./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w128_d64_e0.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w128_d64_e0.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash ff4eead42fe5c3232d9549669a622d0a23554d4f2d3afdf105ae081b78416ec8 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-08 18:09:37,871 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 18:09:37,943 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-08 18:09:37,947 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 18:09:37,948 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 18:09:37,967 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 18:09:37,967 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 18:09:37,968 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 18:09:37,968 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 18:09:37,969 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 18:09:37,969 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 18:09:37,969 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 18:09:37,970 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 18:09:37,970 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 18:09:37,971 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 18:09:37,971 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 18:09:37,971 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 18:09:37,972 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 18:09:37,975 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 18:09:37,975 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 18:09:37,975 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 18:09:37,976 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 18:09:37,976 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 18:09:37,976 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 18:09:37,977 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 18:09:37,980 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 18:09:37,980 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 18:09:37,980 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 18:09:37,981 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 18:09:37,981 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:09:37,981 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 18:09:37,982 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 18:09:37,982 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 18:09:37,982 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 18:09:37,982 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 18:09:37,983 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 18:09:37,983 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 18:09:37,983 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 18:09:37,984 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 18:09:37,984 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ff4eead42fe5c3232d9549669a622d0a23554d4f2d3afdf105ae081b78416ec8 [2024-11-08 18:09:38,261 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 18:09:38,288 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 18:09:38,291 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 18:09:38,293 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 18:09:38,293 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 18:09:38,294 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w128_d64_e0.c [2024-11-08 18:09:39,810 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 18:09:40,152 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 18:09:40,152 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w128_d64_e0.c [2024-11-08 18:09:40,175 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/467fbe76b/c111b521939843ac91ac9c71999f1617/FLAGbadb4701e [2024-11-08 18:09:40,187 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/467fbe76b/c111b521939843ac91ac9c71999f1617 [2024-11-08 18:09:40,190 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 18:09:40,191 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 18:09:40,192 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 18:09:40,192 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 18:09:40,199 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 18:09:40,200 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:09:40" (1/1) ... [2024-11-08 18:09:40,201 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18b7894f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:09:40, skipping insertion in model container [2024-11-08 18:09:40,201 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:09:40" (1/1) ... [2024-11-08 18:09:40,274 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 18:09:40,510 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w128_d64_e0.c[1335,1348] [2024-11-08 18:09:40,910 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:09:40,921 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 18:09:40,932 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w128_d64_e0.c[1335,1348] [2024-11-08 18:09:41,183 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:09:41,203 INFO L204 MainTranslator]: Completed translation [2024-11-08 18:09:41,205 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:09:41 WrapperNode [2024-11-08 18:09:41,205 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 18:09:41,206 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 18:09:41,206 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 18:09:41,206 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 18:09:41,213 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:09:41" (1/1) ... [2024-11-08 18:09:41,319 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:09:41" (1/1) ... [2024-11-08 18:09:41,800 INFO L138 Inliner]: procedures = 18, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 5533 [2024-11-08 18:09:41,800 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 18:09:41,801 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 18:09:41,801 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 18:09:41,801 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 18:09:41,813 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:09:41" (1/1) ... [2024-11-08 18:09:41,813 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:09:41" (1/1) ... [2024-11-08 18:09:42,021 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:09:41" (1/1) ... [2024-11-08 18:09:42,153 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-08 18:09:42,153 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:09:41" (1/1) ... [2024-11-08 18:09:42,154 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:09:41" (1/1) ... [2024-11-08 18:09:42,277 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:09:41" (1/1) ... [2024-11-08 18:09:42,322 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:09:41" (1/1) ... [2024-11-08 18:09:42,352 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:09:41" (1/1) ... [2024-11-08 18:09:42,383 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:09:41" (1/1) ... [2024-11-08 18:09:42,563 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 18:09:42,564 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 18:09:42,564 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 18:09:42,568 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 18:09:42,569 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:09:41" (1/1) ... [2024-11-08 18:09:42,579 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:09:42,595 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 18:09:42,637 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 18:09:42,644 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 18:09:42,717 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 18:09:42,721 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-08 18:09:42,721 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-08 18:09:42,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 18:09:42,722 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 18:09:42,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 18:09:43,275 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 18:09:43,277 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 18:09:50,259 INFO L? ?]: Removed 3109 outVars from TransFormulas that were not future-live. [2024-11-08 18:09:50,259 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 18:09:50,314 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 18:09:50,316 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 18:09:50,316 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:09:50 BoogieIcfgContainer [2024-11-08 18:09:50,316 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 18:09:50,319 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 18:09:50,319 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 18:09:50,322 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 18:09:50,322 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 06:09:40" (1/3) ... [2024-11-08 18:09:50,323 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@148d723e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:09:50, skipping insertion in model container [2024-11-08 18:09:50,323 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:09:41" (2/3) ... [2024-11-08 18:09:50,323 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@148d723e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:09:50, skipping insertion in model container [2024-11-08 18:09:50,323 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:09:50" (3/3) ... [2024-11-08 18:09:50,324 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.circular_pointer_top_w128_d64_e0.c [2024-11-08 18:09:50,341 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 18:09:50,342 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 18:09:50,455 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 18:09:50,462 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;@5e0dd4e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 18:09:50,463 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 18:09:50,474 INFO L276 IsEmpty]: Start isEmpty. Operand has 1512 states, 1506 states have (on average 1.49800796812749) internal successors, (2256), 1507 states have internal predecessors, (2256), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-08 18:09:50,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 342 [2024-11-08 18:09:50,507 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:09:50,508 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:09:50,509 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:09:50,516 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:09:50,516 INFO L85 PathProgramCache]: Analyzing trace with hash 2128564416, now seen corresponding path program 1 times [2024-11-08 18:09:50,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:09:50,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177093369] [2024-11-08 18:09:50,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:09:50,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:09:50,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:09:51,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-11-08 18:09:51,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:09:51,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2024-11-08 18:09:51,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:09:51,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-11-08 18:09:51,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:09:51,418 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-08 18:09:51,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:09:51,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177093369] [2024-11-08 18:09:51,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177093369] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:09:51,421 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:09:51,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 18:09:51,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474479605] [2024-11-08 18:09:51,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:09:51,429 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 18:09:51,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:09:51,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 18:09:51,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 18:09:51,464 INFO L87 Difference]: Start difference. First operand has 1512 states, 1506 states have (on average 1.49800796812749) internal successors, (2256), 1507 states have internal predecessors, (2256), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 2 states have (on average 164.5) internal successors, (329), 2 states have internal predecessors, (329), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-08 18:09:51,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:09:51,580 INFO L93 Difference]: Finished difference Result 2727 states and 4085 transitions. [2024-11-08 18:09:51,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 18:09:51,583 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 164.5) internal successors, (329), 2 states have internal predecessors, (329), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 341 [2024-11-08 18:09:51,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:09:51,613 INFO L225 Difference]: With dead ends: 2727 [2024-11-08 18:09:51,613 INFO L226 Difference]: Without dead ends: 1509 [2024-11-08 18:09:51,624 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 18:09:51,628 INFO L432 NwaCegarLoop]: 2257 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2257 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:09:51,630 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2257 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:09:51,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1509 states. [2024-11-08 18:09:51,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1509 to 1509. [2024-11-08 18:09:51,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1509 states, 1504 states have (on average 1.4966755319148937) internal successors, (2251), 1504 states have internal predecessors, (2251), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-08 18:09:51,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1509 states to 1509 states and 2257 transitions. [2024-11-08 18:09:51,811 INFO L78 Accepts]: Start accepts. Automaton has 1509 states and 2257 transitions. Word has length 341 [2024-11-08 18:09:51,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:09:51,813 INFO L471 AbstractCegarLoop]: Abstraction has 1509 states and 2257 transitions. [2024-11-08 18:09:51,813 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 164.5) internal successors, (329), 2 states have internal predecessors, (329), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-08 18:09:51,813 INFO L276 IsEmpty]: Start isEmpty. Operand 1509 states and 2257 transitions. [2024-11-08 18:09:51,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 342 [2024-11-08 18:09:51,820 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:09:51,821 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:09:51,821 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 18:09:51,821 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:09:51,822 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:09:51,822 INFO L85 PathProgramCache]: Analyzing trace with hash -46000134, now seen corresponding path program 1 times [2024-11-08 18:09:51,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:09:51,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737028680] [2024-11-08 18:09:51,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:09:51,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:09:52,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:09:54,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-11-08 18:09:54,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:09:54,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2024-11-08 18:09:54,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:09:54,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-11-08 18:09:54,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:09:54,256 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-08 18:09:54,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:09:54,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737028680] [2024-11-08 18:09:54,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737028680] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:09:54,256 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:09:54,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 18:09:54,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334291122] [2024-11-08 18:09:54,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:09:54,262 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:09:54,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:09:54,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:09:54,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:09:54,264 INFO L87 Difference]: Start difference. First operand 1509 states and 2257 transitions. Second operand has 4 states, 4 states have (on average 82.25) internal successors, (329), 4 states have internal predecessors, (329), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-08 18:09:54,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:09:54,334 INFO L93 Difference]: Finished difference Result 1513 states and 2261 transitions. [2024-11-08 18:09:54,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:09:54,335 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 82.25) internal successors, (329), 4 states have internal predecessors, (329), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 341 [2024-11-08 18:09:54,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:09:54,345 INFO L225 Difference]: With dead ends: 1513 [2024-11-08 18:09:54,346 INFO L226 Difference]: Without dead ends: 1511 [2024-11-08 18:09:54,348 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:09:54,349 INFO L432 NwaCegarLoop]: 2255 mSDtfsCounter, 0 mSDsluCounter, 4504 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6759 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:09:54,350 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6759 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:09:54,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1511 states. [2024-11-08 18:09:54,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1511 to 1511. [2024-11-08 18:09:54,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1511 states, 1506 states have (on average 1.49601593625498) internal successors, (2253), 1506 states have internal predecessors, (2253), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-08 18:09:54,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1511 states to 1511 states and 2259 transitions. [2024-11-08 18:09:54,382 INFO L78 Accepts]: Start accepts. Automaton has 1511 states and 2259 transitions. Word has length 341 [2024-11-08 18:09:54,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:09:54,385 INFO L471 AbstractCegarLoop]: Abstraction has 1511 states and 2259 transitions. [2024-11-08 18:09:54,386 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 82.25) internal successors, (329), 4 states have internal predecessors, (329), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-08 18:09:54,386 INFO L276 IsEmpty]: Start isEmpty. Operand 1511 states and 2259 transitions. [2024-11-08 18:09:54,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2024-11-08 18:09:54,390 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:09:54,391 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:09:54,391 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 18:09:54,392 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:09:54,392 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:09:54,392 INFO L85 PathProgramCache]: Analyzing trace with hash -1424306928, now seen corresponding path program 1 times [2024-11-08 18:09:54,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:09:54,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843938425] [2024-11-08 18:09:54,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:09:54,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:09:54,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:09:55,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-11-08 18:09:55,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:09:55,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2024-11-08 18:09:55,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:09:55,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-11-08 18:09:55,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:09:55,708 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-08 18:09:55,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:09:55,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843938425] [2024-11-08 18:09:55,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843938425] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:09:55,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:09:55,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:09:55,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507553054] [2024-11-08 18:09:55,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:09:55,711 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:09:55,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:09:55,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:09:55,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:09:55,715 INFO L87 Difference]: Start difference. First operand 1511 states and 2259 transitions. Second operand has 5 states, 5 states have (on average 66.0) internal successors, (330), 5 states have internal predecessors, (330), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-08 18:09:56,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:09:56,634 INFO L93 Difference]: Finished difference Result 3771 states and 5641 transitions. [2024-11-08 18:09:56,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:09:56,635 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 66.0) internal successors, (330), 5 states have internal predecessors, (330), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 342 [2024-11-08 18:09:56,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:09:56,642 INFO L225 Difference]: With dead ends: 3771 [2024-11-08 18:09:56,642 INFO L226 Difference]: Without dead ends: 1511 [2024-11-08 18:09:56,646 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-08 18:09:56,649 INFO L432 NwaCegarLoop]: 2253 mSDtfsCounter, 4786 mSDsluCounter, 4082 mSDsCounter, 0 mSdLazyCounter, 638 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4786 SdHoareTripleChecker+Valid, 6335 SdHoareTripleChecker+Invalid, 723 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 638 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-08 18:09:56,650 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4786 Valid, 6335 Invalid, 723 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 638 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-08 18:09:56,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1511 states. [2024-11-08 18:09:56,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1511 to 1511. [2024-11-08 18:09:56,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1511 states, 1506 states have (on average 1.49535192563081) internal successors, (2252), 1506 states have internal predecessors, (2252), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-08 18:09:56,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1511 states to 1511 states and 2258 transitions. [2024-11-08 18:09:56,681 INFO L78 Accepts]: Start accepts. Automaton has 1511 states and 2258 transitions. Word has length 342 [2024-11-08 18:09:56,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:09:56,682 INFO L471 AbstractCegarLoop]: Abstraction has 1511 states and 2258 transitions. [2024-11-08 18:09:56,682 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 66.0) internal successors, (330), 5 states have internal predecessors, (330), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-08 18:09:56,683 INFO L276 IsEmpty]: Start isEmpty. Operand 1511 states and 2258 transitions. [2024-11-08 18:09:56,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 344 [2024-11-08 18:09:56,687 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:09:56,687 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:09:56,688 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 18:09:56,688 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:09:56,688 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:09:56,689 INFO L85 PathProgramCache]: Analyzing trace with hash 1097877612, now seen corresponding path program 1 times [2024-11-08 18:09:56,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:09:56,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540174229] [2024-11-08 18:09:56,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:09:56,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:09:57,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:09:58,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-11-08 18:09:58,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:09:58,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2024-11-08 18:09:58,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:09:58,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-11-08 18:09:58,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:09:58,093 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-08 18:09:58,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:09:58,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540174229] [2024-11-08 18:09:58,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [540174229] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:09:58,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:09:58,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 18:09:58,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347480353] [2024-11-08 18:09:58,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:09:58,095 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:09:58,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:09:58,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:09:58,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:09:58,097 INFO L87 Difference]: Start difference. First operand 1511 states and 2258 transitions. Second operand has 4 states, 4 states have (on average 82.75) internal successors, (331), 4 states have internal predecessors, (331), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-08 18:09:58,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:09:58,180 INFO L93 Difference]: Finished difference Result 2730 states and 4079 transitions. [2024-11-08 18:09:58,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:09:58,181 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 82.75) internal successors, (331), 4 states have internal predecessors, (331), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 343 [2024-11-08 18:09:58,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:09:58,187 INFO L225 Difference]: With dead ends: 2730 [2024-11-08 18:09:58,187 INFO L226 Difference]: Without dead ends: 1513 [2024-11-08 18:09:58,190 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:09:58,191 INFO L432 NwaCegarLoop]: 2254 mSDtfsCounter, 0 mSDsluCounter, 4498 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6752 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:09:58,191 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6752 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:09:58,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1513 states. [2024-11-08 18:09:58,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1513 to 1513. [2024-11-08 18:09:58,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 1508 states have (on average 1.4946949602122015) internal successors, (2254), 1508 states have internal predecessors, (2254), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-08 18:09:58,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 2260 transitions. [2024-11-08 18:09:58,225 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 2260 transitions. Word has length 343 [2024-11-08 18:09:58,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:09:58,227 INFO L471 AbstractCegarLoop]: Abstraction has 1513 states and 2260 transitions. [2024-11-08 18:09:58,228 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 82.75) internal successors, (331), 4 states have internal predecessors, (331), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-08 18:09:58,228 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 2260 transitions. [2024-11-08 18:09:58,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 345 [2024-11-08 18:09:58,233 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:09:58,233 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:09:58,234 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 18:09:58,234 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:09:58,234 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:09:58,235 INFO L85 PathProgramCache]: Analyzing trace with hash -1423496265, now seen corresponding path program 1 times [2024-11-08 18:09:58,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:09:58,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172316625] [2024-11-08 18:09:58,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:09:58,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:09:58,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:00,325 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-11-08 18:10:00,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:00,333 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2024-11-08 18:10:00,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:00,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-11-08 18:10:00,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:00,347 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-08 18:10:00,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:10:00,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172316625] [2024-11-08 18:10:00,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172316625] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:10:00,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:10:00,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 18:10:00,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303667270] [2024-11-08 18:10:00,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:10:00,352 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:10:00,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:10:00,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:10:00,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:10:00,353 INFO L87 Difference]: Start difference. First operand 1513 states and 2260 transitions. Second operand has 4 states, 4 states have (on average 83.0) internal successors, (332), 4 states have internal predecessors, (332), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-08 18:10:01,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:10:01,054 INFO L93 Difference]: Finished difference Result 2732 states and 4080 transitions. [2024-11-08 18:10:01,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:10:01,054 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 83.0) internal successors, (332), 4 states have internal predecessors, (332), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 344 [2024-11-08 18:10:01,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:10:01,061 INFO L225 Difference]: With dead ends: 2732 [2024-11-08 18:10:01,061 INFO L226 Difference]: Without dead ends: 1513 [2024-11-08 18:10:01,065 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:10:01,066 INFO L432 NwaCegarLoop]: 1934 mSDtfsCounter, 1936 mSDsluCounter, 1936 mSDsCounter, 0 mSdLazyCounter, 644 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1936 SdHoareTripleChecker+Valid, 3870 SdHoareTripleChecker+Invalid, 644 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 644 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-08 18:10:01,068 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1936 Valid, 3870 Invalid, 644 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 644 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-08 18:10:01,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1513 states. [2024-11-08 18:10:01,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1513 to 1513. [2024-11-08 18:10:01,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 1508 states have (on average 1.4940318302387268) internal successors, (2253), 1508 states have internal predecessors, (2253), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-08 18:10:01,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 2259 transitions. [2024-11-08 18:10:01,106 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 2259 transitions. Word has length 344 [2024-11-08 18:10:01,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:10:01,108 INFO L471 AbstractCegarLoop]: Abstraction has 1513 states and 2259 transitions. [2024-11-08 18:10:01,108 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 83.0) internal successors, (332), 4 states have internal predecessors, (332), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-08 18:10:01,108 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 2259 transitions. [2024-11-08 18:10:01,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 346 [2024-11-08 18:10:01,115 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:10:01,115 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:10:01,117 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 18:10:01,118 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:10:01,118 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:10:01,118 INFO L85 PathProgramCache]: Analyzing trace with hash -2100764312, now seen corresponding path program 1 times [2024-11-08 18:10:01,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:10:01,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876915296] [2024-11-08 18:10:01,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:10:01,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:10:01,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:02,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-11-08 18:10:02,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:02,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2024-11-08 18:10:02,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:02,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-11-08 18:10:02,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:02,313 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-08 18:10:02,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:10:02,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876915296] [2024-11-08 18:10:02,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876915296] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:10:02,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:10:02,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:10:02,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188091142] [2024-11-08 18:10:02,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:10:02,316 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:10:02,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:10:02,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:10:02,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:10:02,318 INFO L87 Difference]: Start difference. First operand 1513 states and 2259 transitions. Second operand has 5 states, 5 states have (on average 66.6) internal successors, (333), 5 states have internal predecessors, (333), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-08 18:10:02,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:10:02,882 INFO L93 Difference]: Finished difference Result 2792 states and 4167 transitions. [2024-11-08 18:10:02,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:10:02,883 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 66.6) internal successors, (333), 5 states have internal predecessors, (333), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 345 [2024-11-08 18:10:02,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:10:02,889 INFO L225 Difference]: With dead ends: 2792 [2024-11-08 18:10:02,889 INFO L226 Difference]: Without dead ends: 1513 [2024-11-08 18:10:02,892 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:10:02,893 INFO L432 NwaCegarLoop]: 2219 mSDtfsCounter, 2055 mSDsluCounter, 4157 mSDsCounter, 0 mSdLazyCounter, 392 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2055 SdHoareTripleChecker+Valid, 6376 SdHoareTripleChecker+Invalid, 421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-08 18:10:02,895 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2055 Valid, 6376 Invalid, 421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 392 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-08 18:10:02,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1513 states. [2024-11-08 18:10:02,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1513 to 1513. [2024-11-08 18:10:02,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 1508 states have (on average 1.493368700265252) internal successors, (2252), 1508 states have internal predecessors, (2252), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-08 18:10:02,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 2258 transitions. [2024-11-08 18:10:02,926 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 2258 transitions. Word has length 345 [2024-11-08 18:10:02,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:10:02,927 INFO L471 AbstractCegarLoop]: Abstraction has 1513 states and 2258 transitions. [2024-11-08 18:10:02,928 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 66.6) internal successors, (333), 5 states have internal predecessors, (333), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-08 18:10:02,928 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 2258 transitions. [2024-11-08 18:10:02,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347 [2024-11-08 18:10:02,932 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:10:02,933 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:10:02,933 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 18:10:02,933 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:10:02,933 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:10:02,934 INFO L85 PathProgramCache]: Analyzing trace with hash -101391483, now seen corresponding path program 1 times [2024-11-08 18:10:02,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:10:02,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676340692] [2024-11-08 18:10:02,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:10:02,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:10:03,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:03,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-11-08 18:10:03,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:03,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2024-11-08 18:10:03,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:03,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-11-08 18:10:03,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:03,958 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-08 18:10:03,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:10:03,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676340692] [2024-11-08 18:10:03,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676340692] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:10:03,960 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:10:03,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:10:03,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636740808] [2024-11-08 18:10:03,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:10:03,961 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:10:03,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:10:03,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:10:03,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:10:03,962 INFO L87 Difference]: Start difference. First operand 1513 states and 2258 transitions. Second operand has 5 states, 5 states have (on average 66.8) internal successors, (334), 5 states have internal predecessors, (334), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-08 18:10:04,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:10:04,586 INFO L93 Difference]: Finished difference Result 2732 states and 4076 transitions. [2024-11-08 18:10:04,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:10:04,587 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 66.8) internal successors, (334), 5 states have internal predecessors, (334), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 346 [2024-11-08 18:10:04,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:10:04,593 INFO L225 Difference]: With dead ends: 2732 [2024-11-08 18:10:04,593 INFO L226 Difference]: Without dead ends: 1513 [2024-11-08 18:10:04,596 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:10:04,598 INFO L432 NwaCegarLoop]: 1934 mSDtfsCounter, 4231 mSDsluCounter, 1936 mSDsCounter, 0 mSdLazyCounter, 640 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4234 SdHoareTripleChecker+Valid, 3870 SdHoareTripleChecker+Invalid, 641 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 640 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-08 18:10:04,599 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4234 Valid, 3870 Invalid, 641 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 640 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-08 18:10:04,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1513 states. [2024-11-08 18:10:04,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1513 to 1513. [2024-11-08 18:10:04,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 1508 states have (on average 1.492705570291777) internal successors, (2251), 1508 states have internal predecessors, (2251), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-08 18:10:04,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 2257 transitions. [2024-11-08 18:10:04,629 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 2257 transitions. Word has length 346 [2024-11-08 18:10:04,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:10:04,630 INFO L471 AbstractCegarLoop]: Abstraction has 1513 states and 2257 transitions. [2024-11-08 18:10:04,630 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 66.8) internal successors, (334), 5 states have internal predecessors, (334), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-08 18:10:04,630 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 2257 transitions. [2024-11-08 18:10:04,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2024-11-08 18:10:04,635 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:10:04,635 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:10:04,635 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 18:10:04,635 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:10:04,636 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:10:04,636 INFO L85 PathProgramCache]: Analyzing trace with hash -2027310353, now seen corresponding path program 1 times [2024-11-08 18:10:04,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:10:04,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098962992] [2024-11-08 18:10:04,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:10:04,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:10:04,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:05,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-11-08 18:10:05,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:05,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2024-11-08 18:10:05,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:05,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-11-08 18:10:05,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:05,650 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-08 18:10:05,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:10:05,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098962992] [2024-11-08 18:10:05,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098962992] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:10:05,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:10:05,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:10:05,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038658948] [2024-11-08 18:10:05,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:10:05,652 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:10:05,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:10:05,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:10:05,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:10:05,655 INFO L87 Difference]: Start difference. First operand 1513 states and 2257 transitions. Second operand has 5 states, 5 states have (on average 67.0) internal successors, (335), 5 states have internal predecessors, (335), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-08 18:10:06,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:10:06,248 INFO L93 Difference]: Finished difference Result 2732 states and 4074 transitions. [2024-11-08 18:10:06,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:10:06,249 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 67.0) internal successors, (335), 5 states have internal predecessors, (335), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 347 [2024-11-08 18:10:06,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:10:06,254 INFO L225 Difference]: With dead ends: 2732 [2024-11-08 18:10:06,254 INFO L226 Difference]: Without dead ends: 1513 [2024-11-08 18:10:06,259 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:10:06,260 INFO L432 NwaCegarLoop]: 1934 mSDtfsCounter, 2238 mSDsluCounter, 1943 mSDsCounter, 0 mSdLazyCounter, 638 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2241 SdHoareTripleChecker+Valid, 3877 SdHoareTripleChecker+Invalid, 639 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 638 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-08 18:10:06,260 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2241 Valid, 3877 Invalid, 639 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 638 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-08 18:10:06,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1513 states. [2024-11-08 18:10:06,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1513 to 1513. [2024-11-08 18:10:06,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 1508 states have (on average 1.4920424403183024) internal successors, (2250), 1508 states have internal predecessors, (2250), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-08 18:10:06,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 2256 transitions. [2024-11-08 18:10:06,301 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 2256 transitions. Word has length 347 [2024-11-08 18:10:06,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:10:06,303 INFO L471 AbstractCegarLoop]: Abstraction has 1513 states and 2256 transitions. [2024-11-08 18:10:06,303 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 67.0) internal successors, (335), 5 states have internal predecessors, (335), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-08 18:10:06,303 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 2256 transitions. [2024-11-08 18:10:06,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 349 [2024-11-08 18:10:06,309 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:10:06,309 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:10:06,309 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 18:10:06,309 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:10:06,310 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:10:06,310 INFO L85 PathProgramCache]: Analyzing trace with hash -2043171732, now seen corresponding path program 1 times [2024-11-08 18:10:06,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:10:06,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415395887] [2024-11-08 18:10:06,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:10:06,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:10:06,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:07,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-11-08 18:10:07,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:07,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2024-11-08 18:10:07,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:07,414 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-11-08 18:10:07,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:07,421 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-08 18:10:07,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:10:07,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415395887] [2024-11-08 18:10:07,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1415395887] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:10:07,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:10:07,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:10:07,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654771024] [2024-11-08 18:10:07,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:10:07,423 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:10:07,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:10:07,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:10:07,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:10:07,425 INFO L87 Difference]: Start difference. First operand 1513 states and 2256 transitions. Second operand has 5 states, 5 states have (on average 67.2) internal successors, (336), 5 states have internal predecessors, (336), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-08 18:10:08,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:10:08,002 INFO L93 Difference]: Finished difference Result 2732 states and 4072 transitions. [2024-11-08 18:10:08,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:10:08,003 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 67.2) internal successors, (336), 5 states have internal predecessors, (336), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 348 [2024-11-08 18:10:08,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:10:08,011 INFO L225 Difference]: With dead ends: 2732 [2024-11-08 18:10:08,011 INFO L226 Difference]: Without dead ends: 1513 [2024-11-08 18:10:08,014 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:10:08,015 INFO L432 NwaCegarLoop]: 1934 mSDtfsCounter, 2234 mSDsluCounter, 1943 mSDsCounter, 0 mSdLazyCounter, 636 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2237 SdHoareTripleChecker+Valid, 3877 SdHoareTripleChecker+Invalid, 637 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 636 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-08 18:10:08,015 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2237 Valid, 3877 Invalid, 637 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 636 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-08 18:10:08,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1513 states. [2024-11-08 18:10:08,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1513 to 1513. [2024-11-08 18:10:08,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 1508 states have (on average 1.4913793103448276) internal successors, (2249), 1508 states have internal predecessors, (2249), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-08 18:10:08,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 2255 transitions. [2024-11-08 18:10:08,052 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 2255 transitions. Word has length 348 [2024-11-08 18:10:08,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:10:08,053 INFO L471 AbstractCegarLoop]: Abstraction has 1513 states and 2255 transitions. [2024-11-08 18:10:08,054 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 67.2) internal successors, (336), 5 states have internal predecessors, (336), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-08 18:10:08,054 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 2255 transitions. [2024-11-08 18:10:08,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2024-11-08 18:10:08,059 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:10:08,059 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:10:08,060 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 18:10:08,060 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:10:08,060 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:10:08,060 INFO L85 PathProgramCache]: Analyzing trace with hash 311589878, now seen corresponding path program 1 times [2024-11-08 18:10:08,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:10:08,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993710360] [2024-11-08 18:10:08,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:10:08,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:10:08,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:08,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-11-08 18:10:08,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:08,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2024-11-08 18:10:08,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:08,980 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-11-08 18:10:08,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:08,984 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-08 18:10:08,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:10:08,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993710360] [2024-11-08 18:10:08,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993710360] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:10:08,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:10:08,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:10:08,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277687130] [2024-11-08 18:10:08,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:10:08,986 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:10:08,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:10:08,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:10:08,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:10:08,987 INFO L87 Difference]: Start difference. First operand 1513 states and 2255 transitions. Second operand has 5 states, 5 states have (on average 67.4) internal successors, (337), 5 states have internal predecessors, (337), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-08 18:10:09,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:10:09,575 INFO L93 Difference]: Finished difference Result 2732 states and 4070 transitions. [2024-11-08 18:10:09,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:10:09,576 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 67.4) internal successors, (337), 5 states have internal predecessors, (337), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 349 [2024-11-08 18:10:09,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:10:09,582 INFO L225 Difference]: With dead ends: 2732 [2024-11-08 18:10:09,582 INFO L226 Difference]: Without dead ends: 1513 [2024-11-08 18:10:09,584 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:10:09,585 INFO L432 NwaCegarLoop]: 1934 mSDtfsCounter, 4207 mSDsluCounter, 1936 mSDsCounter, 0 mSdLazyCounter, 634 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4210 SdHoareTripleChecker+Valid, 3870 SdHoareTripleChecker+Invalid, 635 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 634 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-08 18:10:09,586 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4210 Valid, 3870 Invalid, 635 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 634 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-08 18:10:09,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1513 states. [2024-11-08 18:10:09,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1513 to 1513. [2024-11-08 18:10:09,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 1508 states have (on average 1.490716180371353) internal successors, (2248), 1508 states have internal predecessors, (2248), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-08 18:10:09,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 2254 transitions. [2024-11-08 18:10:09,619 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 2254 transitions. Word has length 349 [2024-11-08 18:10:09,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:10:09,619 INFO L471 AbstractCegarLoop]: Abstraction has 1513 states and 2254 transitions. [2024-11-08 18:10:09,620 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 67.4) internal successors, (337), 5 states have internal predecessors, (337), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-08 18:10:09,620 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 2254 transitions. [2024-11-08 18:10:09,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2024-11-08 18:10:09,622 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:10:09,623 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:10:09,623 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-08 18:10:09,623 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:10:09,624 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:10:09,626 INFO L85 PathProgramCache]: Analyzing trace with hash 1339057363, now seen corresponding path program 1 times [2024-11-08 18:10:09,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:10:09,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110733873] [2024-11