Difference]: Without dead ends: 553 [2024-11-20 01:02:29,752 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-20 01:02:29,753 INFO L432 NwaCegarLoop]: 766 mSDtfsCounter, 1489 mSDsluCounter, 768 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1492 SdHoareTripleChecker+Valid, 1534 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 01:02:29,753 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1492 Valid, 1534 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 01:02:29,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2024-11-20 01:02:29,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 553. [2024-11-20 01:02:29,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 548 states have (on average 1.467153284671533) internal successors, (804), 548 states have internal predecessors, (804), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-20 01:02:29,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 810 transitions. [2024-11-20 01:02:29,767 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 810 transitions. Word has length 161 [2024-11-20 01:02:29,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 01:02:29,767 INFO L471 AbstractCegarLoop]: Abstraction has 553 states and 810 transitions. [2024-11-20 01:02:29,768 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.8) internal successors, (149), 5 states have internal predecessors, (149), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-20 01:02:29,768 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 810 transitions. [2024-11-20 01:02:29,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-20 01:02:29,769 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 01:02:29,770 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:02:29,770 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-20 01:02:29,770 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 01:02:29,770 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 01:02:29,770 INFO L85 PathProgramCache]: Analyzing trace with hash 1152750132, now seen corresponding path program 1 times [2024-11-20 01:02:29,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 01:02:29,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874019087] [2024-11-20 01:02:29,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 01:02:29,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 01:02:29,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:30,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 01:02:30,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:30,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-20 01:02:30,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:30,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-20 01:02:30,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:30,097 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-20 01:02:30,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 01:02:30,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874019087] [2024-11-20 01:02:30,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874019087] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 01:02:30,098 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 01:02:30,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 01:02:30,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30174587] [2024-11-20 01:02:30,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 01:02:30,099 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 01:02:30,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 01:02:30,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 01:02:30,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-20 01:02:30,100 INFO L87 Difference]: Start difference. First operand 553 states and 810 transitions. Second operand has 5 states, 5 states have (on average 30.0) internal successors, (150), 5 states have internal predecessors, (150), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-20 01:02:30,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 01:02:30,208 INFO L93 Difference]: Finished difference Result 1004 states and 1468 transitions. [2024-11-20 01:02:30,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 01:02:30,209 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.0) internal successors, (150), 5 states have internal predecessors, (150), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 162 [2024-11-20 01:02:30,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 01:02:30,211 INFO L225 Difference]: With dead ends: 1004 [2024-11-20 01:02:30,212 INFO L226 Difference]: Without dead ends: 553 [2024-11-20 01:02:30,212 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-20 01:02:30,213 INFO L432 NwaCegarLoop]: 766 mSDtfsCounter, 1481 mSDsluCounter, 768 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1484 SdHoareTripleChecker+Valid, 1534 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 01:02:30,213 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1484 Valid, 1534 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 01:02:30,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2024-11-20 01:02:30,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 553. [2024-11-20 01:02:30,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 548 states have (on average 1.4653284671532847) internal successors, (803), 548 states have internal predecessors, (803), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-20 01:02:30,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 809 transitions. [2024-11-20 01:02:30,225 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 809 transitions. Word has length 162 [2024-11-20 01:02:30,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 01:02:30,226 INFO L471 AbstractCegarLoop]: Abstraction has 553 states and 809 transitions. [2024-11-20 01:02:30,226 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.0) internal successors, (150), 5 states have internal predecessors, (150), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-20 01:02:30,226 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 809 transitions. [2024-11-20 01:02:30,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-11-20 01:02:30,227 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 01:02:30,228 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:02:30,228 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-20 01:02:30,228 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 01:02:30,228 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 01:02:30,228 INFO L85 PathProgramCache]: Analyzing trace with hash 987506219, now seen corresponding path program 1 times [2024-11-20 01:02:30,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 01:02:30,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144486399] [2024-11-20 01:02:30,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 01:02:30,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 01:02:30,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:30,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 01:02:30,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:30,547 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-20 01:02:30,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:30,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-20 01:02:30,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:30,552 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-20 01:02:30,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 01:02:30,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144486399] [2024-11-20 01:02:30,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144486399] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 01:02:30,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 01:02:30,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 01:02:30,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969858710] [2024-11-20 01:02:30,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 01:02:30,553 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 01:02:30,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 01:02:30,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 01:02:30,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-20 01:02:30,554 INFO L87 Difference]: Start difference. First operand 553 states and 809 transitions. Second operand has 5 states, 5 states have (on average 30.2) internal successors, (151), 5 states have internal predecessors, (151), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-20 01:02:30,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 01:02:30,659 INFO L93 Difference]: Finished difference Result 1004 states and 1466 transitions. [2024-11-20 01:02:30,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 01:02:30,661 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 5 states have internal predecessors, (151), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 163 [2024-11-20 01:02:30,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 01:02:30,664 INFO L225 Difference]: With dead ends: 1004 [2024-11-20 01:02:30,664 INFO L226 Difference]: Without dead ends: 553 [2024-11-20 01:02:30,665 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-20 01:02:30,665 INFO L432 NwaCegarLoop]: 766 mSDtfsCounter, 787 mSDsluCounter, 775 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 790 SdHoareTripleChecker+Valid, 1541 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 01:02:30,666 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [790 Valid, 1541 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 01:02:30,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2024-11-20 01:02:30,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 553. [2024-11-20 01:02:30,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 548 states have (on average 1.4635036496350364) internal successors, (802), 548 states have internal predecessors, (802), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-20 01:02:30,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 808 transitions. [2024-11-20 01:02:30,679 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 808 transitions. Word has length 163 [2024-11-20 01:02:30,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 01:02:30,680 INFO L471 AbstractCegarLoop]: Abstraction has 553 states and 808 transitions. [2024-11-20 01:02:30,680 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 5 states have internal predecessors, (151), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-20 01:02:30,680 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 808 transitions. [2024-11-20 01:02:30,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-20 01:02:30,682 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 01:02:30,682 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:02:30,682 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-20 01:02:30,682 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 01:02:30,683 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 01:02:30,683 INFO L85 PathProgramCache]: Analyzing trace with hash 2004832973, now seen corresponding path program 1 times [2024-11-20 01:02:30,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 01:02:30,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82930027] [2024-11-20 01:02:30,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 01:02:30,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 01:02:30,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:31,253 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 01:02:31,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:31,257 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-20 01:02:31,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:31,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-20 01:02:31,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:31,263 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-20 01:02:31,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 01:02:31,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82930027] [2024-11-20 01:02:31,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82930027] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 01:02:31,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 01:02:31,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 01:02:31,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745769216] [2024-11-20 01:02:31,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 01:02:31,265 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 01:02:31,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 01:02:31,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 01:02:31,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 01:02:31,266 INFO L87 Difference]: Start difference. First operand 553 states and 808 transitions. Second operand has 4 states, 4 states have (on average 38.0) internal successors, (152), 4 states have internal predecessors, (152), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-20 01:02:31,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 01:02:31,340 INFO L93 Difference]: Finished difference Result 1004 states and 1464 transitions. [2024-11-20 01:02:31,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 01:02:31,341 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.0) internal successors, (152), 4 states have internal predecessors, (152), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 164 [2024-11-20 01:02:31,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 01:02:31,343 INFO L225 Difference]: With dead ends: 1004 [2024-11-20 01:02:31,343 INFO L226 Difference]: Without dead ends: 553 [2024-11-20 01:02:31,344 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-20 01:02:31,345 INFO L432 NwaCegarLoop]: 782 mSDtfsCounter, 699 mSDsluCounter, 784 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 699 SdHoareTripleChecker+Valid, 1566 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 01:02:31,345 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [699 Valid, 1566 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 01:02:31,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2024-11-20 01:02:31,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 553. [2024-11-20 01:02:31,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 548 states have (on average 1.4598540145985401) internal successors, (800), 548 states have internal predecessors, (800), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-20 01:02:31,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 806 transitions. [2024-11-20 01:02:31,360 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 806 transitions. Word has length 164 [2024-11-20 01:02:31,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 01:02:31,360 INFO L471 AbstractCegarLoop]: Abstraction has 553 states and 806 transitions. [2024-11-20 01:02:31,360 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.0) internal successors, (152), 4 states have internal predecessors, (152), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-20 01:02:31,361 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 806 transitions. [2024-11-20 01:02:31,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-11-20 01:02:31,362 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 01:02:31,362 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:02:31,362 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-20 01:02:31,362 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 01:02:31,363 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 01:02:31,363 INFO L85 PathProgramCache]: Analyzing trace with hash -1458968950, now seen corresponding path program 1 times [2024-11-20 01:02:31,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 01:02:31,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582470703] [2024-11-20 01:02:31,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 01:02:31,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 01:02:31,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:31,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 01:02:31,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:31,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-20 01:02:31,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:31,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-20 01:02:31,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:31,811 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-20 01:02:31,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 01:02:31,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582470703] [2024-11-20 01:02:31,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582470703] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 01:02:31,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 01:02:31,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 01:02:31,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848548759] [2024-11-20 01:02:31,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 01:02:31,813 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 01:02:31,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 01:02:31,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 01:02:31,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-20 01:02:31,814 INFO L87 Difference]: Start difference. First operand 553 states and 806 transitions. Second operand has 5 states, 5 states have (on average 30.8) internal successors, (154), 5 states have internal predecessors, (154), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-20 01:02:31,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 01:02:31,881 INFO L93 Difference]: Finished difference Result 1004 states and 1460 transitions. [2024-11-20 01:02:31,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 01:02:31,882 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 5 states have internal predecessors, (154), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 166 [2024-11-20 01:02:31,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 01:02:31,884 INFO L225 Difference]: With dead ends: 1004 [2024-11-20 01:02:31,885 INFO L226 Difference]: Without dead ends: 553 [2024-11-20 01:02:31,885 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-20 01:02:31,886 INFO L432 NwaCegarLoop]: 782 mSDtfsCounter, 1481 mSDsluCounter, 784 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1484 SdHoareTripleChecker+Valid, 1566 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 01:02:31,887 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1484 Valid, 1566 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 01:02:31,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2024-11-20 01:02:31,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 553. [2024-11-20 01:02:31,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 548 states have (on average 1.4580291970802919) internal successors, (799), 548 states have internal predecessors, (799), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-20 01:02:31,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 805 transitions. [2024-11-20 01:02:31,899 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 805 transitions. Word has length 166 [2024-11-20 01:02:31,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 01:02:31,899 INFO L471 AbstractCegarLoop]: Abstraction has 553 states and 805 transitions. [2024-11-20 01:02:31,900 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 5 states have internal predecessors, (154), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-20 01:02:31,900 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 805 transitions. [2024-11-20 01:02:31,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-20 01:02:31,902 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 01:02:31,902 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:02:31,902 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-20 01:02:31,902 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 01:02:31,902 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 01:02:31,903 INFO L85 PathProgramCache]: Analyzing trace with hash 2035593486, now seen corresponding path program 1 times [2024-11-20 01:02:31,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 01:02:31,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184882661] [2024-11-20 01:02:31,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 01:02:31,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 01:02:32,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:32,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 01:02:32,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:32,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-20 01:02:32,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:32,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-20 01:02:32,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:32,540 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-20 01:02:32,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 01:02:32,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184882661] [2024-11-20 01:02:32,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1184882661] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 01:02:32,541 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 01:02:32,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 01:02:32,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689167179] [2024-11-20 01:02:32,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 01:02:32,541 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 01:02:32,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 01:02:32,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 01:02:32,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 01:02:32,542 INFO L87 Difference]: Start difference. First operand 553 states and 805 transitions. Second operand has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-20 01:02:32,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 01:02:32,610 INFO L93 Difference]: Finished difference Result 1004 states and 1458 transitions. [2024-11-20 01:02:32,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 01:02:32,611 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 167 [2024-11-20 01:02:32,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 01:02:32,613 INFO L225 Difference]: With dead ends: 1004 [2024-11-20 01:02:32,613 INFO L226 Difference]: Without dead ends: 553 [2024-11-20 01:02:32,614 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-20 01:02:32,614 INFO L432 NwaCegarLoop]: 785 mSDtfsCounter, 734 mSDsluCounter, 787 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 736 SdHoareTripleChecker+Valid, 1572 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 01:02:32,615 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [736 Valid, 1572 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 01:02:32,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2024-11-20 01:02:32,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 553. [2024-11-20 01:02:32,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 548 states have (on average 1.4562043795620438) internal successors, (798), 548 states have internal predecessors, (798), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-20 01:02:32,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 804 transitions. [2024-11-20 01:02:32,626 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 804 transitions. Word has length 167 [2024-11-20 01:02:32,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 01:02:32,626 INFO L471 AbstractCegarLoop]: Abstraction has 553 states and 804 transitions. [2024-11-20 01:02:32,626 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-20 01:02:32,627 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 804 transitions. [2024-11-20 01:02:32,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-20 01:02:32,628 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 01:02:32,628 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:02:32,628 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-20 01:02:32,628 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 01:02:32,629 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 01:02:32,629 INFO L85 PathProgramCache]: Analyzing trace with hash 116921244, now seen corresponding path program 1 times [2024-11-20 01:02:32,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 01:02:32,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201798765] [2024-11-20 01:02:32,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 01:02:32,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 01:02:32,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:33,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 01:02:33,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:33,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-20 01:02:33,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:33,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-20 01:02:33,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:33,168 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-20 01:02:33,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 01:02:33,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201798765] [2024-11-20 01:02:33,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [201798765] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 01:02:33,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 01:02:33,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 01:02:33,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194866451] [2024-11-20 01:02:33,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 01:02:33,171 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 01:02:33,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 01:02:33,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 01:02:33,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 01:02:33,172 INFO L87 Difference]: Start difference. First operand 553 states and 804 transitions. Second operand has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-20 01:02:33,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 01:02:33,237 INFO L93 Difference]: Finished difference Result 1004 states and 1456 transitions. [2024-11-20 01:02:33,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 01:02:33,238 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 168 [2024-11-20 01:02:33,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 01:02:33,240 INFO L225 Difference]: With dead ends: 1004 [2024-11-20 01:02:33,241 INFO L226 Difference]: Without dead ends: 553 [2024-11-20 01:02:33,241 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-20 01:02:33,243 INFO L432 NwaCegarLoop]: 785 mSDtfsCounter, 732 mSDsluCounter, 787 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 734 SdHoareTripleChecker+Valid, 1572 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 01:02:33,243 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [734 Valid, 1572 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 01:02:33,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2024-11-20 01:02:33,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 553. [2024-11-20 01:02:33,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 548 states have (on average 1.4543795620437956) internal successors, (797), 548 states have internal predecessors, (797), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-20 01:02:33,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 803 transitions. [2024-11-20 01:02:33,263 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 803 transitions. Word has length 168 [2024-11-20 01:02:33,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 01:02:33,263 INFO L471 AbstractCegarLoop]: Abstraction has 553 states and 803 transitions. [2024-11-20 01:02:33,263 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-20 01:02:33,263 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 803 transitions. [2024-11-20 01:02:33,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-20 01:02:33,265 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 01:02:33,265 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:02:33,265 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-20 01:02:33,265 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 01:02:33,266 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 01:02:33,266 INFO L85 PathProgramCache]: Analyzing trace with hash -2032439125, now seen corresponding path program 1 times [2024-11-20 01:02:33,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 01:02:33,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545018484] [2024-11-20 01:02:33,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 01:02:33,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 01:02:33,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:33,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 01:02:33,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:33,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-20 01:02:33,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:33,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 01:02:33,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:33,820 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-20 01:02:33,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 01:02:33,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545018484] [2024-11-20 01:02:33,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [545018484] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 01:02:33,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 01:02:33,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 01:02:33,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025483251] [2024-11-20 01:02:33,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 01:02:33,823 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 01:02:33,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 01:02:33,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 01:02:33,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 01:02:33,824 INFO L87 Difference]: Start difference. First operand 553 states and 803 transitions. Second operand has 4 states, 4 states have (on average 39.25) internal successors, (157), 4 states have internal predecessors, (157), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-20 01:02:33,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 01:02:33,932 INFO L93 Difference]: Finished difference Result 1004 states and 1454 transitions. [2024-11-20 01:02:33,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 01:02:33,933 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.25) internal successors, (157), 4 states have internal predecessors, (157), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 169 [2024-11-20 01:02:33,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 01:02:33,935 INFO L225 Difference]: With dead ends: 1004 [2024-11-20 01:02:33,935 INFO L226 Difference]: Without dead ends: 553 [2024-11-20 01:02:33,936 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-20 01:02:33,937 INFO L432 NwaCegarLoop]: 761 mSDtfsCounter, 685 mSDsluCounter, 763 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 685 SdHoareTripleChecker+Valid, 1524 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 01:02:33,938 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [685 Valid, 1524 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 01:02:33,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2024-11-20 01:02:33,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 553. [2024-11-20 01:02:33,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 548 states have (on average 1.4525547445255473) internal successors, (796), 548 states have internal predecessors, (796), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-20 01:02:33,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 802 transitions. [2024-11-20 01:02:33,953 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 802 transitions. Word has length 169 [2024-11-20 01:02:33,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 01:02:33,953 INFO L471 AbstractCegarLoop]: Abstraction has 553 states and 802 transitions. [2024-11-20 01:02:33,954 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.25) internal successors, (157), 4 states have internal predecessors, (157), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-20 01:02:33,954 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 802 transitions. [2024-11-20 01:02:33,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-11-20 01:02:33,955 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 01:02:33,955 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:02:33,955 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-20 01:02:33,955 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 01:02:33,956 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 01:02:33,956 INFO L85 PathProgramCache]: Analyzing trace with hash 100797513, now seen corresponding path program 1 times [2024-11-20 01:02:33,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 01:02:33,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852778389] [2024-11-20 01:02:33,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 01:02:33,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 01:02:34,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:34,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 01:02:34,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:34,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-20 01:02:34,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:34,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 01:02:34,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:34,538 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-20 01:02:34,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 01:02:34,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852778389] [2024-11-20 01:02:34,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852778389] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 01:02:34,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 01:02:34,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 01:02:34,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091860023] [2024-11-20 01:02:34,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 01:02:34,540 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 01:02:34,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 01:02:34,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 01:02:34,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-20 01:02:34,542 INFO L87 Difference]: Start difference. First operand 553 states and 802 transitions. Second operand has 5 states, 5 states have (on average 31.6) internal successors, (158), 5 states have internal predecessors, (158), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-20 01:02:34,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 01:02:34,663 INFO L93 Difference]: Finished difference Result 1004 states and 1452 transitions. [2024-11-20 01:02:34,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 01:02:34,665 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.6) internal successors, (158), 5 states have internal predecessors, (158), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 170 [2024-11-20 01:02:34,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 01:02:34,667 INFO L225 Difference]: With dead ends: 1004 [2024-11-20 01:02:34,668 INFO L226 Difference]: Without dead ends: 553 [2024-11-20 01:02:34,668 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-20 01:02:34,670 INFO L432 NwaCegarLoop]: 761 mSDtfsCounter, 1362 mSDsluCounter, 763 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1362 SdHoareTripleChecker+Valid, 1524 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 01:02:34,670 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1362 Valid, 1524 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 01:02:34,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2024-11-20 01:02:34,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 553. [2024-11-20 01:02:34,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 548 states have (on average 1.4507299270072993) internal successors, (795), 548 states have internal predecessors, (795), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-20 01:02:34,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 801 transitions. [2024-11-20 01:02:34,684 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 801 transitions. Word has length 170 [2024-11-20 01:02:34,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 01:02:34,685 INFO L471 AbstractCegarLoop]: Abstraction has 553 states and 801 transitions. [2024-11-20 01:02:34,685 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.6) internal successors, (158), 5 states have internal predecessors, (158), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-20 01:02:34,685 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 801 transitions. [2024-11-20 01:02:34,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-11-20 01:02:34,686 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 01:02:34,687 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:02:34,687 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-20 01:02:34,687 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 01:02:34,687 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 01:02:34,687 INFO L85 PathProgramCache]: Analyzing trace with hash -800278036, now seen corresponding path program 1 times [2024-11-20 01:02:34,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 01:02:34,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935033672] [2024-11-20 01:02:34,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 01:02:34,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 01:02:34,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:35,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 01:02:35,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:35,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-20 01:02:35,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:35,268 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 01:02:35,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:35,273 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-20 01:02:35,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 01:02:35,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935033672] [2024-11-20 01:02:35,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [935033672] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 01:02:35,274 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 01:02:35,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 01:02:35,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116211135] [2024-11-20 01:02:35,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 01:02:35,276 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 01:02:35,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 01:02:35,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 01:02:35,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-20 01:02:35,278 INFO L87 Difference]: Start difference. First operand 553 states and 801 transitions. Second operand has 5 states, 5 states have (on average 31.8) internal successors, (159), 5 states have internal predecessors, (159), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-20 01:02:35,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 01:02:35,392 INFO L93 Difference]: Finished difference Result 1004 states and 1450 transitions. [2024-11-20 01:02:35,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 01:02:35,392 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.8) internal successors, (159), 5 states have internal predecessors, (159), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 171 [2024-11-20 01:02:35,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 01:02:35,395 INFO L225 Difference]: With dead ends: 1004 [2024-11-20 01:02:35,396 INFO L226 Difference]: Without dead ends: 553 [2024-11-20 01:02:35,396 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-20 01:02:35,397 INFO L432 NwaCegarLoop]: 761 mSDtfsCounter, 682 mSDsluCounter, 770 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 682 SdHoareTripleChecker+Valid, 1531 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 01:02:35,397 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [682 Valid, 1531 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 01:02:35,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2024-11-20 01:02:35,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 553. [2024-11-20 01:02:35,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 548 states have (on average 1.448905109489051) internal successors, (794), 548 states have internal predecessors, (794), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-20 01:02:35,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 800 transitions. [2024-11-20 01:02:35,411 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 800 transitions. Word has length 171 [2024-11-20 01:02:35,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 01:02:35,412 INFO L471 AbstractCegarLoop]: Abstraction has 553 states and 800 transitions. [2024-11-20 01:02:35,412 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.8) internal successors, (159), 5 states have internal predecessors, (159), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-20 01:02:35,413 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 800 transitions. [2024-11-20 01:02:35,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-11-20 01:02:35,414 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 01:02:35,414 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:02:35,414 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-20 01:02:35,414 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 01:02:35,415 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 01:02:35,415 INFO L85 PathProgramCache]: Analyzing trace with hash -451886392, now seen corresponding path program 1 times [2024-11-20 01:02:35,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 01:02:35,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100920960] [2024-11-20 01:02:35,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 01:02:35,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 01:02:35,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:36,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 01:02:36,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:36,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-20 01:02:36,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:36,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 01:02:36,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:36,222 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-20 01:02:36,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 01:02:36,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100920960] [2024-11-20 01:02:36,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100920960] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 01:02:36,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 01:02:36,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 01:02:36,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619198600] [2024-11-20 01:02:36,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 01:02:36,224 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 01:02:36,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 01:02:36,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 01:02:36,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 01:02:36,226 INFO L87 Difference]: Start difference. First operand 553 states and 800 transitions. Second operand has 5 states, 5 states have (on average 32.0) internal successors, (160), 5 states have internal predecessors, (160), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-20 01:02:36,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 01:02:36,507 INFO L93 Difference]: Finished difference Result 1010 states and 1456 transitions. [2024-11-20 01:02:36,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 01:02:36,507 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.0) internal successors, (160), 5 states have internal predecessors, (160), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 172 [2024-11-20 01:02:36,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 01:02:36,511 INFO L225 Difference]: With dead ends: 1010 [2024-11-20 01:02:36,511 INFO L226 Difference]: Without dead ends: 557 [2024-11-20 01:02:36,512 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 01:02:36,513 INFO L432 NwaCegarLoop]: 790 mSDtfsCounter, 2 mSDsluCounter, 2177 mSDsCounter, 0 mSdLazyCounter, 216 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2967 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 01:02:36,513 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2967 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 216 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 01:02:36,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2024-11-20 01:02:36,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 555. [2024-11-20 01:02:36,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 550 states have (on average 1.4472727272727273) internal successors, (796), 550 states have internal predecessors, (796), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-20 01:02:36,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 802 transitions. [2024-11-20 01:02:36,532 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 802 transitions. Word has length 172 [2024-11-20 01:02:36,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 01:02:36,532 INFO L471 AbstractCegarLoop]: Abstraction has 555 states and 802 transitions. [2024-11-20 01:02:36,532 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.0) internal successors, (160), 5 states have internal predecessors, (160), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-20 01:02:36,533 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 802 transitions. [2024-11-20 01:02:36,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-20 01:02:36,534 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 01:02:36,534 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:02:36,535 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-20 01:02:36,535 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 01:02:36,535 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 01:02:36,535 INFO L85 PathProgramCache]: Analyzing trace with hash 1945385383, now seen corresponding path program 1 times [2024-11-20 01:02:36,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 01:02:36,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609091867] [2024-11-20 01:02:36,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 01:02:36,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 01:02:36,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:37,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 01:02:37,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:37,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-20 01:02:37,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:37,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 01:02:37,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:37,523 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-20 01:02:37,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 01:02:37,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609091867] [2024-11-20 01:02:37,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1609091867] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 01:02:37,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 01:02:37,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 01:02:37,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409417168] [2024-11-20 01:02:37,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 01:02:37,524 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 01:02:37,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 01:02:37,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 01:02:37,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-20 01:02:37,525 INFO L87 Difference]: Start difference. First operand 555 states and 802 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 5 states have internal predecessors, (161), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-20 01:02:37,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 01:02:37,945 INFO L93 Difference]: Finished difference Result 1010 states and 1455 transitions. [2024-11-20 01:02:37,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 01:02:37,946 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 5 states have internal predecessors, (161), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 173 [2024-11-20 01:02:37,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 01:02:37,948 INFO L225 Difference]: With dead ends: 1010 [2024-11-20 01:02:37,949 INFO L226 Difference]: Without dead ends: 557 [2024-11-20 01:02:37,950 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-20 01:02:37,950 INFO L432 NwaCegarLoop]: 606 mSDtfsCounter, 696 mSDsluCounter, 1205 mSDsCounter, 0 mSdLazyCounter, 583 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 696 SdHoareTripleChecker+Valid, 1811 SdHoareTripleChecker+Invalid, 583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 583 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-20 01:02:37,951 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [696 Valid, 1811 Invalid, 583 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 583 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-20 01:02:37,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2024-11-20 01:02:37,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 556. [2024-11-20 01:02:37,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 556 states, 551 states have (on average 1.4464609800362977) internal successors, (797), 551 states have internal predecessors, (797), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-20 01:02:37,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 803 transitions. [2024-11-20 01:02:37,971 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 803 transitions. Word has length 173 [2024-11-20 01:02:37,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 01:02:37,971 INFO L471 AbstractCegarLoop]: Abstraction has 556 states and 803 transitions. [2024-11-20 01:02:37,972 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 5 states have internal predecessors, (161), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-20 01:02:37,972 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 803 transitions. [2024-11-20 01:02:37,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-20 01:02:37,975 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 01:02:37,976 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:02:37,976 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-20 01:02:37,976 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 01:02:37,976 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 01:02:37,976 INFO L85 PathProgramCache]: Analyzing trace with hash -1981593280, now seen corresponding path program 1 times [2024-11-20 01:02:37,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 01:02:37,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467215320] [2024-11-20 01:02:37,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 01:02:37,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 01:02:38,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:38,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 01:02:38,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:38,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-20 01:02:38,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:38,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 01:02:38,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:38,517 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-20 01:02:38,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 01:02:38,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467215320] [2024-11-20 01:02:38,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467215320] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 01:02:38,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 01:02:38,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 01:02:38,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252598257] [2024-11-20 01:02:38,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 01:02:38,518 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 01:02:38,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 01:02:38,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 01:02:38,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-20 01:02:38,519 INFO L87 Difference]: Start difference. First operand 556 states and 803 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 5 states have internal predecessors, (161), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-20 01:02:38,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 01:02:38,683 INFO L93 Difference]: Finished difference Result 1010 states and 1454 transitions. [2024-11-20 01:02:38,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 01:02:38,683 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 5 states have internal predecessors, (161), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 173 [2024-11-20 01:02:38,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 01:02:38,685 INFO L225 Difference]: With dead ends: 1010 [2024-11-20 01:02:38,686 INFO L226 Difference]: Without dead ends: 556 [2024-11-20 01:02:38,686 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-20 01:02:38,687 INFO L432 NwaCegarLoop]: 722 mSDtfsCounter, 668 mSDsluCounter, 724 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 668 SdHoareTripleChecker+Valid, 1446 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 01:02:38,687 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [668 Valid, 1446 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 01:02:38,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2024-11-20 01:02:38,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 556. [2024-11-20 01:02:38,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 556 states, 551 states have (on average 1.4446460980036298) internal successors, (796), 551 states have internal predecessors, (796), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-20 01:02:38,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 802 transitions. [2024-11-20 01:02:38,699 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 802 transitions. Word has length 173 [2024-11-20 01:02:38,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 01:02:38,699 INFO L471 AbstractCegarLoop]: Abstraction has 556 states and 802 transitions. [2024-11-20 01:02:38,699 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 5 states have internal predecessors, (161), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-20 01:02:38,700 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 802 transitions. [2024-11-20 01:02:38,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-20 01:02:38,701 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 01:02:38,701 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:02:38,701 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-20 01:02:38,702 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 01:02:38,702 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 01:02:38,702 INFO L85 PathProgramCache]: Analyzing trace with hash 973417876, now seen corresponding path program 1 times [2024-11-20 01:02:38,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 01:02:38,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123060117] [2024-11-20 01:02:38,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 01:02:38,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 01:02:38,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:39,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 01:02:39,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:39,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-20 01:02:39,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:39,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 01:02:39,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:39,174 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-20 01:02:39,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 01:02:39,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123060117] [2024-11-20 01:02:39,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123060117] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 01:02:39,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 01:02:39,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 01:02:39,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119941506] [2024-11-20 01:02:39,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 01:02:39,177 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 01:02:39,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 01:02:39,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 01:02:39,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-20 01:02:39,180 INFO L87 Difference]: Start difference. First operand 556 states and 802 transitions. Second operand has 5 states, 5 states have (on average 32.4) internal successors, (162), 5 states have internal predecessors, (162), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-20 01:02:39,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 01:02:39,366 INFO L93 Difference]: Finished difference Result 1010 states and 1452 transitions. [2024-11-20 01:02:39,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 01:02:39,367 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.4) internal successors, (162), 5 states have internal predecessors, (162), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 174 [2024-11-20 01:02:39,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 01:02:39,369 INFO L225 Difference]: With dead ends: 1010 [2024-11-20 01:02:39,369 INFO L226 Difference]: Without dead ends: 556 [2024-11-20 01:02:39,370 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-20 01:02:39,371 INFO L432 NwaCegarLoop]: 722 mSDtfsCounter, 664 mSDsluCounter, 731 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 664 SdHoareTripleChecker+Valid, 1453 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 01:02:39,371 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [664 Valid, 1453 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 01:02:39,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2024-11-20 01:02:39,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 556. [2024-11-20 01:02:39,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 556 states, 551 states have (on average 1.442831215970962) internal successors, (795), 551 states have internal predecessors, (795), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-20 01:02:39,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 801 transitions. [2024-11-20 01:02:39,386 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 801 transitions. Word has length 174 [2024-11-20 01:02:39,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 01:02:39,386 INFO L471 AbstractCegarLoop]: Abstraction has 556 states and 801 transitions. [2024-11-20 01:02:39,386 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.4) internal successors, (162), 5 states have internal predecessors, (162), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-20 01:02:39,386 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 801 transitions. [2024-11-20 01:02:39,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-20 01:02:39,388 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 01:02:39,388 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:02:39,388 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-20 01:02:39,388 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 01:02:39,389 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 01:02:39,390 INFO L85 PathProgramCache]: Analyzing trace with hash -1296489791, now seen corresponding path program 1 times [2024-11-20 01:02:39,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 01:02:39,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241561633] [2024-11-20 01:02:39,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 01:02:39,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 01:02:39,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:39,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 01:02:39,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:39,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-20 01:02:39,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:39,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 01:02:39,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:39,915 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-20 01:02:39,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 01:02:39,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241561633] [2024-11-20 01:02:39,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1241561633] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 01:02:39,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 01:02:39,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 01:02:39,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547165175] [2024-11-20 01:02:39,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 01:02:39,917 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 01:02:39,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 01:02:39,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 01:02:39,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-20 01:02:39,918 INFO L87 Difference]: Start difference. First operand 556 states and 801 transitions. Second operand has 5 states, 5 states have (on average 32.6) internal successors, (163), 5 states have internal predecessors, (163), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-20 01:02:40,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 01:02:40,096 INFO L93 Difference]: Finished difference Result 1010 states and 1450 transitions. [2024-11-20 01:02:40,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 01:02:40,097 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.6) internal successors, (163), 5 states have internal predecessors, (163), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 175 [2024-11-20 01:02:40,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 01:02:40,099 INFO L225 Difference]: With dead ends: 1010 [2024-11-20 01:02:40,099 INFO L226 Difference]: Without dead ends: 556 [2024-11-20 01:02:40,100 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-20 01:02:40,100 INFO L432 NwaCegarLoop]: 722 mSDtfsCounter, 1318 mSDsluCounter, 724 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1318 SdHoareTripleChecker+Valid, 1446 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 01:02:40,101 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1318 Valid, 1446 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 01:02:40,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2024-11-20 01:02:40,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 556. [2024-11-20 01:02:40,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 556 states, 551 states have (on average 1.441016333938294) internal successors, (794), 551 states have internal predecessors, (794), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-20 01:02:40,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 800 transitions. [2024-11-20 01:02:40,112 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 800 transitions. Word has length 175 [2024-11-20 01:02:40,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 01:02:40,112 INFO L471 AbstractCegarLoop]: Abstraction has 556 states and 800 transitions. [2024-11-20 01:02:40,113 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.6) internal successors, (163), 5 states have internal predecessors, (163), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-20 01:02:40,113 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 800 transitions. [2024-11-20 01:02:40,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-20 01:02:40,114 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 01:02:40,114 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:02:40,115 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-20 01:02:40,115 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 01:02:40,115 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 01:02:40,115 INFO L85 PathProgramCache]: Analyzing trace with hash 1292880851, now seen corresponding path program 1 times [2024-11-20 01:02:40,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 01:02:40,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445202457] [2024-11-20 01:02:40,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 01:02:40,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 01:02:40,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:40,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 01:02:40,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:40,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-20 01:02:40,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:40,559 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 01:02:40,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:40,560 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-20 01:02:40,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 01:02:40,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445202457] [2024-11-20 01:02:40,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1445202457] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 01:02:40,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 01:02:40,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 01:02:40,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026203884] [2024-11-20 01:02:40,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 01:02:40,562 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 01:02:40,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 01:02:40,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 01:02:40,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 01:02:40,563 INFO L87 Difference]: Start difference. First operand 556 states and 800 transitions. Second operand has 4 states, 4 states have (on average 41.0) internal successors, (164), 4 states have internal predecessors, (164), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-20 01:02:40,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 01:02:40,789 INFO L93 Difference]: Finished difference Result 1012 states and 1450 transitions. [2024-11-20 01:02:40,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 01:02:40,791 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.0) internal successors, (164), 4 states have internal predecessors, (164), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 176 [2024-11-20 01:02:40,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 01:02:40,793 INFO L225 Difference]: With dead ends: 1012 [2024-11-20 01:02:40,793 INFO L226 Difference]: Without dead ends: 556 [2024-11-20 01:02:40,794 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 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 01:02:40,795 INFO L432 NwaCegarLoop]: 788 mSDtfsCounter, 2 mSDsluCounter, 1386 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2174 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 01:02:40,795 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2174 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 01:02:40,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2024-11-20 01:02:40,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 556. [2024-11-20 01:02:40,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 556 states, 551 states have (on average 1.4392014519056262) internal successors, (793), 551 states have internal predecessors, (793), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-20 01:02:40,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 799 transitions. [2024-11-20 01:02:40,808 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 799 transitions. Word has length 176 [2024-11-20 01:02:40,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 01:02:40,809 INFO L471 AbstractCegarLoop]: Abstraction has 556 states and 799 transitions. [2024-11-20 01:02:40,809 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.0) internal successors, (164), 4 states have internal predecessors, (164), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-20 01:02:40,809 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 799 transitions. [2024-11-20 01:02:40,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-11-20 01:02:40,811 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 01:02:40,811 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:02:40,811 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-20 01:02:40,811 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 01:02:40,811 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 01:02:40,811 INFO L85 PathProgramCache]: Analyzing trace with hash 89470408, now seen corresponding path program 1 times [2024-11-20 01:02:40,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 01:02:40,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480495998] [2024-11-20 01:02:40,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 01:02:40,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 01:02:40,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:41,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 01:02:41,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:41,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-20 01:02:41,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:41,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 01:02:41,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:41,283 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-20 01:02:41,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 01:02:41,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480495998] [2024-11-20 01:02:41,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [480495998] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 01:02:41,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 01:02:41,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 01:02:41,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731494512] [2024-11-20 01:02:41,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 01:02:41,285 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 01:02:41,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 01:02:41,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 01:02:41,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-20 01:02:41,286 INFO L87 Difference]: Start difference. First operand 556 states and 799 transitions. Second operand has 5 states, 5 states have (on average 33.0) internal successors, (165), 5 states have internal predecessors, (165), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-20 01:02:41,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 01:02:41,472 INFO L93 Difference]: Finished difference Result 1010 states and 1446 transitions. [2024-11-20 01:02:41,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 01:02:41,473 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.0) internal successors, (165), 5 states have internal predecessors, (165), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 177 [2024-11-20 01:02:41,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 01:02:41,476 INFO L225 Difference]: With dead ends: 1010 [2024-11-20 01:02:41,476 INFO L226 Difference]: Without dead ends: 556 [2024-11-20 01:02:41,477 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-20 01:02:41,478 INFO L432 NwaCegarLoop]: 721 mSDtfsCounter, 660 mSDsluCounter, 730 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 660 SdHoareTripleChecker+Valid, 1451 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 01:02:41,478 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [660 Valid, 1451 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 01:02:41,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2024-11-20 01:02:41,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 556. [2024-11-20 01:02:41,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 556 states, 551 states have (on average 1.4373865698729582) internal successors, (792), 551 states have internal predecessors, (792), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-20 01:02:41,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 798 transitions. [2024-11-20 01:02:41,493 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 798 transitions. Word has length 177 [2024-11-20 01:02:41,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 01:02:41,494 INFO L471 AbstractCegarLoop]: Abstraction has 556 states and 798 transitions. [2024-11-20 01:02:41,494 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.0) internal successors, (165), 5 states have internal predecessors, (165), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-20 01:02:41,494 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 798 transitions. [2024-11-20 01:02:41,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-20 01:02:41,496 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 01:02:41,496 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:02:41,496 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-20 01:02:41,496 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 01:02:41,497 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 01:02:41,497 INFO L85 PathProgramCache]: Analyzing trace with hash 2004024685, now seen corresponding path program 1 times [2024-11-20 01:02:41,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 01:02:41,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359198120] [2024-11-20 01:02:41,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 01:02:41,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 01:02:41,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:42,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 01:02:42,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:42,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-20 01:02:42,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:42,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 01:02:42,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:42,051 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-20 01:02:42,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 01:02:42,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359198120] [2024-11-20 01:02:42,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359198120] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 01:02:42,053 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 01:02:42,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 01:02:42,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071166684] [2024-11-20 01:02:42,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 01:02:42,054 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 01:02:42,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 01:02:42,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 01:02:42,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 01:02:42,055 INFO L87 Difference]: Start difference. First operand 556 states and 798 transitions. Second operand has 4 states, 4 states have (on average 41.5) internal successors, (166), 4 states have internal predecessors, (166), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-20 01:02:42,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 01:02:42,189 INFO L93 Difference]: Finished difference Result 1010 states and 1444 transitions. [2024-11-20 01:02:42,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 01:02:42,190 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.5) internal successors, (166), 4 states have internal predecessors, (166), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 178 [2024-11-20 01:02:42,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 01:02:42,192 INFO L225 Difference]: With dead ends: 1010 [2024-11-20 01:02:42,192 INFO L226 Difference]: Without dead ends: 556 [2024-11-20 01:02:42,193 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-20 01:02:42,194 INFO L432 NwaCegarLoop]: 721 mSDtfsCounter, 644 mSDsluCounter, 723 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 644 SdHoareTripleChecker+Valid, 1444 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 01:02:42,195 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [644 Valid, 1444 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 01:02:42,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2024-11-20 01:02:42,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 556. [2024-11-20 01:02:42,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 556 states, 551 states have (on average 1.4355716878402904) internal successors, (791), 551 states have internal predecessors, (791), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-20 01:02:42,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 797 transitions. [2024-11-20 01:02:42,208 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 797 transitions. Word has length 178 [2024-11-20 01:02:42,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 01:02:42,208 INFO L471 AbstractCegarLoop]: Abstraction has 556 states and 797 transitions. [2024-11-20 01:02:42,209 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.5) internal successors, (166), 4 states have internal predecessors, (166), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-20 01:02:42,209 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 797 transitions. [2024-11-20 01:02:42,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-20 01:02:42,209 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 01:02:42,210 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:02:42,210 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-20 01:02:42,210 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 01:02:42,211 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 01:02:42,211 INFO L85 PathProgramCache]: Analyzing trace with hash 967624263, now seen corresponding path program 1 times [2024-11-20 01:02:42,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 01:02:42,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000431187] [2024-11-20 01:02:42,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 01:02:42,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 01:02:42,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:42,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 01:02:42,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:42,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-20 01:02:42,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:42,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 01:02:42,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:42,697 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-20 01:02:42,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 01:02:42,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000431187] [2024-11-20 01:02:42,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2000431187] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 01:02:42,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 01:02:42,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 01:02:42,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457235538] [2024-11-20 01:02:42,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 01:02:42,699 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 01:02:42,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 01:02:42,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 01:02:42,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-20 01:02:42,699 INFO L87 Difference]: Start difference. First operand 556 states and 797 transitions. Second operand has 5 states, 5 states have (on average 33.4) internal successors, (167), 5 states have internal predecessors, (167), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-20 01:02:42,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 01:02:42,870 INFO L93 Difference]: Finished difference Result 1010 states and 1442 transitions. [2024-11-20 01:02:42,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 01:02:42,871 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.4) internal successors, (167), 5 states have internal predecessors, (167), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 179 [2024-11-20 01:02:42,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 01:02:42,874 INFO L225 Difference]: With dead ends: 1010 [2024-11-20 01:02:42,874 INFO L226 Difference]: Without dead ends: 556 [2024-11-20 01:02:42,876 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-20 01:02:42,876 INFO L432 NwaCegarLoop]: 721 mSDtfsCounter, 1296 mSDsluCounter, 723 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1296 SdHoareTripleChecker+Valid, 1444 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 01:02:42,876 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1296 Valid, 1444 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 01:02:42,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2024-11-20 01:02:42,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 556. [2024-11-20 01:02:42,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 556 states, 551 states have (on average 1.4337568058076224) internal successors, (790), 551 states have internal predecessors, (790), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-20 01:02:42,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 796 transitions. [2024-11-20 01:02:42,891 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 796 transitions. Word has length 179 [2024-11-20 01:02:42,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 01:02:42,891 INFO L471 AbstractCegarLoop]: Abstraction has 556 states and 796 transitions. [2024-11-20 01:02:42,892 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.4) internal successors, (167), 5 states have internal predecessors, (167), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-20 01:02:42,892 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 796 transitions. [2024-11-20 01:02:42,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2024-11-20 01:02:42,893 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 01:02:42,893 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:02:42,893 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-20 01:02:42,893 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 01:02:42,893 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 01:02:42,894 INFO L85 PathProgramCache]: Analyzing trace with hash -242540242, now seen corresponding path program 1 times [2024-11-20 01:02:42,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 01:02:42,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869650086] [2024-11-20 01:02:42,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 01:02:42,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 01:02:43,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:43,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 01:02:43,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:43,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-20 01:02:43,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:43,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 01:02:43,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:43,502 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-20 01:02:43,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 01:02:43,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869650086] [2024-11-20 01:02:43,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869650086] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 01:02:43,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 01:02:43,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 01:02:43,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543135604] [2024-11-20 01:02:43,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 01:02:43,504 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 01:02:43,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 01:02:43,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 01:02:43,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-20 01:02:43,505 INFO L87 Difference]: Start difference. First operand 556 states and 796 transitions. Second operand has 5 states, 5 states have (on average 33.6) internal successors, (168), 5 states have internal predecessors, (168), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-20 01:02:43,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 01:02:43,694 INFO L93 Difference]: Finished difference Result 1010 states and 1440 transitions. [2024-11-20 01:02:43,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 01:02:43,695 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 5 states have internal predecessors, (168), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 180 [2024-11-20 01:02:43,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 01:02:43,698 INFO L225 Difference]: With dead ends: 1010 [2024-11-20 01:02:43,701 INFO L226 Difference]: Without dead ends: 556 [2024-11-20 01:02:43,703 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-20 01:02:43,703 INFO L432 NwaCegarLoop]: 721 mSDtfsCounter, 657 mSDsluCounter, 730 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 657 SdHoareTripleChecker+Valid, 1451 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 01:02:43,704 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [657 Valid, 1451 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 01:02:43,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2024-11-20 01:02:43,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 556. [2024-11-20 01:02:43,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 556 states, 551 states have (on average 1.4319419237749547) internal successors, (789), 551 states have internal predecessors, (789), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-20 01:02:43,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 795 transitions. [2024-11-20 01:02:43,721 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 795 transitions. Word has length 180 [2024-11-20 01:02:43,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 01:02:43,722 INFO L471 AbstractCegarLoop]: Abstraction has 556 states and 795 transitions. [2024-11-20 01:02:43,722 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 5 states have internal predecessors, (168), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-20 01:02:43,722 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 795 transitions. [2024-11-20 01:02:43,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-11-20 01:02:43,723 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 01:02:43,724 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:02:43,724 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-20 01:02:43,724 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 01:02:43,724 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 01:02:43,725 INFO L85 PathProgramCache]: Analyzing trace with hash -1196109242, now seen corresponding path program 1 times [2024-11-20 01:02:43,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 01:02:43,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418225914] [2024-11-20 01:02:43,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 01:02:43,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 01:02:43,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:44,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 01:02:44,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:44,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-20 01:02:44,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:44,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 01:02:44,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:44,713 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-20 01:02:44,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 01:02:44,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418225914] [2024-11-20 01:02:44,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418225914] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 01:02:44,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 01:02:44,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-20 01:02:44,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689715325] [2024-11-20 01:02:44,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 01:02:44,714 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 01:02:44,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 01:02:44,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 01:02:44,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-20 01:02:44,716 INFO L87 Difference]: Start difference. First operand 556 states and 795 transitions. Second operand has 6 states, 6 states have (on average 28.166666666666668) internal successors, (169), 6 states have internal predecessors, (169), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-20 01:02:44,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 01:02:44,838 INFO L93 Difference]: Finished difference Result 1165 states and 1640 transitions. [2024-11-20 01:02:44,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 01:02:44,839 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 28.166666666666668) internal successors, (169), 6 states have internal predecessors, (169), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 181 [2024-11-20 01:02:44,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 01:02:44,842 INFO L225 Difference]: With dead ends: 1165 [2024-11-20 01:02:44,842 INFO L226 Difference]: Without dead ends: 711 [2024-11-20 01:02:44,843 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-20 01:02:44,844 INFO L432 NwaCegarLoop]: 776 mSDtfsCounter, 1134 mSDsluCounter, 2322 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1137 SdHoareTripleChecker+Valid, 3098 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 01:02:44,844 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1137 Valid, 3098 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 01:02:44,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 711 states. [2024-11-20 01:02:44,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 711 to 711. [2024-11-20 01:02:44,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 711 states, 703 states have (on average 1.399715504978663) internal successors, (984), 703 states have internal predecessors, (984), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-20 01:02:44,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 711 states to 711 states and 996 transitions. [2024-11-20 01:02:44,869 INFO L78 Accepts]: Start accepts. Automaton has 711 states and 996 transitions. Word has length 181 [2024-11-20 01:02:44,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 01:02:44,869 INFO L471 AbstractCegarLoop]: Abstraction has 711 states and 996 transitions. [2024-11-20 01:02:44,869 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.166666666666668) internal successors, (169), 6 states have internal predecessors, (169), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-20 01:02:44,870 INFO L276 IsEmpty]: Start isEmpty. Operand 711 states and 996 transitions. [2024-11-20 01:02:44,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 449 [2024-11-20 01:02:44,875 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 01:02:44,875 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:02:44,876 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-20 01:02:44,876 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 01:02:44,876 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 01:02:44,876 INFO L85 PathProgramCache]: Analyzing trace with hash -1499686982, now seen corresponding path program 1 times [2024-11-20 01:02:44,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 01:02:44,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103490376] [2024-11-20 01:02:44,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 01:02:44,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 01:02:45,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:45,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 01:02:45,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:45,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-20 01:02:45,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:45,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 01:02:45,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:45,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2024-11-20 01:02:45,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:45,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2024-11-20 01:02:45,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:45,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2024-11-20 01:02:45,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:45,895 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-20 01:02:45,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 01:02:45,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103490376] [2024-11-20 01:02:45,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103490376] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 01:02:45,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 01:02:45,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 01:02:45,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238171370] [2024-11-20 01:02:45,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 01:02:45,897 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 01:02:45,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 01:02:45,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 01:02:45,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-20 01:02:45,899 INFO L87 Difference]: Start difference. First operand 711 states and 996 transitions. Second operand has 5 states, 5 states have (on average 84.2) internal successors, (421), 5 states have internal predecessors, (421), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-20 01:02:46,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 01:02:46,043 INFO L93 Difference]: Finished difference Result 1165 states and 1639 transitions. [2024-11-20 01:02:46,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 01:02:46,044 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 84.2) internal successors, (421), 5 states have internal predecessors, (421), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 448 [2024-11-20 01:02:46,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 01:02:46,046 INFO L225 Difference]: With dead ends: 1165 [2024-11-20 01:02:46,047 INFO L226 Difference]: Without dead ends: 711 [2024-11-20 01:02:46,047 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-20 01:02:46,048 INFO L432 NwaCegarLoop]: 721 mSDtfsCounter, 724 mSDsluCounter, 730 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 727 SdHoareTripleChecker+Valid, 1451 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 01:02:46,048 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [727 Valid, 1451 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 01:02:46,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 711 states. [2024-11-20 01:02:46,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 711 to 711. [2024-11-20 01:02:46,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 711 states, 703 states have (on average 1.3982930298719773) internal successors, (983), 703 states have internal predecessors, (983), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-20 01:02:46,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 711 states to 711 states and 995 transitions. [2024-11-20 01:02:46,066 INFO L78 Accepts]: Start accepts. Automaton has 711 states and 995 transitions. Word has length 448 [2024-11-20 01:02:46,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 01:02:46,066 INFO L471 AbstractCegarLoop]: Abstraction has 711 states and 995 transitions. [2024-11-20 01:02:46,067 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 84.2) internal successors, (421), 5 states have internal predecessors, (421), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-20 01:02:46,067 INFO L276 IsEmpty]: Start isEmpty. Operand 711 states and 995 transitions. [2024-11-20 01:02:46,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 450 [2024-11-20 01:02:46,070 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 01:02:46,070 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:02:46,070 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-20 01:02:46,071 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 01:02:46,071 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 01:02:46,071 INFO L85 PathProgramCache]: Analyzing trace with hash 1398521340, now seen corresponding path program 1 times [2024-11-20 01:02:46,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 01:02:46,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028523719] [2024-11-20 01:02:46,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 01:02:46,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 01:02:46,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:47,060 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 01:02:47,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:47,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-20 01:02:47,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:47,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 01:02:47,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:47,066 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2024-11-20 01:02:47,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:47,067 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2024-11-20 01:02:47,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:47,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 355 [2024-11-20 01:02:47,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:47,070 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-20 01:02:47,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 01:02:47,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028523719] [2024-11-20 01:02:47,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028523719] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 01:02:47,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 01:02:47,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 01:02:47,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184192866] [2024-11-20 01:02:47,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 01:02:47,072 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 01:02:47,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 01:02:47,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 01:02:47,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-20 01:02:47,073 INFO L87 Difference]: Start difference. First operand 711 states and 995 transitions. Second operand has 5 states, 5 states have (on average 84.4) internal successors, (422), 5 states have internal predecessors, (422), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-20 01:02:47,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 01:02:47,226 INFO L93 Difference]: Finished difference Result 1165 states and 1637 transitions. [2024-11-20 01:02:47,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 01:02:47,227 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 84.4) internal successors, (422), 5 states have internal predecessors, (422), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 449 [2024-11-20 01:02:47,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 01:02:47,230 INFO L225 Difference]: With dead ends: 1165 [2024-11-20 01:02:47,231 INFO L226 Difference]: Without dead ends: 711 [2024-11-20 01:02:47,232 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-20 01:02:47,233 INFO L432 NwaCegarLoop]: 721 mSDtfsCounter, 716 mSDsluCounter, 730 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 719 SdHoareTripleChecker+Valid, 1451 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 01:02:47,233 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [719 Valid, 1451 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 01:02:47,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 711 states. [2024-11-20 01:02:47,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 711 to 711. [2024-11-20 01:02:47,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 711 states, 703 states have (on average 1.3968705547652915) internal successors, (982), 703 states have internal predecessors, (982), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-20 01:02:47,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 711 states to 711 states and 994 transitions. [2024-11-20 01:02:47,252 INFO L78 Accepts]: Start accepts. Automaton has 711 states and 994 transitions. Word has length 449 [2024-11-20 01:02:47,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 01:02:47,253 INFO L471 AbstractCegarLoop]: Abstraction has 711 states and 994 transitions. [2024-11-20 01:02:47,253 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 84.4) internal successors, (422), 5 states have internal predecessors, (422), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-20 01:02:47,254 INFO L276 IsEmpty]: Start isEmpty. Operand 711 states and 994 transitions. [2024-11-20 01:02:47,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 451 [2024-11-20 01:02:47,258 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 01:02:47,259 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:02:47,259 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-20 01:02:47,259 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 01:02:47,260 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 01:02:47,260 INFO L85 PathProgramCache]: Analyzing trace with hash 1067649967, now seen corresponding path program 1 times [2024-11-20 01:02:47,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 01:02:47,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889372554] [2024-11-20 01:02:47,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 01:02:47,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 01:02:47,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:48,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 01:02:48,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:48,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-20 01:02:48,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:48,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 01:02:48,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:48,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2024-11-20 01:02:48,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:48,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2024-11-20 01:02:48,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:48,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 356 [2024-11-20 01:02:48,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:48,156 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-20 01:02:48,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 01:02:48,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889372554] [2024-11-20 01:02:48,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1889372554] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 01:02:48,157 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 01:02:48,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 01:02:48,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156736376] [2024-11-20 01:02:48,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 01:02:48,158 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 01:02:48,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 01:02:48,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 01:02:48,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-20 01:02:48,159 INFO L87 Difference]: Start difference. First operand 711 states and 994 transitions. Second operand has 5 states, 5 states have (on average 84.6) internal successors, (423), 5 states have internal predecessors, (423), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-20 01:02:48,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 01:02:48,307 INFO L93 Difference]: Finished difference Result 1165 states and 1635 transitions. [2024-11-20 01:02:48,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 01:02:48,308 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 84.6) internal successors, (423), 5 states have internal predecessors, (423), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 450 [2024-11-20 01:02:48,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 01:02:48,311 INFO L225 Difference]: With dead ends: 1165 [2024-11-20 01:02:48,311 INFO L226 Difference]: Without dead ends: 711 [2024-11-20 01:02:48,312 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-20 01:02:48,313 INFO L432 NwaCegarLoop]: 721 mSDtfsCounter, 1293 mSDsluCounter, 723 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1296 SdHoareTripleChecker+Valid, 1444 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 01:02:48,314 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1296 Valid, 1444 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 01:02:48,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 711 states. [2024-11-20 01:02:48,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 711 to 711. [2024-11-20 01:02:48,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 711 states, 703 states have (on average 1.395448079658606) internal successors, (981), 703 states have internal predecessors, (981), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-20 01:02:48,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 711 states to 711 states and 993 transitions. [2024-11-20 01:02:48,333 INFO L78 Accepts]: Start accepts. Automaton has 711 states and 993 transitions. Word has length 450 [2024-11-20 01:02:48,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 01:02:48,333 INFO L471 AbstractCegarLoop]: Abstraction has 711 states and 993 transitions. [2024-11-20 01:02:48,333 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 84.6) internal successors, (423), 5 states have internal predecessors, (423), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-20 01:02:48,334 INFO L276 IsEmpty]: Start isEmpty. Operand 711 states and 993 transitions. [2024-11-20 01:02:48,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 452 [2024-11-20 01:02:48,336 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 01:02:48,336 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:02:48,337 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-11-20 01:02:48,337 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 01:02:48,337 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 01:02:48,337 INFO L85 PathProgramCache]: Analyzing trace with hash -1809101871, now seen corresponding path program 1 times [2024-11-20 01:02:48,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 01:02:48,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854611030] [2024-11-20 01:02:48,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 01:02:48,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 01:02:48,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:49,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 01:02:49,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:49,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-20 01:02:49,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:49,333 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 01:02:49,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:49,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2024-11-20 01:02:49,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:49,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 345 [2024-11-20 01:02:49,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:49,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 357 [2024-11-20 01:02:49,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:49,338 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-20 01:02:49,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 01:02:49,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854611030] [2024-11-20 01:02:49,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1854611030] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 01:02:49,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 01:02:49,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 01:02:49,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930272829] [2024-11-20 01:02:49,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 01:02:49,341 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 01:02:49,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 01:02:49,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 01:02:49,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-20 01:02:49,343 INFO L87 Difference]: Start difference. First operand 711 states and 993 transitions. Second operand has 5 states, 5 states have (on average 84.8) internal successors, (424), 5 states have internal predecessors, (424), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-20 01:02:49,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 01:02:49,477 INFO L93 Difference]: Finished difference Result 1165 states and 1633 transitions. [2024-11-20 01:02:49,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 01:02:49,478 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 84.8) internal successors, (424), 5 states have internal predecessors, (424), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 451 [2024-11-20 01:02:49,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 01:02:49,481 INFO L225 Difference]: With dead ends: 1165 [2024-11-20 01:02:49,481 INFO L226 Difference]: Without dead ends: 711 [2024-11-20 01:02:49,482 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-20 01:02:49,483 INFO L432 NwaCegarLoop]: 721 mSDtfsCounter, 1277 mSDsluCounter, 723 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1280 SdHoareTripleChecker+Valid, 1444 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 01:02:49,483 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1280 Valid, 1444 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 01:02:49,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 711 states. [2024-11-20 01:02:49,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 711 to 711. [2024-11-20 01:02:49,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 711 states, 703 states have (on average 1.3940256045519204) internal successors, (980), 703 states have internal predecessors, (980), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-20 01:02:49,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 711 states to 711 states and 992 transitions. [2024-11-20 01:02:49,503 INFO L78 Accepts]: Start accepts. Automaton has 711 states and 992 transitions. Word has length 451 [2024-11-20 01:02:49,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 01:02:49,503 INFO L471 AbstractCegarLoop]: Abstraction has 711 states and 992 transitions. [2024-11-20 01:02:49,504 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 84.8) internal successors, (424), 5 states have internal predecessors, (424), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-20 01:02:49,504 INFO L276 IsEmpty]: Start isEmpty. Operand 711 states and 992 transitions. [2024-11-20 01:02:49,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 453 [2024-11-20 01:02:49,507 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 01:02:49,508 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:02:49,508 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-11-20 01:02:49,508 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 01:02:49,508 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 01:02:49,508 INFO L85 PathProgramCache]: Analyzing trace with hash 30466852, now seen corresponding path program 1 times [2024-11-20 01:02:49,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 01:02:49,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309215873] [2024-11-20 01:02:49,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 01:02:49,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 01:02:49,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:50,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 01:02:50,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:50,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-20 01:02:50,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:50,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 01:02:50,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:50,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2024-11-20 01:02:50,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:50,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2024-11-20 01:02:50,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:50,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2024-11-20 01:02:50,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:50,482 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-20 01:02:50,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 01:02:50,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309215873] [2024-11-20 01:02:50,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309215873] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 01:02:50,483 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 01:02:50,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 01:02:50,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952226240] [2024-11-20 01:02:50,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 01:02:50,485 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 01:02:50,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 01:02:50,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 01:02:50,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-20 01:02:50,486 INFO L87 Difference]: Start difference. First operand 711 states and 992 transitions. Second operand has 5 states, 5 states have (on average 85.0) internal successors, (425), 5 states have internal predecessors, (425), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-20 01:02:50,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 01:02:50,656 INFO L93 Difference]: Finished difference Result 1165 states and 1631 transitions. [2024-11-20 01:02:50,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 01:02:50,657 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 85.0) internal successors, (425), 5 states have internal predecessors, (425), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 452 [2024-11-20 01:02:50,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 01:02:50,660 INFO L225 Difference]: With dead ends: 1165 [2024-11-20 01:02:50,660 INFO L226 Difference]: Without dead ends: 711 [2024-11-20 01:02:50,661 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-20 01:02:50,662 INFO L432 NwaCegarLoop]: 721 mSDtfsCounter, 692 mSDsluCounter, 730 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 695 SdHoareTripleChecker+Valid, 1451 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 01:02:50,663 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [695 Valid, 1451 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 01:02:50,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 711 states. [2024-11-20 01:02:50,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 711 to 711. [2024-11-20 01:02:50,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 711 states, 703 states have (on average 1.3926031294452348) internal successors, (979), 703 states have internal predecessors, (979), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-20 01:02:50,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 711 states to 711 states and 991 transitions. [2024-11-20 01:02:50,688 INFO L78 Accepts]: Start accepts. Automaton has 711 states and 991 transitions. Word has length 452 [2024-11-20 01:02:50,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 01:02:50,689 INFO L471 AbstractCegarLoop]: Abstraction has 711 states and 991 transitions. [2024-11-20 01:02:50,689 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 85.0) internal successors, (425), 5 states have internal predecessors, (425), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-20 01:02:50,690 INFO L276 IsEmpty]: Start isEmpty. Operand 711 states and 991 transitions. [2024-11-20 01:02:50,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 454 [2024-11-20 01:02:50,694 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 01:02:50,695 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:02:50,695 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-11-20 01:02:50,696 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 01:02:50,697 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 01:02:50,697 INFO L85 PathProgramCache]: Analyzing trace with hash -220474074, now seen corresponding path program 1 times [2024-11-20 01:02:50,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 01:02:50,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133758816] [2024-11-20 01:02:50,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 01:02:50,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 01:02:51,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:51,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 01:02:51,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:51,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-20 01:02:51,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:51,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 01:02:51,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:51,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 331 [2024-11-20 01:02:51,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:51,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2024-11-20 01:02:51,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:51,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2024-11-20 01:02:51,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:51,789 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-20 01:02:51,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 01:02:51,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133758816] [2024-11-20 01:02:51,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2133758816] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 01:02:51,789 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 01:02:51,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 01:02:51,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898415141] [2024-11-20 01:02:51,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 01:02:51,790 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 01:02:51,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 01:02:51,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 01:02:51,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-20 01:02:51,791 INFO L87 Difference]: Start difference. First operand 711 states and 991 transitions. Second operand has 5 states, 5 states have (on average 85.2) internal successors, (426), 5 states have internal predecessors, (426), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-20 01:02:51,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 01:02:51,933 INFO L93 Difference]: Finished difference Result 1165 states and 1629 transitions. [2024-11-20 01:02:51,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 01:02:51,934 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 85.2) internal successors, (426), 5 states have internal predecessors, (426), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 453 [2024-11-20 01:02:51,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 01:02:51,937 INFO L225 Difference]: With dead ends: 1165 [2024-11-20 01:02:51,937 INFO L226 Difference]: Without dead ends: 711 [2024-11-20 01:02:51,938 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-20 01:02:51,939 INFO L432 NwaCegarLoop]: 721 mSDtfsCounter, 684 mSDsluCounter, 730 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 687 SdHoareTripleChecker+Valid, 1451 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 01:02:51,939 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [687 Valid, 1451 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 01:02:51,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 711 states. [2024-11-20 01:02:51,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 711 to 711. [2024-11-20 01:02:51,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 711 states, 703 states have (on average 1.391180654338549) internal successors, (978), 703 states have internal predecessors, (978), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-20 01:02:51,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 711 states to 711 states and 990 transitions. [2024-11-20 01:02:51,955 INFO L78 Accepts]: Start accepts. Automaton has 711 states and 990 transitions. Word has length 453 [2024-11-20 01:02:51,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 01:02:51,956 INFO L471 AbstractCegarLoop]: Abstraction has 711 states and 990 transitions. [2024-11-20 01:02:51,956 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 85.2) internal successors, (426), 5 states have internal predecessors, (426), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-20 01:02:51,956 INFO L276 IsEmpty]: Start isEmpty. Operand 711 states and 990 transitions. [2024-11-20 01:02:51,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 455 [2024-11-20 01:02:51,959 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 01:02:51,959 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:02:51,959 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-11-20 01:02:51,959 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 01:02:51,960 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 01:02:51,960 INFO L85 PathProgramCache]: Analyzing trace with hash -2017960423, now seen corresponding path program 1 times [2024-11-20 01:02:51,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 01:02:51,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093383275] [2024-11-20 01:02:51,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 01:02:51,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 01:02:52,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:52,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 01:02:52,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:52,800 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-20 01:02:52,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:52,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 01:02:52,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:52,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2024-11-20 01:02:52,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:52,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2024-11-20 01:02:52,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:52,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2024-11-20 01:02:52,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:52,807 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-20 01:02:52,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 01:02:52,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093383275] [2024-11-20 01:02:52,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2093383275] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 01:02:52,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 01:02:52,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 01:02:52,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632269931] [2024-11-20 01:02:52,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 01:02:52,808 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 01:02:52,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 01:02:52,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 01:02:52,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-20 01:02:52,809 INFO L87 Difference]: Start difference. First operand 711 states and 990 transitions. Second operand has 5 states, 5 states have (on average 85.4) internal successors, (427), 5 states have internal predecessors, (427), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-20 01:02:52,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 01:02:52,972 INFO L93 Difference]: Finished difference Result 1165 states and 1627 transitions. [2024-11-20 01:02:52,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 01:02:52,973 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 85.4) internal successors, (427), 5 states have internal predecessors, (427), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 454 [2024-11-20 01:02:52,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 01:02:52,976 INFO L225 Difference]: With dead ends: 1165 [2024-11-20 01:02:52,976 INFO L226 Difference]: Without dead ends: 711 [2024-11-20 01:02:52,977 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-20 01:02:52,977 INFO L432 NwaCegarLoop]: 721 mSDtfsCounter, 1229 mSDsluCounter, 723 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1232 SdHoareTripleChecker+Valid, 1444 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 01:02:52,977 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1232 Valid, 1444 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 01:02:52,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 711 states. [2024-11-20 01:02:52,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 711 to 711. [2024-11-20 01:02:52,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 711 states, 703 states have (on average 1.3897581792318634) internal successors, (977), 703 states have internal predecessors, (977), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-20 01:02:52,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 711 states to 711 states and 989 transitions. [2024-11-20 01:02:52,997 INFO L78 Accepts]: Start accepts. Automaton has 711 states and 989 transitions. Word has length 454 [2024-11-20 01:02:52,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 01:02:52,997 INFO L471 AbstractCegarLoop]: Abstraction has 711 states and 989 transitions. [2024-11-20 01:02:52,997 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 85.4) internal successors, (427), 5 states have internal predecessors, (427), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-20 01:02:52,997 INFO L276 IsEmpty]: Start isEmpty. Operand 711 states and 989 transitions. [2024-11-20 01:02:53,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 456 [2024-11-20 01:02:53,000 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 01:02:53,000 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:02:53,000 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-11-20 01:02:53,000 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 01:02:53,001 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 01:02:53,001 INFO L85 PathProgramCache]: Analyzing trace with hash -162424325, now seen corresponding path program 1 times [2024-11-20 01:02:53,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 01:02:53,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076429566] [2024-11-20 01:02:53,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 01:02:53,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 01:02:53,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:53,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 01:02:53,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:53,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-20 01:02:53,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:53,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 01:02:53,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:53,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 333 [2024-11-20 01:02:53,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:53,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 349 [2024-11-20 01:02:53,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:53,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 361 [2024-11-20 01:02:53,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:53,792 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-20 01:02:53,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 01:02:53,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076429566] [2024-11-20 01:02:53,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076429566] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 01:02:53,792 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 01:02:53,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 01:02:53,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430405060] [2024-11-20 01:02:53,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 01:02:53,793 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 01:02:53,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 01:02:53,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 01:02:53,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-20 01:02:53,795 INFO L87 Difference]: Start difference. First operand 711 states and 989 transitions. Second operand has 5 states, 5 states have (on average 85.6) internal successors, (428), 5 states have internal predecessors, (428), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-20 01:02:53,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 01:02:53,907 INFO L93 Difference]: Finished difference Result 1165 states and 1625 transitions. [2024-11-20 01:02:53,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 01:02:53,911 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 85.6) internal successors, (428), 5 states have internal predecessors, (428), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 455 [2024-11-20 01:02:53,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 01:02:53,913 INFO L225 Difference]: With dead ends: 1165 [2024-11-20 01:02:53,914 INFO L226 Difference]: Without dead ends: 711 [2024-11-20 01:02:53,915 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-20 01:02:53,915 INFO L432 NwaCegarLoop]: 721 mSDtfsCounter, 668 mSDsluCounter, 730 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 671 SdHoareTripleChecker+Valid, 1451 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 01:02:53,915 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [671 Valid, 1451 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 01:02:53,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 711 states. [2024-11-20 01:02:53,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 711 to 711. [2024-11-20 01:02:53,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 711 states, 703 states have (on average 1.3883357041251778) internal successors, (976), 703 states have internal predecessors, (976), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-20 01:02:53,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 711 states to 711 states and 988 transitions. [2024-11-20 01:02:53,933 INFO L78 Accepts]: Start accepts. Automaton has 711 states and 988 transitions. Word has length 455 [2024-11-20 01:02:53,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 01:02:53,933 INFO L471 AbstractCegarLoop]: Abstraction has 711 states and 988 transitions. [2024-11-20 01:02:53,933 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 85.6) internal successors, (428), 5 states have internal predecessors, (428), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-20 01:02:53,933 INFO L276 IsEmpty]: Start isEmpty. Operand 711 states and 988 transitions. [2024-11-20 01:02:53,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 457 [2024-11-20 01:02:53,936 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 01:02:53,936 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:02:53,936 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-11-20 01:02:53,936 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 01:02:53,937 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 01:02:53,937 INFO L85 PathProgramCache]: Analyzing trace with hash -1693729650, now seen corresponding path program 1 times [2024-11-20 01:02:53,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 01:02:53,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819879693] [2024-11-20 01:02:53,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 01:02:53,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 01:02:54,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:54,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 01:02:54,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:54,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-20 01:02:54,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:54,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 01:02:54,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:54,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2024-11-20 01:02:54,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:54,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2024-11-20 01:02:54,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:54,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2024-11-20 01:02:54,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:54,761 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-20 01:02:54,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 01:02:54,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819879693] [2024-11-20 01:02:54,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1819879693] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 01:02:54,762 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 01:02:54,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 01:02:54,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462209106] [2024-11-20 01:02:54,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 01:02:54,763 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 01:02:54,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 01:02:54,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 01:02:54,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-20 01:02:54,765 INFO L87 Difference]: Start difference. First operand 711 states and 988 transitions. Second operand has 5 states, 5 states have (on average 85.8) internal successors, (429), 5 states have internal predecessors, (429), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-20 01:02:54,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 01:02:54,858 INFO L93 Difference]: Finished difference Result 1165 states and 1623 transitions. [2024-11-20 01:02:54,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 01:02:54,859 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 85.8) internal successors, (429), 5 states have internal predecessors, (429), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 456 [2024-11-20 01:02:54,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 01:02:54,866 INFO L225 Difference]: With dead ends: 1165 [2024-11-20 01:02:54,867 INFO L226 Difference]: Without dead ends: 711 [2024-11-20 01:02:54,867 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-20 01:02:54,868 INFO L432 NwaCegarLoop]: 745 mSDtfsCounter, 645 mSDsluCounter, 754 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 648 SdHoareTripleChecker+Valid, 1499 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 01:02:54,868 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [648 Valid, 1499 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 01:02:54,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 711 states. [2024-11-20 01:02:54,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 711 to 711. [2024-11-20 01:02:54,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 711 states, 703 states have (on average 1.3869132290184922) internal successors, (975), 703 states have internal predecessors, (975), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-20 01:02:54,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 711 states to 711 states and 987 transitions. [2024-11-20 01:02:54,891 INFO L78 Accepts]: Start accepts. Automaton has 711 states and 987 transitions. Word has length 456 [2024-11-20 01:02:54,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 01:02:54,892 INFO L471 AbstractCegarLoop]: Abstraction has 711 states and 987 transitions. [2024-11-20 01:02:54,893 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 85.8) internal successors, (429), 5 states have internal predecessors, (429), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-20 01:02:54,893 INFO L276 IsEmpty]: Start isEmpty. Operand 711 states and 987 transitions. [2024-11-20 01:02:54,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 458 [2024-11-20 01:02:54,895 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 01:02:54,896 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:02:54,896 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2024-11-20 01:02:54,896 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 01:02:54,897 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 01:02:54,897 INFO L85 PathProgramCache]: Analyzing trace with hash 1276172880, now seen corresponding path program 1 times [2024-11-20 01:02:54,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 01:02:54,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010604354] [2024-11-20 01:02:54,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 01:02:54,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 01:02:55,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:55,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 01:02:55,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:55,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-20 01:02:55,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:55,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 01:02:55,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:55,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2024-11-20 01:02:55,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:55,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2024-11-20 01:02:55,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:55,705 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2024-11-20 01:02:55,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:55,707 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-20 01:02:55,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 01:02:55,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010604354] [2024-11-20 01:02:55,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010604354] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 01:02:55,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 01:02:55,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 01:02:55,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79883799] [2024-11-20 01:02:55,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 01:02:55,709 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 01:02:55,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 01:02:55,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 01:02:55,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-20 01:02:55,710 INFO L87 Difference]: Start difference. First operand 711 states and 987 transitions. Second operand has 5 states, 5 states have (on average 86.0) internal successors, (430), 5 states have internal predecessors, (430), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-20 01:02:55,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 01:02:55,803 INFO L93 Difference]: Finished difference Result 1165 states and 1621 transitions. [2024-11-20 01:02:55,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 01:02:55,804 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 86.0) internal successors, (430), 5 states have internal predecessors, (430), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 457 [2024-11-20 01:02:55,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 01:02:55,811 INFO L225 Difference]: With dead ends: 1165 [2024-11-20 01:02:55,815 INFO L226 Difference]: Without dead ends: 711 [2024-11-20 01:02:55,816 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-20 01:02:55,816 INFO L432 NwaCegarLoop]: 745 mSDtfsCounter, 1166 mSDsluCounter, 747 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1169 SdHoareTripleChecker+Valid, 1492 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 01:02:55,817 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1169 Valid, 1492 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 01:02:55,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 711 states. [2024-11-20 01:02:55,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 711 to 711. [2024-11-20 01:02:55,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 711 states, 703 states have (on average 1.3854907539118066) internal successors, (974), 703 states have internal predecessors, (974), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-20 01:02:55,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 711 states to 711 states and 986 transitions. [2024-11-20 01:02:55,834 INFO L78 Accepts]: Start accepts. Automaton has 711 states and 986 transitions. Word has length 457 [2024-11-20 01:02:55,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 01:02:55,835 INFO L471 AbstractCegarLoop]: Abstraction has 711 states and 986 transitions. [2024-11-20 01:02:55,835 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 86.0) internal successors, (430), 5 states have internal predecessors, (430), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-20 01:02:55,835 INFO L276 IsEmpty]: Start isEmpty. Operand 711 states and 986 transitions. [2024-11-20 01:02:55,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 459 [2024-11-20 01:02:55,837 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 01:02:55,838 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:02:55,838 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2024-11-20 01:02:55,839 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 01:02:55,839 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 01:02:55,839 INFO L85 PathProgramCache]: Analyzing trace with hash 1956462211, now seen corresponding path program 1 times [2024-11-20 01:02:55,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 01:02:55,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742261572] [2024-11-20 01:02:55,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 01:02:55,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 01:02:56,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:56,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 01:02:56,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:56,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-20 01:02:56,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:56,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 01:02:56,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:56,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2024-11-20 01:02:56,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:56,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2024-11-20 01:02:56,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:56,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 364 [2024-11-20 01:02:56,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:56,673 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-20 01:02:56,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 01:02:56,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742261572] [2024-11-20 01:02:56,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1742261572] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 01:02:56,674 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 01:02:56,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 01:02:56,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815249852] [2024-11-20 01:02:56,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 01:02:56,674 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 01:02:56,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 01:02:56,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 01:02:56,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-20 01:02:56,679 INFO L87 Difference]: Start difference. First operand 711 states and 986 transitions. Second operand has 5 states, 5 states have (on average 86.2) internal successors, (431), 5 states have internal predecessors, (431), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-20 01:02:56,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 01:02:56,774 INFO L93 Difference]: Finished difference Result 1165 states and 1619 transitions. [2024-11-20 01:02:56,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 01:02:56,775 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 86.2) internal successors, (431), 5 states have internal predecessors, (431), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 458 [2024-11-20 01:02:56,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 01:02:56,778 INFO L225 Difference]: With dead ends: 1165 [2024-11-20 01:02:56,778 INFO L226 Difference]: Without dead ends: 711 [2024-11-20 01:02:56,783 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-20 01:02:56,784 INFO L432 NwaCegarLoop]: 745 mSDtfsCounter, 1150 mSDsluCounter, 747 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1153 SdHoareTripleChecker+Valid, 1492 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 01:02:56,784 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1153 Valid, 1492 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 01:02:56,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 711 states. [2024-11-20 01:02:56,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 711 to 711. [2024-11-20 01:02:56,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 711 states, 703 states have (on average 1.3840682788051208) internal successors, (973), 703 states have internal predecessors, (973), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-20 01:02:56,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 711 states to 711 states and 985 transitions. [2024-11-20 01:02:56,801 INFO L78 Accepts]: Start accepts. Automaton has 711 states and 985 transitions. Word has length 458 [2024-11-20 01:02:56,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 01:02:56,802 INFO L471 AbstractCegarLoop]: Abstraction has 711 states and 985 transitions. [2024-11-20 01:02:56,802 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 86.2) internal successors, (431), 5 states have internal predecessors, (431), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-20 01:02:56,802 INFO L276 IsEmpty]: Start isEmpty. Operand 711 states and 985 transitions. [2024-11-20 01:02:56,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 460 [2024-11-20 01:02:56,805 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 01:02:56,806 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:02:56,806 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2024-11-20 01:02:56,806 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 01:02:56,806 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 01:02:56,806 INFO L85 PathProgramCache]: Analyzing trace with hash 675141157, now seen corresponding path program 1 times [2024-11-20 01:02:56,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 01:02:56,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909640238] [2024-11-20 01:02:56,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 01:02:56,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 01:02:57,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:57,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 01:02:57,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:57,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-20 01:02:57,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:57,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 01:02:57,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:57,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2024-11-20 01:02:57,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:57,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2024-11-20 01:02:57,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:57,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 365 [2024-11-20 01:02:57,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:57,676 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-20 01:02:57,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 01:02:57,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909640238] [2024-11-20 01:02:57,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1909640238] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 01:02:57,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 01:02:57,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 01:02:57,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299436275] [2024-11-20 01:02:57,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 01:02:57,678 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 01:02:57,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 01:02:57,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 01:02:57,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-20 01:02:57,679 INFO L87 Difference]: Start difference. First operand 711 states and 985 transitions. Second operand has 5 states, 5 states have (on average 86.4) internal successors, (432), 5 states have internal predecessors, (432), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-20 01:02:57,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 01:02:57,767 INFO L93 Difference]: Finished difference Result 1165 states and 1617 transitions. [2024-11-20 01:02:57,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 01:02:57,767 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 86.4) internal successors, (432), 5 states have internal predecessors, (432), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 459 [2024-11-20 01:02:57,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 01:02:57,772 INFO L225 Difference]: With dead ends: 1165 [2024-11-20 01:02:57,772 INFO L226 Difference]: Without dead ends: 711 [2024-11-20 01:02:57,773 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-20 01:02:57,774 INFO L432 NwaCegarLoop]: 745 mSDtfsCounter, 621 mSDsluCounter, 754 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 624 SdHoareTripleChecker+Valid, 1499 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 01:02:57,774 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [624 Valid, 1499 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 01:02:57,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 711 states. [2024-11-20 01:02:57,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 711 to 711. [2024-11-20 01:02:57,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 711 states, 703 states have (on average 1.3826458036984353) internal successors, (972), 703 states have internal predecessors, (972), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-20 01:02:57,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 711 states to 711 states and 984 transitions. [2024-11-20 01:02:57,792 INFO L78 Accepts]: Start accepts. Automaton has 711 states and 984 transitions. Word has length 459 [2024-11-20 01:02:57,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 01:02:57,793 INFO L471 AbstractCegarLoop]: Abstraction has 711 states and 984 transitions. [2024-11-20 01:02:57,793 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 86.4) internal successors, (432), 5 states have internal predecessors, (432), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-20 01:02:57,793 INFO L276 IsEmpty]: Start isEmpty. Operand 711 states and 984 transitions. [2024-11-20 01:02:57,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 461 [2024-11-20 01:02:57,796 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 01:02:57,796 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:02:57,796 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2024-11-20 01:02:57,797 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 01:02:57,797 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 01:02:57,797 INFO L85 PathProgramCache]: Analyzing trace with hash -60873736, now seen corresponding path program 1 times [2024-11-20 01:02:57,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 01:02:57,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987193702] [2024-11-20 01:02:57,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 01:02:57,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 01:02:58,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:58,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 01:02:58,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:58,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-20 01:02:58,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:58,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 01:02:58,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:58,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2024-11-20 01:02:58,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:58,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2024-11-20 01:02:58,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:58,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2024-11-20 01:02:58,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:58,574 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-20 01:02:58,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 01:02:58,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987193702] [2024-11-20 01:02:58,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1987193702] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 01:02:58,575 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 01:02:58,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 01:02:58,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507139846] [2024-11-20 01:02:58,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 01:02:58,576 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 01:02:58,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 01:02:58,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 01:02:58,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-20 01:02:58,577 INFO L87 Difference]: Start difference. First operand 711 states and 984 transitions. Second operand has 5 states, 5 states have (on average 86.6) internal successors, (433), 5 states have internal predecessors, (433), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-20 01:02:58,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 01:02:58,641 INFO L93 Difference]: Finished difference Result 1165 states and 1615 transitions. [2024-11-20 01:02:58,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 01:02:58,642 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 86.6) internal successors, (433), 5 states have internal predecessors, (433), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 460 [2024-11-20 01:02:58,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 01:02:58,644 INFO L225 Difference]: With dead ends: 1165 [2024-11-20 01:02:58,644 INFO L226 Difference]: Without dead ends: 711 [2024-11-20 01:02:58,645 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-20 01:02:58,645 INFO L432 NwaCegarLoop]: 757 mSDtfsCounter, 1111 mSDsluCounter, 759 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1114 SdHoareTripleChecker+Valid, 1516 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 01:02:58,645 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1114 Valid, 1516 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 01:02:58,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 711 states. [2024-11-20 01:02:58,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 711 to 711. [2024-11-20 01:02:58,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 711 states, 703 states have (on average 1.3812233285917497) internal successors, (971), 703 states have internal predecessors, (971), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-20 01:02:58,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 711 states to 711 states and 983 transitions. [2024-11-20 01:02:58,661 INFO L78 Accepts]: Start accepts. Automaton has 711 states and 983 transitions. Word has length 460 [2024-11-20 01:02:58,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 01:02:58,661 INFO L471 AbstractCegarLoop]: Abstraction has 711 states and 983 transitions. [2024-11-20 01:02:58,662 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 86.6) internal successors, (433), 5 states have internal predecessors, (433), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-20 01:02:58,662 INFO L276 IsEmpty]: Start isEmpty. Operand 711 states and 983 transitions. [2024-11-20 01:02:58,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 462 [2024-11-20 01:02:58,664 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 01:02:58,664 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:02:58,665 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2024-11-20 01:02:58,665 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 01:02:58,666 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 01:02:58,667 INFO L85 PathProgramCache]: Analyzing trace with hash -1516450438, now seen corresponding path program 1 times [2024-11-20 01:02:58,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 01:02:58,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234675574] [2024-11-20 01:02:58,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 01:02:58,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 01:02:58,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:59,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 01:02:59,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:59,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-20 01:02:59,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:59,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 01:02:59,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:59,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 339 [2024-11-20 01:02:59,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:59,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 355 [2024-11-20 01:02:59,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:59,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2024-11-20 01:02:59,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:02:59,483 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-20 01:02:59,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 01:02:59,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [234675574] [2024-11-20 01:02:59,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [234675574] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 01:02:59,483 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 01:02:59,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 01:02:59,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135405033] [2024-11-20 01:02:59,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 01:02:59,485 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 01:02:59,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 01:02:59,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 01:02:59,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-20 01:02:59,486 INFO L87 Difference]: Start difference. First operand 711 states and 983 transitions. Second operand has 5 states, 5 states have (on average 86.8) internal successors, (434), 5 states have internal predecessors, (434), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-20 01:02:59,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 01:02:59,567 INFO L93 Difference]: Finished difference Result 1165 states and 1613 transitions. [2024-11-20 01:02:59,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 01:02:59,568 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 86.8) internal successors, (434), 5 states have internal predecessors, (434), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 461 [2024-11-20 01:02:59,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 01:02:59,574 INFO L225 Difference]: With dead ends: 1165 [2024-11-20 01:02:59,574 INFO L226 Difference]: Without dead ends: 711 [2024-11-20 01:02:59,575 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-20 01:02:59,575 INFO L432 NwaCegarLoop]: 757 mSDtfsCounter, 598 mSDsluCounter, 766 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 601 SdHoareTripleChecker+Valid, 1523 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 01:02:59,575 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [601 Valid, 1523 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 01:02:59,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 711 states. [2024-11-20 01:02:59,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 711 to 711. [2024-11-20 01:02:59,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 711 states, 703 states have (on average 1.379800853485064) internal successors, (970), 703 states have internal predecessors, (970), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-20 01:02:59,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 711 states to 711 states and 982 transitions. [2024-11-20 01:02:59,592 INFO L78 Accepts]: Start accepts. Automaton has 711 states and 982 transitions. Word has length 461 [2024-11-20 01:02:59,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 01:02:59,593 INFO L471 AbstractCegarLoop]: Abstraction has 711 states and 982 transitions. [2024-11-20 01:02:59,593 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 86.8) internal successors, (434), 5 states have internal predecessors, (434), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-20 01:02:59,593 INFO L276 IsEmpty]: Start isEmpty. Operand 711 states and 982 transitions. [2024-11-20 01:02:59,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 463 [2024-11-20 01:02:59,596 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 01:02:59,596 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:02:59,596 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2024-11-20 01:02:59,596 INFO L396 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 01:02:59,597 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 01:02:59,597 INFO L85 PathProgramCache]: Analyzing trace with hash 157527277, now seen corresponding path program 1 times [2024-11-20 01:02:59,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 01:02:59,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092089758] [2024-11-20 01:02:59,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 01:02:59,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 01:02:59,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:03:00,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 01:03:00,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:03:00,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-20 01:03:00,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:03:00,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 01:03:00,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:03:00,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2024-11-20 01:03:00,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:03:00,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 356 [2024-11-20 01:03:00,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:03:00,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2024-11-20 01:03:00,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:03:00,515 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-20 01:03:00,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 01:03:00,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092089758] [2024-11-20 01:03:00,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1092089758] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 01:03:00,515 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 01:03:00,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 01:03:00,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496684126] [2024-11-20 01:03:00,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 01:03:00,516 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 01:03:00,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 01:03:00,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 01:03:00,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-20 01:03:00,517 INFO L87 Difference]: Start difference. First operand 711 states and 982 transitions. Second operand has 5 states, 5 states have (on average 87.0) internal successors, (435), 5 states have internal predecessors, (435), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-20 01:03:00,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 01:03:00,844 INFO L93 Difference]: Finished difference Result 1165 states and 1611 transitions. [2024-11-20 01:03:00,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 01:03:00,845 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 87.0) internal successors, (435), 5 states have internal predecessors, (435), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 462 [2024-11-20 01:03:00,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 01:03:00,847 INFO L225 Difference]: With dead ends: 1165 [2024-11-20 01:03:00,847 INFO L226 Difference]: Without dead ends: 711 [2024-11-20 01:03:00,848 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-20 01:03:00,849 INFO L432 NwaCegarLoop]: 578 mSDtfsCounter, 583 mSDsluCounter, 587 mSDsCounter, 0 mSdLazyCounter, 392 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 586 SdHoareTripleChecker+Valid, 1165 SdHoareTripleChecker+Invalid, 393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-20 01:03:00,849 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [586 Valid, 1165 Invalid, 393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 392 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-20 01:03:00,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 711 states. [2024-11-20 01:03:00,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 711 to 711. [2024-11-20 01:03:00,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 711 states, 703 states have (on average 1.3783783783783783) internal successors, (969), 703 states have internal predecessors, (969), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-20 01:03:00,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 711 states to 711 states and 981 transitions. [2024-11-20 01:03:00,865 INFO L78 Accepts]: Start accepts. Automaton has 711 states and 981 transitions. Word has length 462 [2024-11-20 01:03:00,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 01:03:00,866 INFO L471 AbstractCegarLoop]: Abstraction has 711 states and 981 transitions. [2024-11-20 01:03:00,866 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 87.0) internal successors, (435), 5 states have internal predecessors, (435), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-20 01:03:00,866 INFO L276 IsEmpty]: Start isEmpty. Operand 711 states and 981 transitions. [2024-11-20 01:03:00,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 464 [2024-11-20 01:03:00,869 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 01:03:00,869 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:03:00,869 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2024-11-20 01:03:00,870 INFO L396 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 01:03:00,870 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 01:03:00,870 INFO L85 PathProgramCache]: Analyzing trace with hash 630325327, now seen corresponding path program 1 times [2024-11-20 01:03:00,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 01:03:00,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366767727] [2024-11-20 01:03:00,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 01:03:00,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 01:03:01,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:03:02,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 01:03:02,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:03:02,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-20 01:03:02,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:03:02,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 01:03:02,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:03:02,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2024-11-20 01:03:02,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:03:02,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 357 [2024-11-20 01:03:02,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:03:02,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 369 [2024-11-20 01:03:02,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:03:02,737 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-20 01:03:02,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 01:03:02,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366767727] [2024-11-20 01:03:02,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366767727] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 01:03:02,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 01:03:02,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 01:03:02,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627427072] [2024-11-20 01:03:02,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 01:03:02,739 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 01:03:02,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 01:03:02,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 01:03:02,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 01:03:02,740 INFO L87 Difference]: Start difference. First operand 711 states and 981 transitions. Second operand has 4 states, 4 states have (on average 109.0) internal successors, (436), 4 states have internal predecessors, (436), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-20 01:03:02,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 01:03:02,798 INFO L93 Difference]: Finished difference Result 1165 states and 1609 transitions. [2024-11-20 01:03:02,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 01:03:02,799 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 109.0) internal successors, (436), 4 states have internal predecessors, (436), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 463 [2024-11-20 01:03:02,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 01:03:02,800 INFO L225 Difference]: With dead ends: 1165 [2024-11-20 01:03:02,800 INFO L226 Difference]: Without dead ends: 711 [2024-11-20 01:03:02,801 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-20 01:03:02,802 INFO L432 NwaCegarLoop]: 756 mSDtfsCounter, 496 mSDsluCounter, 758 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 496 SdHoareTripleChecker+Valid, 1514 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 01:03:02,802 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [496 Valid, 1514 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 01:03:02,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 711 states. [2024-11-20 01:03:02,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 711 to 711. [2024-11-20 01:03:02,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 711 states, 703 states have (on average 1.3769559032716927) internal successors, (968), 703 states have internal predecessors, (968), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-20 01:03:02,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 711 states to 711 states and 980 transitions. [2024-11-20 01:03:02,827 INFO L78 Accepts]: Start accepts. Automaton has 711 states and 980 transitions. Word has length 463 [2024-11-20 01:03:02,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 01:03:02,828 INFO L471 AbstractCegarLoop]: Abstraction has 711 states and 980 transitions. [2024-11-20 01:03:02,828 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 109.0) internal successors, (436), 4 states have internal predecessors, (436), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-20 01:03:02,828 INFO L276 IsEmpty]: Start isEmpty. Operand 711 states and 980 transitions. [2024-11-20 01:03:02,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 465 [2024-11-20 01:03:02,832 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 01:03:02,833 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:03:02,833 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2024-11-20 01:03:02,833 INFO L396 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 01:03:02,833 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 01:03:02,834 INFO L85 PathProgramCache]: Analyzing trace with hash 56160607, now seen corresponding path program 1 times [2024-11-20 01:03:02,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 01:03:02,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155424772] [2024-11-20 01:03:02,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 01:03:02,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 01:03:03,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:03:04,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 01:03:04,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:03:04,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-20 01:03:04,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:03:04,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 01:03:04,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:03:04,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2024-11-20 01:03:04,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:03:04,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2024-11-20 01:03:04,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:03:04,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 370 [2024-11-20 01:03:04,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:03:04,652 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-20 01:03:04,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 01:03:04,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155424772] [2024-11-20 01:03:04,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1155424772] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 01:03:04,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 01:03:04,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 01:03:04,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280043848] [2024-11-20 01:03:04,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 01:03:04,653 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 01:03:04,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 01:03:04,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 01:03:04,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-20 01:03:04,654 INFO L87 Difference]: Start difference. First operand 711 states and 980 transitions. Second operand has 5 states, 5 states have (on average 87.4) internal successors, (437), 5 states have internal predecessors, (437), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-20 01:03:04,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 01:03:04,752 INFO L93 Difference]: Finished difference Result 1165 states and 1607 transitions. [2024-11-20 01:03:04,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 01:03:04,754 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 87.4) internal successors, (437), 5 states have internal predecessors, (437), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 464 [2024-11-20 01:03:04,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 01:03:04,755 INFO L225 Difference]: With dead ends: 1165 [2024-11-20 01:03:04,756 INFO L226 Difference]: Without dead ends: 711 [2024-11-20 01:03:04,756 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-20 01:03:04,757 INFO L432 NwaCegarLoop]: 741 mSDtfsCounter, 1177 mSDsluCounter, 743 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1177 SdHoareTripleChecker+Valid, 1484 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 01:03:04,757 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1177 Valid, 1484 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 01:03:04,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 711 states. [2024-11-20 01:03:04,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 711 to 711. [2024-11-20 01:03:04,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 711 states, 703 states have (on average 1.3755334281650071) internal successors, (967), 703 states have internal predecessors, (967), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-20 01:03:04,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 711 states to 711 states and 979 transitions. [2024-11-20 01:03:04,774 INFO L78 Accepts]: Start accepts. Automaton has 711 states and 979 transitions. Word has length 464 [2024-11-20 01:03:04,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 01:03:04,775 INFO L471 AbstractCegarLoop]: Abstraction has 711 states and 979 transitions. [2024-11-20 01:03:04,775 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 87.4) internal successors, (437), 5 states have internal predecessors, (437), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-20 01:03:04,775 INFO L276 IsEmpty]: Start isEmpty. Operand 711 states and 979 transitions. [2024-11-20 01:03:04,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 466 [2024-11-20 01:03:04,778 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 01:03:04,778 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:03:04,778 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2024-11-20 01:03:04,778 INFO L396 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 01:03:04,779 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 01:03:04,779 INFO L85 PathProgramCache]: Analyzing trace with hash -868518769, now seen corresponding path program 1 times [2024-11-20 01:03:04,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 01:03:04,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483135268] [2024-11-20 01:03:04,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 01:03:04,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 01:03:05,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:03:06,285 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 01:03:06,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:03:06,288 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-20 01:03:06,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:03:06,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 01:03:06,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:03:06,294 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2024-11-20 01:03:06,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:03:06,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2024-11-20 01:03:06,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:03:06,299 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 371 [2024-11-20 01:03:06,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:03:06,303 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-20 01:03:06,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 01:03:06,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483135268] [2024-11-20 01:03:06,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1483135268] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 01:03:06,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 01:03:06,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 01:03:06,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207889849] [2024-11-20 01:03:06,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 01:03:06,304 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 01:03:06,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 01:03:06,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 01:03:06,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-20 01:03:06,308 INFO L87 Difference]: Start difference. First operand 711 states and 979 transitions. Second operand has 5 states, 5 states have (on average 87.6) internal successors, (438), 5 states have internal predecessors, (438), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-20 01:03:06,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 01:03:06,397 INFO L93 Difference]: Finished difference Result 1165 states and 1605 transitions. [2024-11-20 01:03:06,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 01:03:06,400 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 87.6) internal successors, (438), 5 states have internal predecessors, (438), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 465 [2024-11-20 01:03:06,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 01:03:06,402 INFO L225 Difference]: With dead ends: 1165 [2024-11-20 01:03:06,402 INFO L226 Difference]: Without dead ends: 711 [2024-11-20 01:03:06,403 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-20 01:03:06,403 INFO L432 NwaCegarLoop]: 741 mSDtfsCounter, 1167 mSDsluCounter, 743 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1167 SdHoareTripleChecker+Valid, 1484 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 01:03:06,404 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1167 Valid, 1484 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 01:03:06,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 711 states. [2024-11-20 01:03:06,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 711 to 711. [2024-11-20 01:03:06,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 711 states, 703 states have (on average 1.3741109530583215) internal successors, (966), 703 states have internal predecessors, (966), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-20 01:03:06,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 711 states to 711 states and 978 transitions. [2024-11-20 01:03:06,420 INFO L78 Accepts]: Start accepts. Automaton has 711 states and 978 transitions. Word has length 465 [2024-11-20 01:03:06,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 01:03:06,422 INFO L471 AbstractCegarLoop]: Abstraction has 711 states and 978 transitions. [2024-11-20 01:03:06,422 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 87.6) internal successors, (438), 5 states have internal predecessors, (438), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-20 01:03:06,422 INFO L276 IsEmpty]: Start isEmpty. Operand 711 states and 978 transitions. [2024-11-20 01:03:06,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 467 [2024-11-20 01:03:06,425 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 01:03:06,425 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:03:06,425 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2024-11-20 01:03:06,426 INFO L396 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 01:03:06,426 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 01:03:06,426 INFO L85 PathProgramCache]: Analyzing trace with hash -1406863122, now seen corresponding path program 1 times [2024-11-20 01:03:06,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 01:03:06,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018896025] [2024-11-20 01:03:06,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 01:03:06,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 01:03:07,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:03:07,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 01:03:07,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:03:07,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-20 01:03:07,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:03:07,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 01:03:07,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:03:07,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2024-11-20 01:03:07,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:03:07,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2024-11-20 01:03:07,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:03:07,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2024-11-20 01:03:07,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:03:07,671 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-20 01:03:07,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 01:03:07,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018896025] [2024-11-20 01:03:07,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2018896025] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 01:03:07,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 01:03:07,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 01:03:07,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011893545] [2024-11-20 01:03:07,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 01:03:07,672 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 01:03:07,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 01:03:07,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 01:03:07,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 01:03:07,674 INFO L87 Difference]: Start difference. First operand 711 states and 978 transitions. Second operand has 4 states, 4 states have (on average 109.75) internal successors, (439), 4 states have internal predecessors, (439), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-20 01:03:07,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 01:03:07,737 INFO L93 Difference]: Finished difference Result 1165 states and 1603 transitions. [2024-11-20 01:03:07,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 01:03:07,737 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 109.75) internal successors, (439), 4 states have internal predecessors, (439), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 466 [2024-11-20 01:03:07,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 01:03:07,739 INFO L225 Difference]: With dead ends: 1165 [2024-11-20 01:03:07,739 INFO L226 Difference]: Without dead ends: 711 [2024-11-20 01:03:07,739 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-20 01:03:07,740 INFO L432 NwaCegarLoop]: 741 mSDtfsCounter, 505 mSDsluCounter, 743 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 505 SdHoareTripleChecker+Valid, 1484 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 01:03:07,740 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [505 Valid, 1484 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 01:03:07,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 711 states. [2024-11-20 01:03:07,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 711 to 711. [2024-11-20 01:03:07,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 711 states, 703 states have (on average 1.372688477951636) internal successors, (965), 703 states have internal predecessors, (965), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-20 01:03:07,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 711 states to 711 states and 977 transitions. [2024-11-20 01:03:07,754 INFO L78 Accepts]: Start accepts. Automaton has 711 states and 977 transitions. Word has length 466 [2024-11-20 01:03:07,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 01:03:07,755 INFO L471 AbstractCegarLoop]: Abstraction has 711 states and 977 transitions. [2024-11-20 01:03:07,755 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 109.75) internal successors, (439), 4 states have internal predecessors, (439), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-20 01:03:07,755 INFO L276 IsEmpty]: Start isEmpty. Operand 711 states and 977 transitions. [2024-11-20 01:03:07,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 468 [2024-11-20 01:03:07,758 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 01:03:07,758 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:03:07,758 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2024-11-20 01:03:07,759 INFO L396 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 01:03:07,759 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 01:03:07,759 INFO L85 PathProgramCache]: Analyzing trace with hash 532574656, now seen corresponding path program 1 times [2024-11-20 01:03:07,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 01:03:07,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867445113] [2024-11-20 01:03:07,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 01:03:07,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 01:03:08,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:03:09,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 01:03:09,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:03:09,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-20 01:03:09,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:03:09,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 01:03:09,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:03:09,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 345 [2024-11-20 01:03:09,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:03:09,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 361 [2024-11-20 01:03:09,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:03:09,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 373 [2024-11-20 01:03:09,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:03:09,082 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-20 01:03:09,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 01:03:09,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867445113] [2024-11-20 01:03:09,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1867445113] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 01:03:09,083 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 01:03:09,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 01:03:09,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470470418] [2024-11-20 01:03:09,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 01:03:09,084 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 01:03:09,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 01:03:09,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 01:03:09,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-20 01:03:09,085 INFO L87 Difference]: Start difference. First operand 711 states and 977 transitions. Second operand has 5 states, 5 states have (on average 88.0) internal successors, (440), 5 states have internal predecessors, (440), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-20 01:03:09,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 01:03:09,226 INFO L93 Difference]: Finished difference Result 1165 states and 1601 transitions. [2024-11-20 01:03:09,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 01:03:09,226 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 88.0) internal successors, (440), 5 states have internal predecessors, (440), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 467 [2024-11-20 01:03:09,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 01:03:09,228 INFO L225 Difference]: With dead ends: 1165 [2024-11-20 01:03:09,228 INFO L226 Difference]: Without dead ends: 711 [2024-11-20 01:03:09,228 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-20 01:03:09,229 INFO L432 NwaCegarLoop]: 710 mSDtfsCounter, 1212 mSDsluCounter, 712 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1212 SdHoareTripleChecker+Valid, 1422 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 01:03:09,229 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1212 Valid, 1422 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 01:03:09,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 711 states. [2024-11-20 01:03:09,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 711 to 711. [2024-11-20 01:03:09,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 711 states, 703 states have (on average 1.3712660028449501) internal successors, (964), 703 states have internal predecessors, (964), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-20 01:03:09,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 711 states to 711 states and 976 transitions. [2024-11-20 01:03:09,243 INFO L78 Accepts]: Start accepts. Automaton has 711 states and 976 transitions. Word has length 467 [2024-11-20 01:03:09,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 01:03:09,244 INFO L471 AbstractCegarLoop]: Abstraction has 711 states and 976 transitions. [2024-11-20 01:03:09,244 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 88.0) internal successors, (440), 5 states have internal predecessors, (440), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-20 01:03:09,244 INFO L276 IsEmpty]: Start isEmpty. Operand 711 states and 976 transitions. [2024-11-20 01:03:09,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 469 [2024-11-20 01:03:09,248 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 01:03:09,248 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:03:09,248 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2024-11-20 01:03:09,248 INFO L396 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 01:03:09,249 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 01:03:09,249 INFO L85 PathProgramCache]: Analyzing trace with hash -670725104, now seen corresponding path program 1 times [2024-11-20 01:03:09,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 01:03:09,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829276176] [2024-11-20 01:03:09,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 01:03:09,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 01:03:09,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:03:10,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 01:03:10,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:03:10,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-20 01:03:10,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:03:10,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 01:03:10,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:03:10,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2024-11-20 01:03:10,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:03:10,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2024-11-20 01:03:10,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:03:10,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2024-11-20 01:03:10,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:03:10,483 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-20 01:03:10,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 01:03:10,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829276176] [2024-11-20 01:03:10,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1829276176] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 01:03:10,483 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 01:03:10,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 01:03:10,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647067736] [2024-11-20 01:03:10,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 01:03:10,485 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 01:03:10,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 01:03:10,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 01:03:10,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-20 01:03:10,486 INFO L87 Difference]: Start difference. First operand 711 states and 976 transitions. Second operand has 5 states, 5 states have (on average 88.2) internal successors, (441), 5 states have internal predecessors, (441), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-20 01:03:10,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 01:03:10,644 INFO L93 Difference]: Finished difference Result 1165 states and 1599 transitions. [2024-11-20 01:03:10,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 01:03:10,645 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 88.2) internal successors, (441), 5 states have internal predecessors, (441), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 468 [2024-11-20 01:03:10,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 01:03:10,646 INFO L225 Difference]: With dead ends: 1165 [2024-11-20 01:03:10,646 INFO L226 Difference]: Without dead ends: 711 [2024-11-20 01:03:10,647 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-20 01:03:10,647 INFO L432 NwaCegarLoop]: 710 mSDtfsCounter, 1202 mSDsluCounter, 712 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1202 SdHoareTripleChecker+Valid, 1422 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 01:03:10,648 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1202 Valid, 1422 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 01:03:10,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 711 states. [2024-11-20 01:03:10,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 711 to 711. [2024-11-20 01:03:10,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 711 states, 703 states have (on average 1.3698435277382646) internal successors, (963), 703 states have internal predecessors, (963), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-20 01:03:10,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 711 states to 711 states and 975 transitions. [2024-11-20 01:03:10,663 INFO L78 Accepts]: Start accepts. Automaton has 711 states and 975 transitions. Word has length 468 [2024-11-20 01:03:10,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 01:03:10,663 INFO L471 AbstractCegarLoop]: Abstraction has 711 states and 975 transitions. [2024-11-20 01:03:10,664 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 88.2) internal successors, (441), 5 states have internal predecessors, (441), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-20 01:03:10,664 INFO L276 IsEmpty]: Start isEmpty. Operand 711 states and 975 transitions. [2024-11-20 01:03:10,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 470 [2024-11-20 01:03:10,667 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 01:03:10,668 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:03:10,668 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2024-11-20 01:03:10,668 INFO L396 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 01:03:10,668 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 01:03:10,668 INFO L85 PathProgramCache]: Analyzing trace with hash -1840507695, now seen corresponding path program 1 times [2024-11-20 01:03:10,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 01:03:10,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128381413] [2024-11-20 01:03:10,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 01:03:10,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 01:03:11,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:03:12,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 01:03:12,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:03:12,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-20 01:03:12,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:03:12,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 01:03:12,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:03:12,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2024-11-20 01:03:12,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:03:12,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2024-11-20 01:03:12,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:03:12,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2024-11-20 01:03:12,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:03:12,075 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-20 01:03:12,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 01:03:12,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128381413] [2024-11-20 01:03:12,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128381413] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 01:03:12,075 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 01:03:12,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 01:03:12,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091456892] [2024-11-20 01:03:12,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 01:03:12,076 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 01:03:12,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 01:03:12,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 01:03:12,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 01:03:12,077 INFO L87 Difference]: Start difference. First operand 711 states and 975 transitions. Second operand has 4 states, 4 states have (on average 110.5) internal successors, (442), 4 states have internal predecessors, (442), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-20 01:03:12,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 01:03:12,181 INFO L93 Difference]: Finished difference Result 1165 states and 1597 transitions. [2024-11-20 01:03:12,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 01:03:12,182 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 110.5) internal successors, (442), 4 states have internal predecessors, (442), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 469 [2024-11-20 01:03:12,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 01:03:12,184 INFO L225 Difference]: With dead ends: 1165 [2024-11-20 01:03:12,185 INFO L226 Difference]: Without dead ends: 711 [2024-11-20 01:03:12,185 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-20 01:03:12,186 INFO L432 NwaCegarLoop]: 710 mSDtfsCounter, 558 mSDsluCounter, 712 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 558 SdHoareTripleChecker+Valid, 1422 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 01:03:12,186 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [558 Valid, 1422 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 01:03:12,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 711 states. [2024-11-20 01:03:12,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 711 to 711. [2024-11-20 01:03:12,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 711 states, 703 states have (on average 1.368421052631579) internal successors, (962), 703 states have internal predecessors, (962), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-20 01:03:12,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 711 states to 711 states and 974 transitions. [2024-11-20 01:03:12,201 INFO L78 Accepts]: Start accepts. Automaton has 711 states and 974 transitions. Word has length 469 [2024-11-20 01:03:12,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 01:03:12,201 INFO L471 AbstractCegarLoop]: Abstraction has 711 states and 974 transitions. [2024-11-20 01:03:12,202 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 110.5) internal successors, (442), 4 states have internal predecessors, (442), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-20 01:03:12,202 INFO L276 IsEmpty]: Start isEmpty. Operand 711 states and 974 transitions. [2024-11-20 01:03:12,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 471 [2024-11-20 01:03:12,204 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 01:03:12,205 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:03:12,205 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2024-11-20 01:03:12,205 INFO L396 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 01:03:12,205 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 01:03:12,206 INFO L85 PathProgramCache]: Analyzing trace with hash -1019417537, now seen corresponding path program 1 times [2024-11-20 01:03:12,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 01:03:12,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311283865] [2024-11-20 01:03:12,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 01:03:12,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 01:03:12,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:03:13,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 01:03:13,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:03:13,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-20 01:03:13,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:03:13,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 01:03:13,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:03:13,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2024-11-20 01:03:13,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:03:13,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 364 [2024-11-20 01:03:13,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:03:13,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2024-11-20 01:03:13,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:03:13,531 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-20 01:03:13,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 01:03:13,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311283865] [2024-11-20 01:03:13,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [311283865] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 01:03:13,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 01:03:13,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 01:03:13,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211228044] [2024-11-20 01:03:13,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 01:03:13,534 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 01:03:13,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 01:03:13,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 01:03:13,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-20 01:03:13,535 INFO L87 Difference]: Start difference. First operand 711 states and 974 transitions. Second operand has 5 states, 5 states have (on average 88.6) internal successors, (443), 5 states have internal predecessors, (443), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-20 01:03:13,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 01:03:13,682 INFO L93 Difference]: Finished difference Result 1165 states and 1595 transitions. [2024-11-20 01:03:13,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 01:03:13,684 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 88.6) internal successors, (443), 5 states have internal predecessors, (443), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 470 [2024-11-20 01:03:13,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 01:03:13,686 INFO L225 Difference]: With dead ends: 1165 [2024-11-20 01:03:13,686 INFO L226 Difference]: Without dead ends: 711 [2024-11-20 01:03:13,686 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-20 01:03:13,687 INFO L432 NwaCegarLoop]: 710 mSDtfsCounter, 634 mSDsluCounter, 719 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 634 SdHoareTripleChecker+Valid, 1429 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 01:03:13,688 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [634 Valid, 1429 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 01:03:13,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 711 states. [2024-11-20 01:03:13,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 711 to 711. [2024-11-20 01:03:13,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 711 states, 703 states have (on average 1.3669985775248934) internal successors, (961), 703 states have internal predecessors, (961), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-20 01:03:13,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 711 states to 711 states and 973 transitions. [2024-11-20 01:03:13,701 INFO L78 Accepts]: Start accepts. Automaton has 711 states and 973 transitions. Word has length 470 [2024-11-20 01:03:13,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 01:03:13,702 INFO L471 AbstractCegarLoop]: Abstraction has 711 states and 973 transitions. [2024-11-20 01:03:13,702 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 88.6) internal successors, (443), 5 states have internal predecessors, (443), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-20 01:03:13,702 INFO L276 IsEmpty]: Start isEmpty. Operand 711 states and 973 transitions. [2024-11-20 01:03:13,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 472 [2024-11-20 01:03:13,705 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 01:03:13,705 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:03:13,705 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2024-11-20 01:03:13,705 INFO L396 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 01:03:13,706 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 01:03:13,706 INFO L85 PathProgramCache]: Analyzing trace with hash 2040864098, now seen corresponding path program 1 times [2024-11-20 01:03:13,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 01:03:13,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084058794] [2024-11-20 01:03:13,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 01:03:13,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 01:03:14,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:03:15,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 01:03:15,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:03:15,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-20 01:03:15,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:03:15,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 01:03:15,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:03:15,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 349 [2024-11-20 01:03:15,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:03:15,081 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 365 [2024-11-20 01:03:15,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:03:15,081 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 377 [2024-11-20 01:03:15,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:03:15,085 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-20 01:03:15,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 01:03:15,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084058794] [2024-11-20 01:03:15,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1084058794] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 01:03:15,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 01:03:15,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 01:03:15,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259537532] [2024-11-20 01:03:15,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 01:03:15,087 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 01:03:15,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 01:03:15,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 01:03:15,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-20 01:03:15,088 INFO L87 Difference]: Start difference. First operand 711 states and 973 transitions. Second operand has 5 states, 5 states have (on average 88.8) internal successors, (444), 5 states have internal predecessors, (444), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-20 01:03:15,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 01:03:15,240 INFO L93 Difference]: Finished difference Result 1165 states and 1593 transitions. [2024-11-20 01:03:15,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 01:03:15,241 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 88.8) internal successors, (444), 5 states have internal predecessors, (444), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 471 [2024-11-20 01:03:15,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 01:03:15,243 INFO L225 Difference]: With dead ends: 1165 [2024-11-20 01:03:15,243 INFO L226 Difference]: Without dead ends: 711 [2024-11-20 01:03:15,244 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-20 01:03:15,244 INFO L432 NwaCegarLoop]: 710 mSDtfsCounter, 633 mSDsluCounter, 719 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 633 SdHoareTripleChecker+Valid, 1429 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 01:03:15,244 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [633 Valid, 1429 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 01:03:15,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 711 states. [2024-11-20 01:03:15,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 711 to 711. [2024-11-20 01:03:15,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 711 states, 703 states have (on average 1.3655761024182076) internal successors, (960), 703 states have internal predecessors, (960), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-20 01:03:15,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 711 states to 711 states and 972 transitions. [2024-11-20 01:03:15,270 INFO L78 Accepts]: Start accepts. Automaton has 711 states and 972 transitions. Word has length 471 [2024-11-20 01:03:15,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 01:03:15,270 INFO L471 AbstractCegarLoop]: Abstraction has 711 states and 972 transitions. [2024-11-20 01:03:15,271 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 88.8) internal successors, (444), 5 states have internal predecessors, (444), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-20 01:03:15,271 INFO L276 IsEmpty]: Start isEmpty. Operand 711 states and 972 transitions. [2024-11-20 01:03:15,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 473 [2024-11-20 01:03:15,275 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 01:03:15,275 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:03:15,276 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2024-11-20 01:03:15,276 INFO L396 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 01:03:15,276 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 01:03:15,276 INFO L85 PathProgramCache]: Analyzing trace with hash -880275730, now seen corresponding path program 1 times [2024-11-20 01:03:15,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 01:03:15,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261057117] [2024-11-20 01:03:15,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 01:03:15,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 01:03:15,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:03:16,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 01:03:16,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:03:16,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-20 01:03:16,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:03:16,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 01:03:16,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:03:16,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2024-11-20 01:03:16,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:03:16,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2024-11-20 01:03:16,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:03:16,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 378 [2024-11-20 01:03:16,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 01:03:16,542 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-20 01:03:16,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 01:03:16,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261057117] [2024-11-20 01:03:16,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1261057117] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 01:03:16,542 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 01:03:16,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 01:03:16,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094527955] [2024-11-20 01:03:16,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 01:03:16,543 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 01:03:16,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 01:03:16,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 01:03:16,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-20 01:03:16,545 INFO L87 Difference]: Start difference. First operand 711 states and 972 transitions. Second operand has 5 states, 5 states have (on average 89.0) internal successors, (445), 5 states have internal predecessors, (445), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-20 01:03:16,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 01:03:16,654 INFO L93 Difference]: Finished difference Result 1165 states and 1591 transitions. [2024-11-20 01:03:16,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 01:03:16,655 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 89.0) internal successors, (445), 5 states have internal predecessors, (445), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 472 [2024-11-20 01:03:16,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 01:03:16,656 INFO L225 Difference]: With dead ends: 1165 [2024-11-20 01:03:16,657 INFO L226 Difference]: Without dead ends: 711 [2024-11-20 01:03:16,657 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-20 01:03:16,658 INFO L432 NwaCegarLoop]: 710 mSDtfsCounter, 1162 mSDsluCounter, 712 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1162 SdHoareTripleChecker+Valid, 1422 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 01:03:16,658 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1162 Valid, 1422 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 01:03:16,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 711 states. [2024-11-20 01:03:16,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 711 to 711. [2024-11-20 01:03:16,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 711 states, 703 states have (on average 1.364153627311522) internal successors, (959), 703 states have internal predecessors, (959), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-20 01:03:16,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 711 states to 711 states and 971 transitions. [2024-11-20 01:03:16,673 INFO L78 Accepts]: Start accepts. Automaton has 711 states and 971 transitions. Word has length 472 [2024-11-20 01:03:16,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 01:03:16,673 INFO L471 AbstractCegarLoop]: Abstraction has 711 states and 971 transitions. [2024-11-20 01:03:16,673 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 89.0) internal successors, (445), 5 states have internal predecessors, (445), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-20 01:03:16,674 INFO L276 IsEmpty]: Start isEmpty. Operand 711 states and 971 transitions. [2024-11-20 01:03:16,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 474 [2024-11-20 01:03:16,676 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 01:03:16,676 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:03:16,677 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2024-11-20 01:03:16,677 INFO L396 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 01:03:16,677 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 01:03:16,677 INFO L85 PathProgramCache]: Analyzing trace with hash -985187469, now seen corresponding path program 1 times [2024-11-20 01:03:16,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 01:03:16,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246781033] [2024-11-20 01:03:16,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 01:03:16,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms