./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.8.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 61a67961 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/seq-mthreaded-reduced/pals_lcr.8.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d09ea01cef1d93b0c86c8a3dadfd601718ca81915e873154848504beefeee43f --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 04:01:38,482 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 04:01:38,546 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-14 04:01:38,551 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 04:01:38,554 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 04:01:38,602 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 04:01:38,602 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 04:01:38,603 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 04:01:38,603 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 04:01:38,603 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 04:01:38,604 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 04:01:38,604 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 04:01:38,604 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 04:01:38,605 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 04:01:38,605 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 04:01:38,605 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 04:01:38,606 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 04:01:38,606 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 04:01:38,606 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 04:01:38,607 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 04:01:38,607 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 04:01:38,607 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 04:01:38,608 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 04:01:38,608 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 04:01:38,608 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 04:01:38,608 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 04:01:38,609 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 04:01:38,609 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 04:01:38,609 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 04:01:38,610 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 04:01:38,610 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 04:01:38,610 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 04:01:38,610 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 04:01:38,611 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 04:01:38,611 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 04:01:38,611 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 04:01:38,612 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 04:01:38,612 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 04:01:38,612 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 04:01:38,613 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 04:01:38,613 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 04:01:38,613 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 04:01:38,613 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d09ea01cef1d93b0c86c8a3dadfd601718ca81915e873154848504beefeee43f [2024-10-14 04:01:38,822 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 04:01:38,848 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 04:01:38,852 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 04:01:38,853 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 04:01:38,854 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 04:01:38,856 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.8.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2024-10-14 04:01:40,156 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 04:01:40,435 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 04:01:40,436 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.8.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2024-10-14 04:01:40,453 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3badfbaed/f378007e779f46208cc87b5a3cdf4730/FLAG4aa63ebb1 [2024-10-14 04:01:40,467 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3badfbaed/f378007e779f46208cc87b5a3cdf4730 [2024-10-14 04:01:40,470 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 04:01:40,471 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 04:01:40,472 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 04:01:40,473 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 04:01:40,477 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 04:01:40,478 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 04:01:40" (1/1) ... [2024-10-14 04:01:40,480 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15ab6ff8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:01:40, skipping insertion in model container [2024-10-14 04:01:40,480 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 04:01:40" (1/1) ... [2024-10-14 04:01:40,534 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 04:01:40,826 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.8.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[11680,11693] [2024-10-14 04:01:40,869 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 04:01:40,888 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 04:01:40,986 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.8.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[11680,11693] [2024-10-14 04:01:41,042 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 04:01:41,064 INFO L204 MainTranslator]: Completed translation [2024-10-14 04:01:41,065 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:01:41 WrapperNode [2024-10-14 04:01:41,065 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 04:01:41,066 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 04:01:41,066 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 04:01:41,066 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 04:01:41,072 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:01:41" (1/1) ... [2024-10-14 04:01:41,090 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:01:41" (1/1) ... [2024-10-14 04:01:41,146 INFO L138 Inliner]: procedures = 28, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1033 [2024-10-14 04:01:41,150 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 04:01:41,151 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 04:01:41,151 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 04:01:41,154 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 04:01:41,162 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:01:41" (1/1) ... [2024-10-14 04:01:41,163 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:01:41" (1/1) ... [2024-10-14 04:01:41,166 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:01:41" (1/1) ... [2024-10-14 04:01:41,196 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]. [2024-10-14 04:01:41,196 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:01:41" (1/1) ... [2024-10-14 04:01:41,196 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:01:41" (1/1) ... [2024-10-14 04:01:41,217 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:01:41" (1/1) ... [2024-10-14 04:01:41,226 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:01:41" (1/1) ... [2024-10-14 04:01:41,232 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:01:41" (1/1) ... [2024-10-14 04:01:41,239 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:01:41" (1/1) ... [2024-10-14 04:01:41,247 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 04:01:41,248 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 04:01:41,248 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 04:01:41,248 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 04:01:41,249 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:01:41" (1/1) ... [2024-10-14 04:01:41,259 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 04:01:41,267 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 04:01:41,283 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) [2024-10-14 04:01:41,289 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 [2024-10-14 04:01:41,322 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 04:01:41,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 04:01:41,322 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 04:01:41,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 04:01:41,437 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 04:01:41,438 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 04:01:42,098 INFO L? ?]: Removed 115 outVars from TransFormulas that were not future-live. [2024-10-14 04:01:42,099 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 04:01:42,186 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 04:01:42,188 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-14 04:01:42,189 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:01:42 BoogieIcfgContainer [2024-10-14 04:01:42,189 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 04:01:42,191 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 04:01:42,191 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 04:01:42,193 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 04:01:42,194 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 04:01:40" (1/3) ... [2024-10-14 04:01:42,194 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d399513 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:01:42, skipping insertion in model container [2024-10-14 04:01:42,195 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:01:41" (2/3) ... [2024-10-14 04:01:42,195 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d399513 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:01:42, skipping insertion in model container [2024-10-14 04:01:42,195 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:01:42" (3/3) ... [2024-10-14 04:01:42,197 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.8.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2024-10-14 04:01:42,211 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 04:01:42,212 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-14 04:01:42,285 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 04:01:42,291 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;@524df7af, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 04:01:42,291 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-14 04:01:42,298 INFO L276 IsEmpty]: Start isEmpty. Operand has 229 states, 227 states have (on average 1.775330396475771) internal successors, (403), 228 states have internal predecessors, (403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:42,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-10-14 04:01:42,311 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:01:42,313 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:01:42,314 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:01:42,319 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:01:42,319 INFO L85 PathProgramCache]: Analyzing trace with hash 598204425, now seen corresponding path program 1 times [2024-10-14 04:01:42,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:01:42,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835594309] [2024-10-14 04:01:42,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:01:42,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:01:42,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:01:43,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:01:43,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:01:43,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835594309] [2024-10-14 04:01:43,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835594309] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:01:43,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:01:43,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-14 04:01:43,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578863770] [2024-10-14 04:01:43,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:01:43,132 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-14 04:01:43,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:01:43,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-14 04:01:43,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-10-14 04:01:43,159 INFO L87 Difference]: Start difference. First operand has 229 states, 227 states have (on average 1.775330396475771) internal successors, (403), 228 states have internal predecessors, (403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 10 states, 10 states have (on average 12.3) internal successors, (123), 10 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:43,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:01:43,917 INFO L93 Difference]: Finished difference Result 1815 states and 2944 transitions. [2024-10-14 04:01:43,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-10-14 04:01:43,920 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.3) internal successors, (123), 10 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 123 [2024-10-14 04:01:43,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:01:43,940 INFO L225 Difference]: With dead ends: 1815 [2024-10-14 04:01:43,941 INFO L226 Difference]: Without dead ends: 1704 [2024-10-14 04:01:43,946 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=162, Invalid=344, Unknown=0, NotChecked=0, Total=506 [2024-10-14 04:01:43,950 INFO L432 NwaCegarLoop]: 982 mSDtfsCounter, 3807 mSDsluCounter, 7142 mSDsCounter, 0 mSdLazyCounter, 604 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3807 SdHoareTripleChecker+Valid, 8124 SdHoareTripleChecker+Invalid, 608 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 604 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-14 04:01:43,952 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3807 Valid, 8124 Invalid, 608 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 604 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-14 04:01:43,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1704 states. [2024-10-14 04:01:44,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1704 to 347. [2024-10-14 04:01:44,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 347 states, 346 states have (on average 1.4479768786127167) internal successors, (501), 346 states have internal predecessors, (501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:44,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 501 transitions. [2024-10-14 04:01:44,013 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 501 transitions. Word has length 123 [2024-10-14 04:01:44,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:01:44,014 INFO L471 AbstractCegarLoop]: Abstraction has 347 states and 501 transitions. [2024-10-14 04:01:44,014 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.3) internal successors, (123), 10 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:44,014 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 501 transitions. [2024-10-14 04:01:44,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-10-14 04:01:44,016 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:01:44,016 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:01:44,017 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 04:01:44,017 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:01:44,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:01:44,017 INFO L85 PathProgramCache]: Analyzing trace with hash -254247969, now seen corresponding path program 1 times [2024-10-14 04:01:44,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:01:44,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521621210] [2024-10-14 04:01:44,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:01:44,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:01:44,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:01:44,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:01:44,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:01:44,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521621210] [2024-10-14 04:01:44,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521621210] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:01:44,356 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:01:44,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-14 04:01:44,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268973774] [2024-10-14 04:01:44,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:01:44,359 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-14 04:01:44,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:01:44,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-14 04:01:44,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-10-14 04:01:44,362 INFO L87 Difference]: Start difference. First operand 347 states and 501 transitions. Second operand has 10 states, 10 states have (on average 12.5) internal successors, (125), 10 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:44,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:01:44,686 INFO L93 Difference]: Finished difference Result 1959 states and 3066 transitions. [2024-10-14 04:01:44,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-14 04:01:44,687 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.5) internal successors, (125), 10 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 125 [2024-10-14 04:01:44,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:01:44,695 INFO L225 Difference]: With dead ends: 1959 [2024-10-14 04:01:44,696 INFO L226 Difference]: Without dead ends: 1779 [2024-10-14 04:01:44,698 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-10-14 04:01:44,699 INFO L432 NwaCegarLoop]: 961 mSDtfsCounter, 2723 mSDsluCounter, 3087 mSDsCounter, 0 mSdLazyCounter, 371 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2723 SdHoareTripleChecker+Valid, 4048 SdHoareTripleChecker+Invalid, 372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 371 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 04:01:44,700 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2723 Valid, 4048 Invalid, 372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 371 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 04:01:44,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1779 states. [2024-10-14 04:01:44,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1779 to 551. [2024-10-14 04:01:44,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 551 states, 550 states have (on average 1.5036363636363637) internal successors, (827), 550 states have internal predecessors, (827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:44,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 827 transitions. [2024-10-14 04:01:44,742 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 827 transitions. Word has length 125 [2024-10-14 04:01:44,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:01:44,742 INFO L471 AbstractCegarLoop]: Abstraction has 551 states and 827 transitions. [2024-10-14 04:01:44,742 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.5) internal successors, (125), 10 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:44,742 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 827 transitions. [2024-10-14 04:01:44,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-10-14 04:01:44,744 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:01:44,747 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:01:44,747 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 04:01:44,747 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:01:44,747 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:01:44,748 INFO L85 PathProgramCache]: Analyzing trace with hash 2023621771, now seen corresponding path program 1 times [2024-10-14 04:01:44,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:01:44,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92384659] [2024-10-14 04:01:44,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:01:44,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:01:44,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:01:45,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:01:45,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:01:45,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92384659] [2024-10-14 04:01:45,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [92384659] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:01:45,075 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:01:45,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-14 04:01:45,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675051789] [2024-10-14 04:01:45,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:01:45,076 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-14 04:01:45,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:01:45,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-14 04:01:45,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-10-14 04:01:45,078 INFO L87 Difference]: Start difference. First operand 551 states and 827 transitions. Second operand has 10 states, 10 states have (on average 12.5) internal successors, (125), 10 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:45,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:01:45,379 INFO L93 Difference]: Finished difference Result 2163 states and 3392 transitions. [2024-10-14 04:01:45,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-14 04:01:45,380 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.5) internal successors, (125), 10 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 125 [2024-10-14 04:01:45,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:01:45,387 INFO L225 Difference]: With dead ends: 2163 [2024-10-14 04:01:45,388 INFO L226 Difference]: Without dead ends: 1983 [2024-10-14 04:01:45,389 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-10-14 04:01:45,390 INFO L432 NwaCegarLoop]: 828 mSDtfsCounter, 2890 mSDsluCounter, 2706 mSDsCounter, 0 mSdLazyCounter, 330 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2890 SdHoareTripleChecker+Valid, 3534 SdHoareTripleChecker+Invalid, 331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 04:01:45,391 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2890 Valid, 3534 Invalid, 331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 330 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 04:01:45,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1983 states. [2024-10-14 04:01:45,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1983 to 839. [2024-10-14 04:01:45,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 839 states, 838 states have (on average 1.535799522673031) internal successors, (1287), 838 states have internal predecessors, (1287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:45,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 839 states to 839 states and 1287 transitions. [2024-10-14 04:01:45,420 INFO L78 Accepts]: Start accepts. Automaton has 839 states and 1287 transitions. Word has length 125 [2024-10-14 04:01:45,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:01:45,421 INFO L471 AbstractCegarLoop]: Abstraction has 839 states and 1287 transitions. [2024-10-14 04:01:45,421 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.5) internal successors, (125), 10 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:45,421 INFO L276 IsEmpty]: Start isEmpty. Operand 839 states and 1287 transitions. [2024-10-14 04:01:45,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-10-14 04:01:45,423 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:01:45,423 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:01:45,423 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 04:01:45,423 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:01:45,424 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:01:45,424 INFO L85 PathProgramCache]: Analyzing trace with hash -715504879, now seen corresponding path program 1 times [2024-10-14 04:01:45,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:01:45,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392740156] [2024-10-14 04:01:45,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:01:45,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:01:45,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:01:45,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:01:45,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:01:45,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392740156] [2024-10-14 04:01:45,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392740156] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:01:45,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:01:45,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-14 04:01:45,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332971832] [2024-10-14 04:01:45,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:01:45,699 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-14 04:01:45,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:01:45,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-14 04:01:45,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-10-14 04:01:45,700 INFO L87 Difference]: Start difference. First operand 839 states and 1287 transitions. Second operand has 10 states, 10 states have (on average 12.5) internal successors, (125), 10 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:45,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:01:45,959 INFO L93 Difference]: Finished difference Result 2357 states and 3702 transitions. [2024-10-14 04:01:45,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-14 04:01:45,959 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.5) internal successors, (125), 10 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 125 [2024-10-14 04:01:45,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:01:45,965 INFO L225 Difference]: With dead ends: 2357 [2024-10-14 04:01:45,965 INFO L226 Difference]: Without dead ends: 2177 [2024-10-14 04:01:45,966 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-10-14 04:01:45,967 INFO L432 NwaCegarLoop]: 702 mSDtfsCounter, 3488 mSDsluCounter, 2366 mSDsCounter, 0 mSdLazyCounter, 295 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3488 SdHoareTripleChecker+Valid, 3068 SdHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 04:01:45,967 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3488 Valid, 3068 Invalid, 296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 295 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 04:01:45,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2177 states. [2024-10-14 04:01:45,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2177 to 1033. [2024-10-14 04:01:45,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1033 states, 1032 states have (on average 1.5474806201550388) internal successors, (1597), 1032 states have internal predecessors, (1597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:45,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1033 states to 1033 states and 1597 transitions. [2024-10-14 04:01:45,987 INFO L78 Accepts]: Start accepts. Automaton has 1033 states and 1597 transitions. Word has length 125 [2024-10-14 04:01:45,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:01:45,987 INFO L471 AbstractCegarLoop]: Abstraction has 1033 states and 1597 transitions. [2024-10-14 04:01:45,987 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.5) internal successors, (125), 10 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:45,987 INFO L276 IsEmpty]: Start isEmpty. Operand 1033 states and 1597 transitions. [2024-10-14 04:01:45,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-10-14 04:01:45,991 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:01:45,992 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:01:45,992 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 04:01:45,992 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:01:45,992 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:01:45,992 INFO L85 PathProgramCache]: Analyzing trace with hash 1017043939, now seen corresponding path program 1 times [2024-10-14 04:01:45,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:01:45,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993181209] [2024-10-14 04:01:45,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:01:45,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:01:46,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:01:46,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:01:46,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:01:46,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993181209] [2024-10-14 04:01:46,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [993181209] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:01:46,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:01:46,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-14 04:01:46,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665818204] [2024-10-14 04:01:46,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:01:46,232 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-14 04:01:46,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:01:46,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-14 04:01:46,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-10-14 04:01:46,234 INFO L87 Difference]: Start difference. First operand 1033 states and 1597 transitions. Second operand has 10 states, 10 states have (on average 12.5) internal successors, (125), 10 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:46,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:01:46,542 INFO L93 Difference]: Finished difference Result 2546 states and 4004 transitions. [2024-10-14 04:01:46,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-14 04:01:46,543 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.5) internal successors, (125), 10 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 125 [2024-10-14 04:01:46,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:01:46,549 INFO L225 Difference]: With dead ends: 2546 [2024-10-14 04:01:46,550 INFO L226 Difference]: Without dead ends: 2366 [2024-10-14 04:01:46,550 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-10-14 04:01:46,552 INFO L432 NwaCegarLoop]: 560 mSDtfsCounter, 3813 mSDsluCounter, 2741 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3813 SdHoareTripleChecker+Valid, 3301 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 04:01:46,552 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3813 Valid, 3301 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 314 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 04:01:46,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2366 states. [2024-10-14 04:01:46,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2366 to 1212. [2024-10-14 04:01:46,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1212 states, 1211 states have (on average 1.5549132947976878) internal successors, (1883), 1211 states have internal predecessors, (1883), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:46,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1212 states to 1212 states and 1883 transitions. [2024-10-14 04:01:46,582 INFO L78 Accepts]: Start accepts. Automaton has 1212 states and 1883 transitions. Word has length 125 [2024-10-14 04:01:46,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:01:46,583 INFO L471 AbstractCegarLoop]: Abstraction has 1212 states and 1883 transitions. [2024-10-14 04:01:46,583 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.5) internal successors, (125), 10 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:46,583 INFO L276 IsEmpty]: Start isEmpty. Operand 1212 states and 1883 transitions. [2024-10-14 04:01:46,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-10-14 04:01:46,584 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:01:46,584 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:01:46,584 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-14 04:01:46,584 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:01:46,585 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:01:46,585 INFO L85 PathProgramCache]: Analyzing trace with hash 1653603817, now seen corresponding path program 1 times [2024-10-14 04:01:46,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:01:46,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135935327] [2024-10-14 04:01:46,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:01:46,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:01:46,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:01:46,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:01:46,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:01:46,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135935327] [2024-10-14 04:01:46,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [135935327] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:01:46,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:01:46,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-14 04:01:46,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127326878] [2024-10-14 04:01:46,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:01:46,838 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-14 04:01:46,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:01:46,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-14 04:01:46,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-10-14 04:01:46,839 INFO L87 Difference]: Start difference. First operand 1212 states and 1883 transitions. Second operand has 10 states, 10 states have (on average 12.5) internal successors, (125), 10 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:47,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:01:47,137 INFO L93 Difference]: Finished difference Result 2724 states and 4289 transitions. [2024-10-14 04:01:47,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-14 04:01:47,138 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.5) internal successors, (125), 10 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 125 [2024-10-14 04:01:47,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:01:47,144 INFO L225 Difference]: With dead ends: 2724 [2024-10-14 04:01:47,145 INFO L226 Difference]: Without dead ends: 2544 [2024-10-14 04:01:47,145 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-10-14 04:01:47,146 INFO L432 NwaCegarLoop]: 441 mSDtfsCounter, 3953 mSDsluCounter, 2722 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3953 SdHoareTripleChecker+Valid, 3163 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 04:01:47,146 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3953 Valid, 3163 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 286 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 04:01:47,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2544 states. [2024-10-14 04:01:47,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2544 to 1390. [2024-10-14 04:01:47,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1390 states, 1389 states have (on average 1.5608351331893449) internal successors, (2168), 1389 states have internal predecessors, (2168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:47,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1390 states to 1390 states and 2168 transitions. [2024-10-14 04:01:47,182 INFO L78 Accepts]: Start accepts. Automaton has 1390 states and 2168 transitions. Word has length 125 [2024-10-14 04:01:47,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:01:47,182 INFO L471 AbstractCegarLoop]: Abstraction has 1390 states and 2168 transitions. [2024-10-14 04:01:47,182 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.5) internal successors, (125), 10 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:47,183 INFO L276 IsEmpty]: Start isEmpty. Operand 1390 states and 2168 transitions. [2024-10-14 04:01:47,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-10-14 04:01:47,184 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:01:47,184 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:01:47,184 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-14 04:01:47,184 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:01:47,185 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:01:47,185 INFO L85 PathProgramCache]: Analyzing trace with hash -489869420, now seen corresponding path program 1 times [2024-10-14 04:01:47,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:01:47,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565994023] [2024-10-14 04:01:47,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:01:47,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:01:47,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:01:47,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:01:47,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:01:47,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565994023] [2024-10-14 04:01:47,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1565994023] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:01:47,589 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:01:47,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-14 04:01:47,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334524562] [2024-10-14 04:01:47,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:01:47,589 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-14 04:01:47,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:01:47,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-14 04:01:47,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-10-14 04:01:47,590 INFO L87 Difference]: Start difference. First operand 1390 states and 2168 transitions. Second operand has 10 states, 10 states have (on average 12.5) internal successors, (125), 10 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:47,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:01:47,955 INFO L93 Difference]: Finished difference Result 2551 states and 4023 transitions. [2024-10-14 04:01:47,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-14 04:01:47,956 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.5) internal successors, (125), 10 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 125 [2024-10-14 04:01:47,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:01:47,959 INFO L225 Difference]: With dead ends: 2551 [2024-10-14 04:01:47,959 INFO L226 Difference]: Without dead ends: 1392 [2024-10-14 04:01:47,960 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=84, Invalid=156, Unknown=0, NotChecked=0, Total=240 [2024-10-14 04:01:47,961 INFO L432 NwaCegarLoop]: 297 mSDtfsCounter, 597 mSDsluCounter, 1304 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 597 SdHoareTripleChecker+Valid, 1601 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 04:01:47,961 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [597 Valid, 1601 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 04:01:47,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1392 states. [2024-10-14 04:01:48,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1392 to 1390. [2024-10-14 04:01:48,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1390 states, 1389 states have (on average 1.5557955363570914) internal successors, (2161), 1389 states have internal predecessors, (2161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:48,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1390 states to 1390 states and 2161 transitions. [2024-10-14 04:01:48,010 INFO L78 Accepts]: Start accepts. Automaton has 1390 states and 2161 transitions. Word has length 125 [2024-10-14 04:01:48,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:01:48,010 INFO L471 AbstractCegarLoop]: Abstraction has 1390 states and 2161 transitions. [2024-10-14 04:01:48,010 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.5) internal successors, (125), 10 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:48,010 INFO L276 IsEmpty]: Start isEmpty. Operand 1390 states and 2161 transitions. [2024-10-14 04:01:48,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-10-14 04:01:48,011 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:01:48,011 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:01:48,012 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-14 04:01:48,012 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:01:48,012 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:01:48,012 INFO L85 PathProgramCache]: Analyzing trace with hash -770172939, now seen corresponding path program 1 times [2024-10-14 04:01:48,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:01:48,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013487692] [2024-10-14 04:01:48,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:01:48,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:01:48,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:01:48,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:01:48,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:01:48,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013487692] [2024-10-14 04:01:48,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013487692] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:01:48,069 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:01:48,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 04:01:48,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516097974] [2024-10-14 04:01:48,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:01:48,070 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 04:01:48,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:01:48,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 04:01:48,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 04:01:48,070 INFO L87 Difference]: Start difference. First operand 1390 states and 2161 transitions. Second operand has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:48,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:01:48,103 INFO L93 Difference]: Finished difference Result 3624 states and 5714 transitions. [2024-10-14 04:01:48,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 04:01:48,103 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 125 [2024-10-14 04:01:48,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:01:48,108 INFO L225 Difference]: With dead ends: 3624 [2024-10-14 04:01:48,109 INFO L226 Difference]: Without dead ends: 2465 [2024-10-14 04:01:48,110 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 04:01:48,110 INFO L432 NwaCegarLoop]: 435 mSDtfsCounter, 131 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 731 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 04:01:48,110 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 731 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 04:01:48,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2465 states. [2024-10-14 04:01:48,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2465 to 2437. [2024-10-14 04:01:48,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2437 states, 2436 states have (on average 1.5603448275862069) internal successors, (3801), 2436 states have internal predecessors, (3801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:48,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2437 states to 2437 states and 3801 transitions. [2024-10-14 04:01:48,140 INFO L78 Accepts]: Start accepts. Automaton has 2437 states and 3801 transitions. Word has length 125 [2024-10-14 04:01:48,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:01:48,140 INFO L471 AbstractCegarLoop]: Abstraction has 2437 states and 3801 transitions. [2024-10-14 04:01:48,140 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:48,140 INFO L276 IsEmpty]: Start isEmpty. Operand 2437 states and 3801 transitions. [2024-10-14 04:01:48,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-10-14 04:01:48,141 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:01:48,141 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:01:48,141 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-14 04:01:48,142 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:01:48,142 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:01:48,142 INFO L85 PathProgramCache]: Analyzing trace with hash 1385111397, now seen corresponding path program 1 times [2024-10-14 04:01:48,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:01:48,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125606710] [2024-10-14 04:01:48,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:01:48,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:01:48,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:01:48,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:01:48,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:01:48,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125606710] [2024-10-14 04:01:48,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2125606710] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:01:48,328 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:01:48,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-14 04:01:48,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388000623] [2024-10-14 04:01:48,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:01:48,329 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-14 04:01:48,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:01:48,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-14 04:01:48,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-10-14 04:01:48,330 INFO L87 Difference]: Start difference. First operand 2437 states and 3801 transitions. Second operand has 10 states, 10 states have (on average 12.5) internal successors, (125), 10 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:48,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:01:48,632 INFO L93 Difference]: Finished difference Result 5238 states and 8224 transitions. [2024-10-14 04:01:48,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-14 04:01:48,632 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.5) internal successors, (125), 10 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 125 [2024-10-14 04:01:48,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:01:48,656 INFO L225 Difference]: With dead ends: 5238 [2024-10-14 04:01:48,660 INFO L226 Difference]: Without dead ends: 4897 [2024-10-14 04:01:48,663 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-10-14 04:01:48,663 INFO L432 NwaCegarLoop]: 569 mSDtfsCounter, 2947 mSDsluCounter, 3087 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2947 SdHoareTripleChecker+Valid, 3656 SdHoareTripleChecker+Invalid, 342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 04:01:48,663 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2947 Valid, 3656 Invalid, 342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 341 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 04:01:48,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4897 states. [2024-10-14 04:01:48,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4897 to 2782. [2024-10-14 04:01:48,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2782 states, 2781 states have (on average 1.56274721323265) internal successors, (4346), 2781 states have internal predecessors, (4346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:48,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2782 states to 2782 states and 4346 transitions. [2024-10-14 04:01:48,745 INFO L78 Accepts]: Start accepts. Automaton has 2782 states and 4346 transitions. Word has length 125 [2024-10-14 04:01:48,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:01:48,745 INFO L471 AbstractCegarLoop]: Abstraction has 2782 states and 4346 transitions. [2024-10-14 04:01:48,745 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.5) internal successors, (125), 10 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:48,746 INFO L276 IsEmpty]: Start isEmpty. Operand 2782 states and 4346 transitions. [2024-10-14 04:01:48,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-10-14 04:01:48,746 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:01:48,747 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:01:48,747 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-14 04:01:48,747 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:01:48,747 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:01:48,747 INFO L85 PathProgramCache]: Analyzing trace with hash -1024323785, now seen corresponding path program 1 times [2024-10-14 04:01:48,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:01:48,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232381279] [2024-10-14 04:01:48,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:01:48,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:01:48,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:01:48,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:01:48,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:01:48,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232381279] [2024-10-14 04:01:48,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [232381279] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:01:48,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:01:48,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-14 04:01:48,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809381005] [2024-10-14 04:01:48,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:01:48,975 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-14 04:01:48,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:01:48,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-14 04:01:48,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-10-14 04:01:48,975 INFO L87 Difference]: Start difference. First operand 2782 states and 4346 transitions. Second operand has 10 states, 10 states have (on average 12.5) internal successors, (125), 10 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:49,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:01:49,261 INFO L93 Difference]: Finished difference Result 5583 states and 8769 transitions. [2024-10-14 04:01:49,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-14 04:01:49,261 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.5) internal successors, (125), 10 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 125 [2024-10-14 04:01:49,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:01:49,274 INFO L225 Difference]: With dead ends: 5583 [2024-10-14 04:01:49,274 INFO L226 Difference]: Without dead ends: 5242 [2024-10-14 04:01:49,275 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-10-14 04:01:49,276 INFO L432 NwaCegarLoop]: 577 mSDtfsCounter, 3051 mSDsluCounter, 3854 mSDsCounter, 0 mSdLazyCounter, 357 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3051 SdHoareTripleChecker+Valid, 4431 SdHoareTripleChecker+Invalid, 358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 04:01:49,276 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3051 Valid, 4431 Invalid, 358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 357 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 04:01:49,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5242 states. [2024-10-14 04:01:49,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5242 to 3132. [2024-10-14 04:01:49,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3132 states, 3131 states have (on average 1.5646758224209518) internal successors, (4899), 3131 states have internal predecessors, (4899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:49,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3132 states to 3132 states and 4899 transitions. [2024-10-14 04:01:49,326 INFO L78 Accepts]: Start accepts. Automaton has 3132 states and 4899 transitions. Word has length 125 [2024-10-14 04:01:49,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:01:49,326 INFO L471 AbstractCegarLoop]: Abstraction has 3132 states and 4899 transitions. [2024-10-14 04:01:49,327 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.5) internal successors, (125), 10 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:49,327 INFO L276 IsEmpty]: Start isEmpty. Operand 3132 states and 4899 transitions. [2024-10-14 04:01:49,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-10-14 04:01:49,328 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:01:49,328 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:01:49,328 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-14 04:01:49,328 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:01:49,329 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:01:49,329 INFO L85 PathProgramCache]: Analyzing trace with hash 2113520829, now seen corresponding path program 1 times [2024-10-14 04:01:49,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:01:49,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836952422] [2024-10-14 04:01:49,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:01:49,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:01:49,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:01:49,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:01:49,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:01:49,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836952422] [2024-10-14 04:01:49,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [836952422] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:01:49,572 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:01:49,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-14 04:01:49,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633220397] [2024-10-14 04:01:49,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:01:49,573 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-14 04:01:49,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:01:49,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-14 04:01:49,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-10-14 04:01:49,573 INFO L87 Difference]: Start difference. First operand 3132 states and 4899 transitions. Second operand has 10 states, 10 states have (on average 12.5) internal successors, (125), 10 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:49,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:01:49,889 INFO L93 Difference]: Finished difference Result 5943 states and 9338 transitions. [2024-10-14 04:01:49,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-14 04:01:49,889 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.5) internal successors, (125), 10 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 125 [2024-10-14 04:01:49,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:01:49,903 INFO L225 Difference]: With dead ends: 5943 [2024-10-14 04:01:49,904 INFO L226 Difference]: Without dead ends: 5602 [2024-10-14 04:01:49,906 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-10-14 04:01:49,906 INFO L432 NwaCegarLoop]: 484 mSDtfsCounter, 3388 mSDsluCounter, 4153 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3388 SdHoareTripleChecker+Valid, 4637 SdHoareTripleChecker+Invalid, 353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 04:01:49,907 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3388 Valid, 4637 Invalid, 353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 04:01:49,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5602 states. [2024-10-14 04:01:49,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5602 to 3497. [2024-10-14 04:01:49,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3497 states, 3496 states have (on average 1.5663615560640731) internal successors, (5476), 3496 states have internal predecessors, (5476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:49,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3497 states to 3497 states and 5476 transitions. [2024-10-14 04:01:49,956 INFO L78 Accepts]: Start accepts. Automaton has 3497 states and 5476 transitions. Word has length 125 [2024-10-14 04:01:49,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:01:49,957 INFO L471 AbstractCegarLoop]: Abstraction has 3497 states and 5476 transitions. [2024-10-14 04:01:49,957 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.5) internal successors, (125), 10 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:49,957 INFO L276 IsEmpty]: Start isEmpty. Operand 3497 states and 5476 transitions. [2024-10-14 04:01:49,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-10-14 04:01:49,958 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:01:49,958 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:01:49,958 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-14 04:01:49,958 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:01:49,959 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:01:49,959 INFO L85 PathProgramCache]: Analyzing trace with hash 1992008050, now seen corresponding path program 1 times [2024-10-14 04:01:49,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:01:49,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467818259] [2024-10-14 04:01:49,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:01:49,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:01:49,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:01:50,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:01:50,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:01:50,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467818259] [2024-10-14 04:01:50,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1467818259] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:01:50,105 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:01:50,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 04:01:50,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068971689] [2024-10-14 04:01:50,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:01:50,105 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 04:01:50,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:01:50,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 04:01:50,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 04:01:50,106 INFO L87 Difference]: Start difference. First operand 3497 states and 5476 transitions. Second operand has 5 states, 5 states have (on average 25.2) internal successors, (126), 4 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:50,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:01:50,261 INFO L93 Difference]: Finished difference Result 6912 states and 10865 transitions. [2024-10-14 04:01:50,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 04:01:50,261 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.2) internal successors, (126), 4 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 126 [2024-10-14 04:01:50,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:01:50,265 INFO L225 Difference]: With dead ends: 6912 [2024-10-14 04:01:50,266 INFO L226 Difference]: Without dead ends: 3497 [2024-10-14 04:01:50,268 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:01:50,269 INFO L432 NwaCegarLoop]: 167 mSDtfsCounter, 808 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 808 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 04:01:50,269 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [808 Valid, 203 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 04:01:50,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3497 states. [2024-10-14 04:01:50,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3497 to 3497. [2024-10-14 04:01:50,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3497 states, 3496 states have (on average 1.5552059496567505) internal successors, (5437), 3496 states have internal predecessors, (5437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:50,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3497 states to 3497 states and 5437 transitions. [2024-10-14 04:01:50,304 INFO L78 Accepts]: Start accepts. Automaton has 3497 states and 5437 transitions. Word has length 126 [2024-10-14 04:01:50,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:01:50,304 INFO L471 AbstractCegarLoop]: Abstraction has 3497 states and 5437 transitions. [2024-10-14 04:01:50,304 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.2) internal successors, (126), 4 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:50,305 INFO L276 IsEmpty]: Start isEmpty. Operand 3497 states and 5437 transitions. [2024-10-14 04:01:50,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-10-14 04:01:50,306 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:01:50,306 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:01:50,306 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-14 04:01:50,307 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:01:50,307 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:01:50,307 INFO L85 PathProgramCache]: Analyzing trace with hash 785268394, now seen corresponding path program 1 times [2024-10-14 04:01:50,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:01:50,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320323661] [2024-10-14 04:01:50,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:01:50,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:01:50,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:01:50,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:01:50,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:01:50,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320323661] [2024-10-14 04:01:50,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1320323661] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:01:50,462 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:01:50,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 04:01:50,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183468370] [2024-10-14 04:01:50,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:01:50,462 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 04:01:50,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:01:50,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 04:01:50,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 04:01:50,464 INFO L87 Difference]: Start difference. First operand 3497 states and 5437 transitions. Second operand has 5 states, 5 states have (on average 25.4) internal successors, (127), 4 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:50,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:01:50,629 INFO L93 Difference]: Finished difference Result 6920 states and 10797 transitions. [2024-10-14 04:01:50,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 04:01:50,630 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.4) internal successors, (127), 4 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 127 [2024-10-14 04:01:50,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:01:50,634 INFO L225 Difference]: With dead ends: 6920 [2024-10-14 04:01:50,635 INFO L226 Difference]: Without dead ends: 3497 [2024-10-14 04:01:50,638 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:01:50,639 INFO L432 NwaCegarLoop]: 167 mSDtfsCounter, 824 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 824 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 04:01:50,639 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [824 Valid, 187 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 04:01:50,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3497 states. [2024-10-14 04:01:50,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3497 to 3497. [2024-10-14 04:01:50,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3497 states, 3496 states have (on average 1.544050343249428) internal successors, (5398), 3496 states have internal predecessors, (5398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:50,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3497 states to 3497 states and 5398 transitions. [2024-10-14 04:01:50,694 INFO L78 Accepts]: Start accepts. Automaton has 3497 states and 5398 transitions. Word has length 127 [2024-10-14 04:01:50,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:01:50,695 INFO L471 AbstractCegarLoop]: Abstraction has 3497 states and 5398 transitions. [2024-10-14 04:01:50,695 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.4) internal successors, (127), 4 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:50,695 INFO L276 IsEmpty]: Start isEmpty. Operand 3497 states and 5398 transitions. [2024-10-14 04:01:50,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-10-14 04:01:50,697 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:01:50,697 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:01:50,697 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-14 04:01:50,697 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:01:50,697 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:01:50,698 INFO L85 PathProgramCache]: Analyzing trace with hash -883491726, now seen corresponding path program 1 times [2024-10-14 04:01:50,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:01:50,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991463423] [2024-10-14 04:01:50,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:01:50,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:01:50,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:01:50,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:01:50,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:01:50,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991463423] [2024-10-14 04:01:50,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1991463423] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:01:50,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:01:50,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 04:01:50,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727285960] [2024-10-14 04:01:50,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:01:50,850 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 04:01:50,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:01:50,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 04:01:50,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 04:01:50,851 INFO L87 Difference]: Start difference. First operand 3497 states and 5398 transitions. Second operand has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:51,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:01:51,000 INFO L93 Difference]: Finished difference Result 6916 states and 10715 transitions. [2024-10-14 04:01:51,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 04:01:51,001 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 128 [2024-10-14 04:01:51,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:01:51,005 INFO L225 Difference]: With dead ends: 6916 [2024-10-14 04:01:51,005 INFO L226 Difference]: Without dead ends: 3497 [2024-10-14 04:01:51,009 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:01:51,010 INFO L432 NwaCegarLoop]: 167 mSDtfsCounter, 806 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 806 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 04:01:51,010 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [806 Valid, 195 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 04:01:51,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3497 states. [2024-10-14 04:01:51,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3497 to 3497. [2024-10-14 04:01:51,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3497 states, 3496 states have (on average 1.5328947368421053) internal successors, (5359), 3496 states have internal predecessors, (5359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:51,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3497 states to 3497 states and 5359 transitions. [2024-10-14 04:01:51,054 INFO L78 Accepts]: Start accepts. Automaton has 3497 states and 5359 transitions. Word has length 128 [2024-10-14 04:01:51,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:01:51,054 INFO L471 AbstractCegarLoop]: Abstraction has 3497 states and 5359 transitions. [2024-10-14 04:01:51,054 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:51,054 INFO L276 IsEmpty]: Start isEmpty. Operand 3497 states and 5359 transitions. [2024-10-14 04:01:51,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-10-14 04:01:51,055 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:01:51,056 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:01:51,056 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-14 04:01:51,056 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:01:51,056 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:01:51,056 INFO L85 PathProgramCache]: Analyzing trace with hash -386540362, now seen corresponding path program 1 times [2024-10-14 04:01:51,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:01:51,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720198193] [2024-10-14 04:01:51,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:01:51,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:01:51,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:01:51,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:01:51,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:01:51,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720198193] [2024-10-14 04:01:51,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720198193] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:01:51,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:01:51,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 04:01:51,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728562526] [2024-10-14 04:01:51,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:01:51,153 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 04:01:51,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:01:51,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 04:01:51,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 04:01:51,154 INFO L87 Difference]: Start difference. First operand 3497 states and 5359 transitions. Second operand has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:51,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:01:51,293 INFO L93 Difference]: Finished difference Result 6924 states and 10646 transitions. [2024-10-14 04:01:51,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 04:01:51,293 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 129 [2024-10-14 04:01:51,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:01:51,298 INFO L225 Difference]: With dead ends: 6924 [2024-10-14 04:01:51,298 INFO L226 Difference]: Without dead ends: 3497 [2024-10-14 04:01:51,302 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:01:51,303 INFO L432 NwaCegarLoop]: 167 mSDtfsCounter, 823 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 823 SdHoareTripleChecker+Valid, 179 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 04:01:51,303 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [823 Valid, 179 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 04:01:51,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3497 states. [2024-10-14 04:01:51,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3497 to 3497. [2024-10-14 04:01:51,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3497 states, 3496 states have (on average 1.5217391304347827) internal successors, (5320), 3496 states have internal predecessors, (5320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:51,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3497 states to 3497 states and 5320 transitions. [2024-10-14 04:01:51,338 INFO L78 Accepts]: Start accepts. Automaton has 3497 states and 5320 transitions. Word has length 129 [2024-10-14 04:01:51,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:01:51,338 INFO L471 AbstractCegarLoop]: Abstraction has 3497 states and 5320 transitions. [2024-10-14 04:01:51,338 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:51,339 INFO L276 IsEmpty]: Start isEmpty. Operand 3497 states and 5320 transitions. [2024-10-14 04:01:51,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-10-14 04:01:51,340 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:01:51,340 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:01:51,340 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-14 04:01:51,340 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:01:51,340 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:01:51,340 INFO L85 PathProgramCache]: Analyzing trace with hash 1933555338, now seen corresponding path program 1 times [2024-10-14 04:01:51,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:01:51,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921625366] [2024-10-14 04:01:51,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:01:51,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:01:51,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:01:51,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:01:51,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:01:51,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921625366] [2024-10-14 04:01:51,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921625366] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:01:51,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:01:51,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 04:01:51,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183749812] [2024-10-14 04:01:51,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:01:51,439 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 04:01:51,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:01:51,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 04:01:51,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 04:01:51,439 INFO L87 Difference]: Start difference. First operand 3497 states and 5320 transitions. Second operand has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:51,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:01:51,690 INFO L93 Difference]: Finished difference Result 10284 states and 15724 transitions. [2024-10-14 04:01:51,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 04:01:51,691 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2024-10-14 04:01:51,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:01:51,699 INFO L225 Difference]: With dead ends: 10284 [2024-10-14 04:01:51,699 INFO L226 Difference]: Without dead ends: 6853 [2024-10-14 04:01:51,703 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:01:51,704 INFO L432 NwaCegarLoop]: 167 mSDtfsCounter, 1206 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1206 SdHoareTripleChecker+Valid, 272 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 04:01:51,704 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1206 Valid, 272 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 04:01:51,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6853 states. [2024-10-14 04:01:51,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6853 to 6851. [2024-10-14 04:01:51,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6851 states, 6850 states have (on average 1.5227737226277371) internal successors, (10431), 6850 states have internal predecessors, (10431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:51,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6851 states to 6851 states and 10431 transitions. [2024-10-14 04:01:51,774 INFO L78 Accepts]: Start accepts. Automaton has 6851 states and 10431 transitions. Word has length 130 [2024-10-14 04:01:51,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:01:51,774 INFO L471 AbstractCegarLoop]: Abstraction has 6851 states and 10431 transitions. [2024-10-14 04:01:51,774 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:51,774 INFO L276 IsEmpty]: Start isEmpty. Operand 6851 states and 10431 transitions. [2024-10-14 04:01:51,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-10-14 04:01:51,776 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:01:51,776 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:01:51,776 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-14 04:01:51,776 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:01:51,777 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:01:51,777 INFO L85 PathProgramCache]: Analyzing trace with hash -1642385470, now seen corresponding path program 1 times [2024-10-14 04:01:51,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:01:51,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571893585] [2024-10-14 04:01:51,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:01:51,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:01:51,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:01:51,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:01:51,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:01:51,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571893585] [2024-10-14 04:01:51,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1571893585] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:01:51,875 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:01:51,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 04:01:51,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620458214] [2024-10-14 04:01:51,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:01:51,876 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 04:01:51,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:01:51,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 04:01:51,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 04:01:51,876 INFO L87 Difference]: Start difference. First operand 6851 states and 10431 transitions. Second operand has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:52,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:01:52,016 INFO L93 Difference]: Finished difference Result 13612 states and 20770 transitions. [2024-10-14 04:01:52,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 04:01:52,017 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 131 [2024-10-14 04:01:52,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:01:52,025 INFO L225 Difference]: With dead ends: 13612 [2024-10-14 04:01:52,025 INFO L226 Difference]: Without dead ends: 6851 [2024-10-14 04:01:52,031 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:01:52,031 INFO L432 NwaCegarLoop]: 167 mSDtfsCounter, 754 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 754 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 04:01:52,032 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [754 Valid, 219 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 04:01:52,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6851 states. [2024-10-14 04:01:52,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6851 to 6851. [2024-10-14 04:01:52,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6851 states, 6850 states have (on average 1.5115328467153284) internal successors, (10354), 6850 states have internal predecessors, (10354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:52,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6851 states to 6851 states and 10354 transitions. [2024-10-14 04:01:52,093 INFO L78 Accepts]: Start accepts. Automaton has 6851 states and 10354 transitions. Word has length 131 [2024-10-14 04:01:52,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:01:52,093 INFO L471 AbstractCegarLoop]: Abstraction has 6851 states and 10354 transitions. [2024-10-14 04:01:52,093 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:52,093 INFO L276 IsEmpty]: Start isEmpty. Operand 6851 states and 10354 transitions. [2024-10-14 04:01:52,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-10-14 04:01:52,095 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:01:52,095 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:01:52,095 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-14 04:01:52,095 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:01:52,095 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:01:52,095 INFO L85 PathProgramCache]: Analyzing trace with hash -2090774950, now seen corresponding path program 1 times [2024-10-14 04:01:52,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:01:52,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865123381] [2024-10-14 04:01:52,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:01:52,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:01:52,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:01:52,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:01:52,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:01:52,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865123381] [2024-10-14 04:01:52,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1865123381] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:01:52,200 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:01:52,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 04:01:52,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114956353] [2024-10-14 04:01:52,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:01:52,201 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 04:01:52,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:01:52,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 04:01:52,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 04:01:52,201 INFO L87 Difference]: Start difference. First operand 6851 states and 10354 transitions. Second operand has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:52,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:01:52,344 INFO L93 Difference]: Finished difference Result 13616 states and 20621 transitions. [2024-10-14 04:01:52,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 04:01:52,344 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 132 [2024-10-14 04:01:52,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:01:52,353 INFO L225 Difference]: With dead ends: 13616 [2024-10-14 04:01:52,353 INFO L226 Difference]: Without dead ends: 6851 [2024-10-14 04:01:52,360 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:01:52,361 INFO L432 NwaCegarLoop]: 167 mSDtfsCounter, 759 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 759 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 04:01:52,361 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [759 Valid, 211 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 04:01:52,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6851 states. [2024-10-14 04:01:52,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6851 to 6851. [2024-10-14 04:01:52,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6851 states, 6850 states have (on average 1.5002919708029196) internal successors, (10277), 6850 states have internal predecessors, (10277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:52,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6851 states to 6851 states and 10277 transitions. [2024-10-14 04:01:52,432 INFO L78 Accepts]: Start accepts. Automaton has 6851 states and 10277 transitions. Word has length 132 [2024-10-14 04:01:52,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:01:52,432 INFO L471 AbstractCegarLoop]: Abstraction has 6851 states and 10277 transitions. [2024-10-14 04:01:52,433 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:52,433 INFO L276 IsEmpty]: Start isEmpty. Operand 6851 states and 10277 transitions. [2024-10-14 04:01:52,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-10-14 04:01:52,434 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:01:52,434 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:01:52,434 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-14 04:01:52,435 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:01:52,435 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:01:52,435 INFO L85 PathProgramCache]: Analyzing trace with hash 81654734, now seen corresponding path program 1 times [2024-10-14 04:01:52,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:01:52,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867961184] [2024-10-14 04:01:52,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:01:52,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:01:52,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:01:52,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:01:52,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:01:52,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867961184] [2024-10-14 04:01:52,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1867961184] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:01:52,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:01:52,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 04:01:52,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032662091] [2024-10-14 04:01:52,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:01:52,640 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 04:01:52,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:01:52,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 04:01:52,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 04:01:52,641 INFO L87 Difference]: Start difference. First operand 6851 states and 10277 transitions. Second operand has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:52,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:01:52,816 INFO L93 Difference]: Finished difference Result 13608 states and 20459 transitions. [2024-10-14 04:01:52,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 04:01:52,817 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 133 [2024-10-14 04:01:52,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:01:52,825 INFO L225 Difference]: With dead ends: 13608 [2024-10-14 04:01:52,826 INFO L226 Difference]: Without dead ends: 6851 [2024-10-14 04:01:52,831 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:01:52,832 INFO L432 NwaCegarLoop]: 171 mSDtfsCounter, 730 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 730 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 04:01:52,832 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [730 Valid, 231 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 04:01:52,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6851 states. [2024-10-14 04:01:52,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6851 to 6851. [2024-10-14 04:01:52,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6851 states, 6850 states have (on average 1.489051094890511) internal successors, (10200), 6850 states have internal predecessors, (10200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:52,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6851 states to 6851 states and 10200 transitions. [2024-10-14 04:01:52,892 INFO L78 Accepts]: Start accepts. Automaton has 6851 states and 10200 transitions. Word has length 133 [2024-10-14 04:01:52,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:01:52,892 INFO L471 AbstractCegarLoop]: Abstraction has 6851 states and 10200 transitions. [2024-10-14 04:01:52,892 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:52,892 INFO L276 IsEmpty]: Start isEmpty. Operand 6851 states and 10200 transitions. [2024-10-14 04:01:52,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-10-14 04:01:52,894 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:01:52,894 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:01:52,894 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-14 04:01:52,894 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:01:52,894 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:01:52,894 INFO L85 PathProgramCache]: Analyzing trace with hash 2131993922, now seen corresponding path program 1 times [2024-10-14 04:01:52,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:01:52,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332956843] [2024-10-14 04:01:52,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:01:52,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:01:52,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:01:53,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:01:53,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:01:53,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332956843] [2024-10-14 04:01:53,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [332956843] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:01:53,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:01:53,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 04:01:53,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018425607] [2024-10-14 04:01:53,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:01:53,109 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 04:01:53,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:01:53,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 04:01:53,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 04:01:53,110 INFO L87 Difference]: Start difference. First operand 6851 states and 10200 transitions. Second operand has 5 states, 5 states have (on average 26.8) internal successors, (134), 5 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:53,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:01:53,145 INFO L93 Difference]: Finished difference Result 6889 states and 10255 transitions. [2024-10-14 04:01:53,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 04:01:53,146 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 5 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2024-10-14 04:01:53,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:01:53,157 INFO L225 Difference]: With dead ends: 6889 [2024-10-14 04:01:53,157 INFO L226 Difference]: Without dead ends: 6887 [2024-10-14 04:01:53,160 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 04:01:53,161 INFO L432 NwaCegarLoop]: 291 mSDtfsCounter, 0 mSDsluCounter, 865 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1156 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 04:01:53,161 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1156 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 04:01:53,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6887 states. [2024-10-14 04:01:53,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6887 to 6887. [2024-10-14 04:01:53,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6887 states, 6886 states have (on average 1.4835898925355795) internal successors, (10216), 6886 states have internal predecessors, (10216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:53,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6887 states to 6887 states and 10216 transitions. [2024-10-14 04:01:53,288 INFO L78 Accepts]: Start accepts. Automaton has 6887 states and 10216 transitions. Word has length 134 [2024-10-14 04:01:53,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:01:53,288 INFO L471 AbstractCegarLoop]: Abstraction has 6887 states and 10216 transitions. [2024-10-14 04:01:53,288 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 5 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:53,288 INFO L276 IsEmpty]: Start isEmpty. Operand 6887 states and 10216 transitions. [2024-10-14 04:01:53,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-10-14 04:01:53,290 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:01:53,290 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:01:53,290 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-14 04:01:53,290 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:01:53,290 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:01:53,291 INFO L85 PathProgramCache]: Analyzing trace with hash -1990664578, now seen corresponding path program 1 times [2024-10-14 04:01:53,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:01:53,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616859733] [2024-10-14 04:01:53,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:01:53,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:01:53,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:01:54,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:01:54,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:01:54,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616859733] [2024-10-14 04:01:54,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616859733] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:01:54,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:01:54,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-14 04:01:54,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498350872] [2024-10-14 04:01:54,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:01:54,007 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-14 04:01:54,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:01:54,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-14 04:01:54,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-10-14 04:01:54,009 INFO L87 Difference]: Start difference. First operand 6887 states and 10216 transitions. Second operand has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:54,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:01:54,703 INFO L93 Difference]: Finished difference Result 20389 states and 30244 transitions. [2024-10-14 04:01:54,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-14 04:01:54,703 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2024-10-14 04:01:54,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:01:54,721 INFO L225 Difference]: With dead ends: 20389 [2024-10-14 04:01:54,722 INFO L226 Difference]: Without dead ends: 13729 [2024-10-14 04:01:54,730 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=128, Invalid=424, Unknown=0, NotChecked=0, Total=552 [2024-10-14 04:01:54,730 INFO L432 NwaCegarLoop]: 162 mSDtfsCounter, 883 mSDsluCounter, 825 mSDsCounter, 0 mSdLazyCounter, 907 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 883 SdHoareTripleChecker+Valid, 987 SdHoareTripleChecker+Invalid, 913 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 907 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-14 04:01:54,731 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [883 Valid, 987 Invalid, 913 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 907 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-14 04:01:54,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13729 states. [2024-10-14 04:01:54,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13729 to 6887. [2024-10-14 04:01:54,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6887 states, 6886 states have (on average 1.4822828928260239) internal successors, (10207), 6886 states have internal predecessors, (10207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:55,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6887 states to 6887 states and 10207 transitions. [2024-10-14 04:01:55,076 INFO L78 Accepts]: Start accepts. Automaton has 6887 states and 10207 transitions. Word has length 134 [2024-10-14 04:01:55,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:01:55,076 INFO L471 AbstractCegarLoop]: Abstraction has 6887 states and 10207 transitions. [2024-10-14 04:01:55,076 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:55,076 INFO L276 IsEmpty]: Start isEmpty. Operand 6887 states and 10207 transitions. [2024-10-14 04:01:55,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-10-14 04:01:55,078 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:01:55,078 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:01:55,078 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-14 04:01:55,078 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:01:55,083 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:01:55,083 INFO L85 PathProgramCache]: Analyzing trace with hash 461092759, now seen corresponding path program 1 times [2024-10-14 04:01:55,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:01:55,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604589392] [2024-10-14 04:01:55,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:01:55,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:01:55,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:01:55,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:01:55,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:01:55,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604589392] [2024-10-14 04:01:55,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [604589392] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:01:55,647 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:01:55,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-14 04:01:55,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042173141] [2024-10-14 04:01:55,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:01:55,648 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-14 04:01:55,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:01:55,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-14 04:01:55,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2024-10-14 04:01:55,649 INFO L87 Difference]: Start difference. First operand 6887 states and 10207 transitions. Second operand has 13 states, 13 states have (on average 10.384615384615385) internal successors, (135), 12 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:56,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:01:56,473 INFO L93 Difference]: Finished difference Result 20580 states and 30383 transitions. [2024-10-14 04:01:56,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-14 04:01:56,474 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.384615384615385) internal successors, (135), 12 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2024-10-14 04:01:56,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:01:56,496 INFO L225 Difference]: With dead ends: 20580 [2024-10-14 04:01:56,496 INFO L226 Difference]: Without dead ends: 14032 [2024-10-14 04:01:56,506 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=151, Invalid=499, Unknown=0, NotChecked=0, Total=650 [2024-10-14 04:01:56,507 INFO L432 NwaCegarLoop]: 158 mSDtfsCounter, 1349 mSDsluCounter, 934 mSDsCounter, 0 mSdLazyCounter, 1067 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1349 SdHoareTripleChecker+Valid, 1092 SdHoareTripleChecker+Invalid, 1076 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1067 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-14 04:01:56,507 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1349 Valid, 1092 Invalid, 1076 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1067 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-14 04:01:56,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14032 states. [2024-10-14 04:01:56,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14032 to 7010. [2024-10-14 04:01:56,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7010 states, 7009 states have (on average 1.480667712940505) internal successors, (10378), 7009 states have internal predecessors, (10378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:56,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7010 states to 7010 states and 10378 transitions. [2024-10-14 04:01:56,650 INFO L78 Accepts]: Start accepts. Automaton has 7010 states and 10378 transitions. Word has length 135 [2024-10-14 04:01:56,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:01:56,650 INFO L471 AbstractCegarLoop]: Abstraction has 7010 states and 10378 transitions. [2024-10-14 04:01:56,650 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.384615384615385) internal successors, (135), 12 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:56,650 INFO L276 IsEmpty]: Start isEmpty. Operand 7010 states and 10378 transitions. [2024-10-14 04:01:56,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-10-14 04:01:56,652 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:01:56,652 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:01:56,652 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-10-14 04:01:56,652 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:01:56,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:01:56,653 INFO L85 PathProgramCache]: Analyzing trace with hash 1675450013, now seen corresponding path program 1 times [2024-10-14 04:01:56,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:01:56,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18591600] [2024-10-14 04:01:56,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:01:56,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:01:56,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:01:57,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:01:57,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:01:57,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18591600] [2024-10-14 04:01:57,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [18591600] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:01:57,075 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:01:57,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-14 04:01:57,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278326266] [2024-10-14 04:01:57,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:01:57,076 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-14 04:01:57,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:01:57,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-14 04:01:57,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-10-14 04:01:57,077 INFO L87 Difference]: Start difference. First operand 7010 states and 10378 transitions. Second operand has 12 states, 12 states have (on average 11.25) internal successors, (135), 11 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:57,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:01:57,844 INFO L93 Difference]: Finished difference Result 20629 states and 30562 transitions. [2024-10-14 04:01:57,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-14 04:01:57,845 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.25) internal successors, (135), 11 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2024-10-14 04:01:57,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:01:57,860 INFO L225 Difference]: With dead ends: 20629 [2024-10-14 04:01:57,860 INFO L226 Difference]: Without dead ends: 13867 [2024-10-14 04:01:57,864 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=128, Invalid=424, Unknown=0, NotChecked=0, Total=552 [2024-10-14 04:01:57,865 INFO L432 NwaCegarLoop]: 162 mSDtfsCounter, 1500 mSDsluCounter, 731 mSDsCounter, 0 mSdLazyCounter, 810 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1500 SdHoareTripleChecker+Valid, 893 SdHoareTripleChecker+Invalid, 819 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 810 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-14 04:01:57,865 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1500 Valid, 893 Invalid, 819 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 810 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-14 04:01:57,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13867 states. [2024-10-14 04:01:57,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13867 to 7010. [2024-10-14 04:01:57,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7010 states, 7009 states have (on average 1.4793836495933799) internal successors, (10369), 7009 states have internal predecessors, (10369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:57,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7010 states to 7010 states and 10369 transitions. [2024-10-14 04:01:57,944 INFO L78 Accepts]: Start accepts. Automaton has 7010 states and 10369 transitions. Word has length 135 [2024-10-14 04:01:57,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:01:57,944 INFO L471 AbstractCegarLoop]: Abstraction has 7010 states and 10369 transitions. [2024-10-14 04:01:57,945 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.25) internal successors, (135), 11 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:57,945 INFO L276 IsEmpty]: Start isEmpty. Operand 7010 states and 10369 transitions. [2024-10-14 04:01:57,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-10-14 04:01:57,946 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:01:57,946 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:01:57,946 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-10-14 04:01:57,947 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:01:57,947 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:01:57,947 INFO L85 PathProgramCache]: Analyzing trace with hash 47560194, now seen corresponding path program 1 times [2024-10-14 04:01:57,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:01:57,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898280927] [2024-10-14 04:01:57,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:01:57,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:01:57,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:01:58,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:01:58,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:01:58,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898280927] [2024-10-14 04:01:58,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898280927] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:01:58,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:01:58,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-14 04:01:58,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534700552] [2024-10-14 04:01:58,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:01:58,337 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-14 04:01:58,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:01:58,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-14 04:01:58,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-10-14 04:01:58,338 INFO L87 Difference]: Start difference. First operand 7010 states and 10369 transitions. Second operand has 12 states, 12 states have (on average 11.333333333333334) internal successors, (136), 11 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:59,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:01:59,013 INFO L93 Difference]: Finished difference Result 20393 states and 30158 transitions. [2024-10-14 04:01:59,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-14 04:01:59,014 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.333333333333334) internal successors, (136), 11 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 136 [2024-10-14 04:01:59,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:01:59,029 INFO L225 Difference]: With dead ends: 20393 [2024-10-14 04:01:59,029 INFO L226 Difference]: Without dead ends: 13913 [2024-10-14 04:01:59,038 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=128, Invalid=424, Unknown=0, NotChecked=0, Total=552 [2024-10-14 04:01:59,039 INFO L432 NwaCegarLoop]: 162 mSDtfsCounter, 1236 mSDsluCounter, 901 mSDsCounter, 0 mSdLazyCounter, 978 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1236 SdHoareTripleChecker+Valid, 1063 SdHoareTripleChecker+Invalid, 985 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 978 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-14 04:01:59,039 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1236 Valid, 1063 Invalid, 985 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 978 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-14 04:01:59,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13913 states. [2024-10-14 04:01:59,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13913 to 7061. [2024-10-14 04:01:59,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7061 states, 7060 states have (on average 1.478328611898017) internal successors, (10437), 7060 states have internal predecessors, (10437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:59,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7061 states to 7061 states and 10437 transitions. [2024-10-14 04:01:59,136 INFO L78 Accepts]: Start accepts. Automaton has 7061 states and 10437 transitions. Word has length 136 [2024-10-14 04:01:59,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:01:59,136 INFO L471 AbstractCegarLoop]: Abstraction has 7061 states and 10437 transitions. [2024-10-14 04:01:59,136 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.333333333333334) internal successors, (136), 11 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:59,136 INFO L276 IsEmpty]: Start isEmpty. Operand 7061 states and 10437 transitions. [2024-10-14 04:01:59,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-10-14 04:01:59,138 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:01:59,138 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:01:59,138 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-10-14 04:01:59,138 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:01:59,139 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:01:59,139 INFO L85 PathProgramCache]: Analyzing trace with hash -804236499, now seen corresponding path program 1 times [2024-10-14 04:01:59,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:01:59,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504454498] [2024-10-14 04:01:59,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:01:59,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:01:59,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:01:59,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:01:59,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:01:59,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504454498] [2024-10-14 04:01:59,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504454498] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:01:59,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:01:59,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 04:01:59,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238002374] [2024-10-14 04:01:59,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:01:59,220 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 04:01:59,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:01:59,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 04:01:59,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 04:01:59,221 INFO L87 Difference]: Start difference. First operand 7061 states and 10437 transitions. Second operand has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:59,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:01:59,265 INFO L93 Difference]: Finished difference Result 19717 states and 29327 transitions. [2024-10-14 04:01:59,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 04:01:59,266 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2024-10-14 04:01:59,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:01:59,278 INFO L225 Difference]: With dead ends: 19717 [2024-10-14 04:01:59,278 INFO L226 Difference]: Without dead ends: 13237 [2024-10-14 04:01:59,286 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 04:01:59,286 INFO L432 NwaCegarLoop]: 415 mSDtfsCounter, 158 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 640 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 04:01:59,289 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 640 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 04:01:59,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13237 states. [2024-10-14 04:01:59,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13237 to 12931. [2024-10-14 04:01:59,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12931 states, 12930 states have (on average 1.4745552977571539) internal successors, (19066), 12930 states have internal predecessors, (19066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:59,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12931 states to 12931 states and 19066 transitions. [2024-10-14 04:01:59,423 INFO L78 Accepts]: Start accepts. Automaton has 12931 states and 19066 transitions. Word has length 137 [2024-10-14 04:01:59,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:01:59,424 INFO L471 AbstractCegarLoop]: Abstraction has 12931 states and 19066 transitions. [2024-10-14 04:01:59,424 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:59,424 INFO L276 IsEmpty]: Start isEmpty. Operand 12931 states and 19066 transitions. [2024-10-14 04:01:59,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-10-14 04:01:59,426 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:01:59,426 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:01:59,426 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-10-14 04:01:59,426 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:01:59,427 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:01:59,427 INFO L85 PathProgramCache]: Analyzing trace with hash -919657171, now seen corresponding path program 1 times [2024-10-14 04:01:59,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:01:59,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763762631] [2024-10-14 04:01:59,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:01:59,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:01:59,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:02:00,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:02:00,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:02:00,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763762631] [2024-10-14 04:02:00,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763762631] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:02:00,087 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:02:00,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-14 04:02:00,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056515161] [2024-10-14 04:02:00,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:02:00,088 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-14 04:02:00,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:02:00,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-14 04:02:00,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-10-14 04:02:00,089 INFO L87 Difference]: Start difference. First operand 12931 states and 19066 transitions. Second operand has 11 states, 11 states have (on average 12.454545454545455) internal successors, (137), 10 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:02:00,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:02:00,940 INFO L93 Difference]: Finished difference Result 37854 states and 55954 transitions. [2024-10-14 04:02:00,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-14 04:02:00,941 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.454545454545455) internal successors, (137), 10 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2024-10-14 04:02:00,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:02:00,971 INFO L225 Difference]: With dead ends: 37854 [2024-10-14 04:02:00,971 INFO L226 Difference]: Without dead ends: 25504 [2024-10-14 04:02:00,986 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=138, Invalid=324, Unknown=0, NotChecked=0, Total=462 [2024-10-14 04:02:00,987 INFO L432 NwaCegarLoop]: 241 mSDtfsCounter, 1307 mSDsluCounter, 1375 mSDsCounter, 0 mSdLazyCounter, 1126 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1307 SdHoareTripleChecker+Valid, 1616 SdHoareTripleChecker+Invalid, 1137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-14 04:02:00,987 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1307 Valid, 1616 Invalid, 1137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1126 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-14 04:02:01,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25504 states. [2024-10-14 04:02:01,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25504 to 13154. [2024-10-14 04:02:01,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13154 states, 13153 states have (on average 1.473124002128792) internal successors, (19376), 13153 states have internal predecessors, (19376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:02:01,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13154 states to 13154 states and 19376 transitions. [2024-10-14 04:02:01,242 INFO L78 Accepts]: Start accepts. Automaton has 13154 states and 19376 transitions. Word has length 137 [2024-10-14 04:02:01,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:02:01,244 INFO L471 AbstractCegarLoop]: Abstraction has 13154 states and 19376 transitions. [2024-10-14 04:02:01,244 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.454545454545455) internal successors, (137), 10 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:02:01,244 INFO L276 IsEmpty]: Start isEmpty. Operand 13154 states and 19376 transitions. [2024-10-14 04:02:01,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-10-14 04:02:01,249 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:02:01,249 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:02:01,249 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-10-14 04:02:01,249 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:02:01,249 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:02:01,249 INFO L85 PathProgramCache]: Analyzing trace with hash 194326099, now seen corresponding path program 1 times [2024-10-14 04:02:01,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:02:01,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593702118] [2024-10-14 04:02:01,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:02:01,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:02:01,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:02:01,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:02:01,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:02:01,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593702118] [2024-10-14 04:02:01,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593702118] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:02:01,787 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:02:01,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-14 04:02:01,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222303349] [2024-10-14 04:02:01,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:02:01,788 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-14 04:02:01,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:02:01,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-14 04:02:01,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-10-14 04:02:01,789 INFO L87 Difference]: Start difference. First operand 13154 states and 19376 transitions. Second operand has 11 states, 11 states have (on average 12.545454545454545) internal successors, (138), 10 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:02:02,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:02:02,933 INFO L93 Difference]: Finished difference Result 39419 states and 57962 transitions. [2024-10-14 04:02:02,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-10-14 04:02:02,934 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.545454545454545) internal successors, (138), 10 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 138 [2024-10-14 04:02:02,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:02:02,961 INFO L225 Difference]: With dead ends: 39419 [2024-10-14 04:02:02,961 INFO L226 Difference]: Without dead ends: 26667 [2024-10-14 04:02:02,975 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=162, Invalid=488, Unknown=0, NotChecked=0, Total=650 [2024-10-14 04:02:02,976 INFO L432 NwaCegarLoop]: 338 mSDtfsCounter, 1178 mSDsluCounter, 1832 mSDsCounter, 0 mSdLazyCounter, 1922 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1178 SdHoareTripleChecker+Valid, 2170 SdHoareTripleChecker+Invalid, 1928 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1922 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-14 04:02:02,976 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1178 Valid, 2170 Invalid, 1928 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1922 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-14 04:02:02,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26667 states. [2024-10-14 04:02:03,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26667 to 12981. [2024-10-14 04:02:03,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12981 states, 12980 states have (on average 1.4742681047765793) internal successors, (19136), 12980 states have internal predecessors, (19136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:02:03,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12981 states to 12981 states and 19136 transitions. [2024-10-14 04:02:03,140 INFO L78 Accepts]: Start accepts. Automaton has 12981 states and 19136 transitions. Word has length 138 [2024-10-14 04:02:03,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:02:03,141 INFO L471 AbstractCegarLoop]: Abstraction has 12981 states and 19136 transitions. [2024-10-14 04:02:03,141 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.545454545454545) internal successors, (138), 10 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:02:03,141 INFO L276 IsEmpty]: Start isEmpty. Operand 12981 states and 19136 transitions. [2024-10-14 04:02:03,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-10-14 04:02:03,143 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:02:03,143 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:02:03,144 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-10-14 04:02:03,144 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:02:03,144 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:02:03,144 INFO L85 PathProgramCache]: Analyzing trace with hash 758154109, now seen corresponding path program 1 times [2024-10-14 04:02:03,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:02:03,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915601884] [2024-10-14 04:02:03,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:02:03,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:02:03,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:02:03,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:02:03,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:02:03,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915601884] [2024-10-14 04:02:03,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915601884] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:02:03,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:02:03,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-14 04:02:03,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70670216] [2024-10-14 04:02:03,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:02:03,416 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-14 04:02:03,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:02:03,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-14 04:02:03,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-14 04:02:03,417 INFO L87 Difference]: Start difference. First operand 12981 states and 19136 transitions. Second operand has 9 states, 9 states have (on average 15.333333333333334) internal successors, (138), 8 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:02:04,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:02:04,074 INFO L93 Difference]: Finished difference Result 38604 states and 56870 transitions. [2024-10-14 04:02:04,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-14 04:02:04,075 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 15.333333333333334) internal successors, (138), 8 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 138 [2024-10-14 04:02:04,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:02:04,106 INFO L225 Difference]: With dead ends: 38604 [2024-10-14 04:02:04,106 INFO L226 Difference]: Without dead ends: 25977 [2024-10-14 04:02:04,122 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=95, Invalid=285, Unknown=0, NotChecked=0, Total=380 [2024-10-14 04:02:04,122 INFO L432 NwaCegarLoop]: 247 mSDtfsCounter, 624 mSDsluCounter, 970 mSDsCounter, 0 mSdLazyCounter, 1065 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 624 SdHoareTripleChecker+Valid, 1217 SdHoareTripleChecker+Invalid, 1068 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1065 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-14 04:02:04,123 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [624 Valid, 1217 Invalid, 1068 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1065 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-14 04:02:04,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25977 states. [2024-10-14 04:02:04,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25977 to 12981. [2024-10-14 04:02:04,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12981 states, 12980 states have (on average 1.473035439137134) internal successors, (19120), 12980 states have internal predecessors, (19120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:02:04,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12981 states to 12981 states and 19120 transitions. [2024-10-14 04:02:04,366 INFO L78 Accepts]: Start accepts. Automaton has 12981 states and 19120 transitions. Word has length 138 [2024-10-14 04:02:04,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:02:04,366 INFO L471 AbstractCegarLoop]: Abstraction has 12981 states and 19120 transitions. [2024-10-14 04:02:04,366 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 15.333333333333334) internal successors, (138), 8 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:02:04,367 INFO L276 IsEmpty]: Start isEmpty. Operand 12981 states and 19120 transitions. [2024-10-14 04:02:04,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-10-14 04:02:04,369 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:02:04,369 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:02:04,369 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-10-14 04:02:04,369 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:02:04,370 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:02:04,370 INFO L85 PathProgramCache]: Analyzing trace with hash -286853989, now seen corresponding path program 1 times [2024-10-14 04:02:04,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:02:04,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686462388] [2024-10-14 04:02:04,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:02:04,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:02:04,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:02:04,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:02:04,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:02:04,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686462388] [2024-10-14 04:02:04,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1686462388] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:02:04,781 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:02:04,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-14 04:02:04,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868273247] [2024-10-14 04:02:04,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:02:04,781 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-14 04:02:04,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:02:04,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-14 04:02:04,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-14 04:02:04,783 INFO L87 Difference]: Start difference. First operand 12981 states and 19120 transitions. Second operand has 9 states, 9 states have (on average 15.444444444444445) internal successors, (139), 8 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:02:05,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:02:05,303 INFO L93 Difference]: Finished difference Result 38459 states and 56622 transitions. [2024-10-14 04:02:05,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-14 04:02:05,303 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 15.444444444444445) internal successors, (139), 8 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 139 [2024-10-14 04:02:05,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:02:05,334 INFO L225 Difference]: With dead ends: 38459 [2024-10-14 04:02:05,338 INFO L226 Difference]: Without dead ends: 25912 [2024-10-14 04:02:05,363 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=95, Invalid=285, Unknown=0, NotChecked=0, Total=380 [2024-10-14 04:02:05,364 INFO L432 NwaCegarLoop]: 243 mSDtfsCounter, 887 mSDsluCounter, 955 mSDsCounter, 0 mSdLazyCounter, 1036 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 887 SdHoareTripleChecker+Valid, 1198 SdHoareTripleChecker+Invalid, 1039 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1036 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-14 04:02:05,365 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [887 Valid, 1198 Invalid, 1039 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1036 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-14 04:02:05,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25912 states. [2024-10-14 04:02:05,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25912 to 12981. [2024-10-14 04:02:05,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12981 states, 12980 states have (on average 1.4715716486902928) internal successors, (19101), 12980 states have internal predecessors, (19101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:02:05,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12981 states to 12981 states and 19101 transitions. [2024-10-14 04:02:05,567 INFO L78 Accepts]: Start accepts. Automaton has 12981 states and 19101 transitions. Word has length 139 [2024-10-14 04:02:05,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:02:05,568 INFO L471 AbstractCegarLoop]: Abstraction has 12981 states and 19101 transitions. [2024-10-14 04:02:05,568 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 15.444444444444445) internal successors, (139), 8 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:02:05,568 INFO L276 IsEmpty]: Start isEmpty. Operand 12981 states and 19101 transitions. [2024-10-14 04:02:05,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-10-14 04:02:05,577 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:02:05,577 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:02:05,577 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-10-14 04:02:05,578 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:02:05,578 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:02:05,578 INFO L85 PathProgramCache]: Analyzing trace with hash 1865074616, now seen corresponding path program 1 times [2024-10-14 04:02:05,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:02:05,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956075084] [2024-10-14 04:02:05,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:02:05,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:02:05,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:02:05,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:02:05,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:02:05,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956075084] [2024-10-14 04:02:05,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [956075084] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:02:05,875 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:02:05,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-14 04:02:05,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772057715] [2024-10-14 04:02:05,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:02:05,876 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-14 04:02:05,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:02:05,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-14 04:02:05,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-14 04:02:05,877 INFO L87 Difference]: Start difference. First operand 12981 states and 19101 transitions. Second operand has 9 states, 9 states have (on average 15.555555555555555) internal successors, (140), 8 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:02:06,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:02:06,408 INFO L93 Difference]: Finished difference Result 38284 states and 56323 transitions. [2024-10-14 04:02:06,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-14 04:02:06,409 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 15.555555555555555) internal successors, (140), 8 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 140 [2024-10-14 04:02:06,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:02:06,437 INFO L225 Difference]: With dead ends: 38284 [2024-10-14 04:02:06,437 INFO L226 Difference]: Without dead ends: 25832 [2024-10-14 04:02:06,456 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=108, Invalid=312, Unknown=0, NotChecked=0, Total=420 [2024-10-14 04:02:06,457 INFO L432 NwaCegarLoop]: 177 mSDtfsCounter, 1117 mSDsluCounter, 694 mSDsCounter, 0 mSdLazyCounter, 711 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1117 SdHoareTripleChecker+Valid, 871 SdHoareTripleChecker+Invalid, 715 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 711 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 04:02:06,457 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1117 Valid, 871 Invalid, 715 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 711 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 04:02:06,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25832 states. [2024-10-14 04:02:06,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25832 to 12981. [2024-10-14 04:02:06,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12981 states, 12980 states have (on average 1.4698767334360554) internal successors, (19079), 12980 states have internal predecessors, (19079), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:02:06,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12981 states to 12981 states and 19079 transitions. [2024-10-14 04:02:06,649 INFO L78 Accepts]: Start accepts. Automaton has 12981 states and 19079 transitions. Word has length 140 [2024-10-14 04:02:06,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:02:06,650 INFO L471 AbstractCegarLoop]: Abstraction has 12981 states and 19079 transitions. [2024-10-14 04:02:06,650 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 15.555555555555555) internal successors, (140), 8 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:02:06,650 INFO L276 IsEmpty]: Start isEmpty. Operand 12981 states and 19079 transitions. [2024-10-14 04:02:06,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-10-14 04:02:06,652 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:02:06,652 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:02:06,652 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-10-14 04:02:06,652 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:02:06,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:02:06,653 INFO L85 PathProgramCache]: Analyzing trace with hash -1755716498, now seen corresponding path program 1 times [2024-10-14 04:02:06,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:02:06,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996123636] [2024-10-14 04:02:06,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:02:06,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:02:06,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:02:07,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:02:07,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:02:07,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996123636] [2024-10-14 04:02:07,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996123636] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:02:07,365 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:02:07,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-14 04:02:07,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209107992] [2024-10-14 04:02:07,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:02:07,365 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-14 04:02:07,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:02:07,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-14 04:02:07,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-10-14 04:02:07,366 INFO L87 Difference]: Start difference. First operand 12981 states and 19079 transitions. Second operand has 13 states, 13 states have (on average 10.846153846153847) internal successors, (141), 12 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:02:07,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:02:07,957 INFO L93 Difference]: Finished difference Result 28310 states and 41704 transitions. [2024-10-14 04:02:07,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-14 04:02:07,958 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.846153846153847) internal successors, (141), 12 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 141 [2024-10-14 04:02:07,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:02:07,984 INFO L225 Difference]: With dead ends: 28310 [2024-10-14 04:02:07,984 INFO L226 Difference]: Without dead ends: 25560 [2024-10-14 04:02:07,994 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2024-10-14 04:02:07,994 INFO L432 NwaCegarLoop]: 407 mSDtfsCounter, 1064 mSDsluCounter, 2888 mSDsCounter, 0 mSdLazyCounter, 443 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1064 SdHoareTripleChecker+Valid, 3295 SdHoareTripleChecker+Invalid, 443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 443 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 04:02:07,995 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1064 Valid, 3295 Invalid, 443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 443 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 04:02:08,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25560 states. [2024-10-14 04:02:08,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25560 to 12897. [2024-10-14 04:02:08,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12897 states, 12896 states have (on average 1.470145781637717) internal successors, (18959), 12896 states have internal predecessors, (18959), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:02:08,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12897 states to 12897 states and 18959 transitions. [2024-10-14 04:02:08,173 INFO L78 Accepts]: Start accepts. Automaton has 12897 states and 18959 transitions. Word has length 141 [2024-10-14 04:02:08,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:02:08,174 INFO L471 AbstractCegarLoop]: Abstraction has 12897 states and 18959 transitions. [2024-10-14 04:02:08,174 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.846153846153847) internal successors, (141), 12 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:02:08,174 INFO L276 IsEmpty]: Start isEmpty. Operand 12897 states and 18959 transitions. [2024-10-14 04:02:08,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-10-14 04:02:08,175 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:02:08,176 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:02:08,176 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-10-14 04:02:08,176 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:02:08,176 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:02:08,176 INFO L85 PathProgramCache]: Analyzing trace with hash -559166580, now seen corresponding path program 1 times [2024-10-14 04:02:08,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:02:08,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472849026] [2024-10-14 04:02:08,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:02:08,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:02:08,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:02:12,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:02:12,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:02:12,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472849026] [2024-10-14 04:02:12,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472849026] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:02:12,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:02:12,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [50] imperfect sequences [] total 50 [2024-10-14 04:02:12,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143513687] [2024-10-14 04:02:12,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:02:12,058 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2024-10-14 04:02:12,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:02:12,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2024-10-14 04:02:12,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=2433, Unknown=0, NotChecked=0, Total=2550 [2024-10-14 04:02:12,059 INFO L87 Difference]: Start difference. First operand 12897 states and 18959 transitions. Second operand has 51 states, 51 states have (on average 2.764705882352941) internal successors, (141), 50 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:02:30,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:02:30,825 INFO L93 Difference]: Finished difference Result 71871 states and 105793 transitions. [2024-10-14 04:02:30,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2024-10-14 04:02:30,826 INFO L78 Accepts]: Start accepts. Automaton has has 51 states, 51 states have (on average 2.764705882352941) internal successors, (141), 50 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 141 [2024-10-14 04:02:30,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:02:30,905 INFO L225 Difference]: With dead ends: 71871 [2024-10-14 04:02:30,905 INFO L226 Difference]: Without dead ends: 69269 [2024-10-14 04:02:30,936 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1251 ImplicationChecksByTransitivity, 7.4s TimeCoverageRelationStatistics Valid=1100, Invalid=8020, Unknown=0, NotChecked=0, Total=9120 [2024-10-14 04:02:30,937 INFO L432 NwaCegarLoop]: 1093 mSDtfsCounter, 3755 mSDsluCounter, 32571 mSDsCounter, 0 mSdLazyCounter, 21662 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3755 SdHoareTripleChecker+Valid, 33664 SdHoareTripleChecker+Invalid, 21664 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21662 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.6s IncrementalHoareTripleChecker+Time [2024-10-14 04:02:30,937 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3755 Valid, 33664 Invalid, 21664 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 21662 Invalid, 0 Unknown, 0 Unchecked, 12.6s Time] [2024-10-14 04:02:30,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69269 states. [2024-10-14 04:02:31,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69269 to 12924. [2024-10-14 04:02:31,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12924 states, 12923 states have (on average 1.4698599396424978) internal successors, (18995), 12923 states have internal predecessors, (18995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:02:31,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12924 states to 12924 states and 18995 transitions. [2024-10-14 04:02:31,412 INFO L78 Accepts]: Start accepts. Automaton has 12924 states and 18995 transitions. Word has length 141 [2024-10-14 04:02:31,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:02:31,412 INFO L471 AbstractCegarLoop]: Abstraction has 12924 states and 18995 transitions. [2024-10-14 04:02:31,412 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 51 states have (on average 2.764705882352941) internal successors, (141), 50 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:02:31,413 INFO L276 IsEmpty]: Start isEmpty. Operand 12924 states and 18995 transitions. [2024-10-14 04:02:31,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-10-14 04:02:31,414 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:02:31,414 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:02:31,414 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-10-14 04:02:31,414 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:02:31,415 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:02:31,415 INFO L85 PathProgramCache]: Analyzing trace with hash -1906701457, now seen corresponding path program 1 times [2024-10-14 04:02:31,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:02:31,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489265464] [2024-10-14 04:02:31,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:02:31,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:02:31,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:02:32,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:02:32,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:02:32,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489265464] [2024-10-14 04:02:32,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1489265464] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:02:32,233 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:02:32,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-14 04:02:32,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092829206] [2024-10-14 04:02:32,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:02:32,234 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-14 04:02:32,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:02:32,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-14 04:02:32,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-10-14 04:02:32,235 INFO L87 Difference]: Start difference. First operand 12924 states and 18995 transitions. Second operand has 13 states, 13 states have (on average 10.846153846153847) internal successors, (141), 12 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:02:32,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:02:32,866 INFO L93 Difference]: Finished difference Result 28109 states and 41424 transitions. [2024-10-14 04:02:32,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-14 04:02:32,866 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.846153846153847) internal successors, (141), 12 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 141 [2024-10-14 04:02:32,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:02:32,896 INFO L225 Difference]: With dead ends: 28109 [2024-10-14 04:02:32,896 INFO L226 Difference]: Without dead ends: 25444 [2024-10-14 04:02:32,908 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2024-10-14 04:02:32,908 INFO L432 NwaCegarLoop]: 274 mSDtfsCounter, 1273 mSDsluCounter, 1818 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1273 SdHoareTripleChecker+Valid, 2092 SdHoareTripleChecker+Invalid, 339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 04:02:32,908 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1273 Valid, 2092 Invalid, 339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 04:02:32,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25444 states. [2024-10-14 04:02:33,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25444 to 12889. [2024-10-14 04:02:33,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12889 states, 12888 states have (on average 1.4691961514587213) internal successors, (18935), 12888 states have internal predecessors, (18935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:02:33,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12889 states to 12889 states and 18935 transitions. [2024-10-14 04:02:33,086 INFO L78 Accepts]: Start accepts. Automaton has 12889 states and 18935 transitions. Word has length 141 [2024-10-14 04:02:33,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:02:33,087 INFO L471 AbstractCegarLoop]: Abstraction has 12889 states and 18935 transitions. [2024-10-14 04:02:33,087 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.846153846153847) internal successors, (141), 12 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:02:33,087 INFO L276 IsEmpty]: Start isEmpty. Operand 12889 states and 18935 transitions. [2024-10-14 04:02:33,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-10-14 04:02:33,088 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:02:33,088 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:02:33,089 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-10-14 04:02:33,089 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:02:33,089 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:02:33,089 INFO L85 PathProgramCache]: Analyzing trace with hash -1678267635, now seen corresponding path program 1 times [2024-10-14 04:02:33,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:02:33,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906074373] [2024-10-14 04:02:33,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:02:33,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:02:33,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:02:38,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:02:38,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:02:38,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906074373] [2024-10-14 04:02:38,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1906074373] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:02:38,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:02:38,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [51] imperfect sequences [] total 51 [2024-10-14 04:02:38,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868690396] [2024-10-14 04:02:38,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:02:38,174 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2024-10-14 04:02:38,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:02:38,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2024-10-14 04:02:38,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=2536, Unknown=0, NotChecked=0, Total=2652 [2024-10-14 04:02:38,176 INFO L87 Difference]: Start difference. First operand 12889 states and 18935 transitions. Second operand has 52 states, 52 states have (on average 2.7115384615384617) internal successors, (141), 51 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:03:00,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:03:00,481 INFO L93 Difference]: Finished difference Result 70488 states and 103728 transitions. [2024-10-14 04:03:00,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2024-10-14 04:03:00,482 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 52 states have (on average 2.7115384615384617) internal successors, (141), 51 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 141 [2024-10-14 04:03:00,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:03:00,566 INFO L225 Difference]: With dead ends: 70488 [2024-10-14 04:03:00,566 INFO L226 Difference]: Without dead ends: 69186 [2024-10-14 04:03:00,594 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1259 ImplicationChecksByTransitivity, 9.7s TimeCoverageRelationStatistics Valid=1106, Invalid=8400, Unknown=0, NotChecked=0, Total=9506 [2024-10-14 04:03:00,595 INFO L432 NwaCegarLoop]: 1060 mSDtfsCounter, 3722 mSDsluCounter, 34498 mSDsCounter, 0 mSdLazyCounter, 22789 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3722 SdHoareTripleChecker+Valid, 35558 SdHoareTripleChecker+Invalid, 22790 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22789 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.4s IncrementalHoareTripleChecker+Time [2024-10-14 04:03:00,596 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3722 Valid, 35558 Invalid, 22790 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 22789 Invalid, 0 Unknown, 0 Unchecked, 14.4s Time] [2024-10-14 04:03:00,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69186 states. [2024-10-14 04:03:00,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69186 to 12899. [2024-10-14 04:03:01,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12899 states, 12898 states have (on average 1.469142502713599) internal successors, (18949), 12898 states have internal predecessors, (18949), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:03:01,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12899 states to 12899 states and 18949 transitions. [2024-10-14 04:03:01,020 INFO L78 Accepts]: Start accepts. Automaton has 12899 states and 18949 transitions. Word has length 141 [2024-10-14 04:03:01,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:03:01,020 INFO L471 AbstractCegarLoop]: Abstraction has 12899 states and 18949 transitions. [2024-10-14 04:03:01,021 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 52 states have (on average 2.7115384615384617) internal successors, (141), 51 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:03:01,021 INFO L276 IsEmpty]: Start isEmpty. Operand 12899 states and 18949 transitions. [2024-10-14 04:03:01,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-10-14 04:03:01,022 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:03:01,022 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:03:01,022 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-10-14 04:03:01,022 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:03:01,022 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:03:01,023 INFO L85 PathProgramCache]: Analyzing trace with hash 1269164784, now seen corresponding path program 1 times [2024-10-14 04:03:01,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:03:01,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233544622] [2024-10-14 04:03:01,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:03:01,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:03:01,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:03:01,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:03:01,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:03:01,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233544622] [2024-10-14 04:03:01,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1233544622] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:03:01,509 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:03:01,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-14 04:03:01,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136143148] [2024-10-14 04:03:01,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:03:01,510 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-14 04:03:01,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:03:01,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-14 04:03:01,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-10-14 04:03:01,512 INFO L87 Difference]: Start difference. First operand 12899 states and 18949 transitions. Second operand has 13 states, 13 states have (on average 10.846153846153847) internal successors, (141), 12 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:03:02,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:03:02,042 INFO L93 Difference]: Finished difference Result 28075 states and 41360 transitions. [2024-10-14 04:03:02,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-14 04:03:02,042 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.846153846153847) internal successors, (141), 12 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 141 [2024-10-14 04:03:02,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:03:02,074 INFO L225 Difference]: With dead ends: 28075 [2024-10-14 04:03:02,074 INFO L226 Difference]: Without dead ends: 25376 [2024-10-14 04:03:02,085 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2024-10-14 04:03:02,085 INFO L432 NwaCegarLoop]: 279 mSDtfsCounter, 1474 mSDsluCounter, 1657 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1474 SdHoareTripleChecker+Valid, 1936 SdHoareTripleChecker+Invalid, 323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 04:03:02,085 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1474 Valid, 1936 Invalid, 323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 04:03:02,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25376 states. [2024-10-14 04:03:02,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25376 to 12845. [2024-10-14 04:03:02,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12845 states, 12844 states have (on average 1.469090625973217) internal successors, (18869), 12844 states have internal predecessors, (18869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:03:02,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12845 states to 12845 states and 18869 transitions. [2024-10-14 04:03:02,277 INFO L78 Accepts]: Start accepts. Automaton has 12845 states and 18869 transitions. Word has length 141 [2024-10-14 04:03:02,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:03:02,278 INFO L471 AbstractCegarLoop]: Abstraction has 12845 states and 18869 transitions. [2024-10-14 04:03:02,278 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.846153846153847) internal successors, (141), 12 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:03:02,278 INFO L276 IsEmpty]: Start isEmpty. Operand 12845 states and 18869 transitions. [2024-10-14 04:03:02,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-10-14 04:03:02,279 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:03:02,279 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:03:02,279 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-10-14 04:03:02,279 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:03:02,280 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:03:02,280 INFO L85 PathProgramCache]: Analyzing trace with hash -377060850, now seen corresponding path program 1 times [2024-10-14 04:03:02,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:03:02,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132267905] [2024-10-14 04:03:02,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:03:02,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:03:02,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:03:02,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:03:02,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:03:02,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132267905] [2024-10-14 04:03:02,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [132267905] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:03:02,760 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:03:02,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-14 04:03:02,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024911436] [2024-10-14 04:03:02,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:03:02,760 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-14 04:03:02,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:03:02,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-14 04:03:02,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-10-14 04:03:02,761 INFO L87 Difference]: Start difference. First operand 12845 states and 18869 transitions. Second operand has 13 states, 13 states have (on average 10.846153846153847) internal successors, (141), 12 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:03:03,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:03:03,315 INFO L93 Difference]: Finished difference Result 28046 states and 41308 transitions. [2024-10-14 04:03:03,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-14 04:03:03,316 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.846153846153847) internal successors, (141), 12 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 141 [2024-10-14 04:03:03,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:03:03,344 INFO L225 Difference]: With dead ends: 28046 [2024-10-14 04:03:03,344 INFO L226 Difference]: Without dead ends: 25326 [2024-10-14 04:03:03,354 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2024-10-14 04:03:03,355 INFO L432 NwaCegarLoop]: 396 mSDtfsCounter, 1248 mSDsluCounter, 2641 mSDsCounter, 0 mSdLazyCounter, 420 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1248 SdHoareTripleChecker+Valid, 3037 SdHoareTripleChecker+Invalid, 420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 420 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 04:03:03,355 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1248 Valid, 3037 Invalid, 420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 420 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 04:03:03,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25326 states. [2024-10-14 04:03:03,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25326 to 12756. [2024-10-14 04:03:03,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12756 states, 12755 states have (on average 1.4701685613484907) internal successors, (18752), 12755 states have internal predecessors, (18752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:03:03,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12756 states to 12756 states and 18752 transitions. [2024-10-14 04:03:03,537 INFO L78 Accepts]: Start accepts. Automaton has 12756 states and 18752 transitions. Word has length 141 [2024-10-14 04:03:03,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:03:03,537 INFO L471 AbstractCegarLoop]: Abstraction has 12756 states and 18752 transitions. [2024-10-14 04:03:03,537 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.846153846153847) internal successors, (141), 12 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:03:03,537 INFO L276 IsEmpty]: Start isEmpty. Operand 12756 states and 18752 transitions. [2024-10-14 04:03:03,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-10-14 04:03:03,538 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:03:03,538 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:03:03,538 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-10-14 04:03:03,539 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:03:03,539 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:03:03,539 INFO L85 PathProgramCache]: Analyzing trace with hash -2064771440, now seen corresponding path program 1 times [2024-10-14 04:03:03,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:03:03,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296894171] [2024-10-14 04:03:03,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:03:03,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:03:03,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:03:04,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:03:04,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:03:04,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296894171] [2024-10-14 04:03:04,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296894171] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:03:04,328 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:03:04,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-10-14 04:03:04,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152894877] [2024-10-14 04:03:04,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:03:04,329 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-14 04:03:04,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:03:04,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-14 04:03:04,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-10-14 04:03:04,331 INFO L87 Difference]: Start difference. First operand 12756 states and 18752 transitions. Second operand has 14 states, 14 states have (on average 10.071428571428571) internal successors, (141), 13 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:03:05,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:03:05,161 INFO L93 Difference]: Finished difference Result 40202 states and 59261 transitions. [2024-10-14 04:03:05,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-10-14 04:03:05,162 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 10.071428571428571) internal successors, (141), 13 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 141 [2024-10-14 04:03:05,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:03:05,209 INFO L225 Difference]: With dead ends: 40202 [2024-10-14 04:03:05,209 INFO L226 Difference]: Without dead ends: 37472 [2024-10-14 04:03:05,225 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=167, Invalid=535, Unknown=0, NotChecked=0, Total=702 [2024-10-14 04:03:05,225 INFO L432 NwaCegarLoop]: 538 mSDtfsCounter, 1350 mSDsluCounter, 3427 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1350 SdHoareTripleChecker+Valid, 3965 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 04:03:05,225 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1350 Valid, 3965 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 481 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 04:03:05,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37472 states. [2024-10-14 04:03:05,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37472 to 12632. [2024-10-14 04:03:05,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12632 states, 12631 states have (on average 1.4725674926767476) internal successors, (18600), 12631 states have internal predecessors, (18600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:03:05,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12632 states to 12632 states and 18600 transitions. [2024-10-14 04:03:05,482 INFO L78 Accepts]: Start accepts. Automaton has 12632 states and 18600 transitions. Word has length 141 [2024-10-14 04:03:05,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:03:05,482 INFO L471 AbstractCegarLoop]: Abstraction has 12632 states and 18600 transitions. [2024-10-14 04:03:05,483 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 10.071428571428571) internal successors, (141), 13 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:03:05,483 INFO L276 IsEmpty]: Start isEmpty. Operand 12632 states and 18600 transitions. [2024-10-14 04:03:05,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-10-14 04:03:05,483 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:03:05,484 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:03:05,484 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-10-14 04:03:05,484 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:03:05,484 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:03:05,484 INFO L85 PathProgramCache]: Analyzing trace with hash -617130991, now seen corresponding path program 1 times [2024-10-14 04:03:05,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:03:05,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235064623] [2024-10-14 04:03:05,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:03:05,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:03:05,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat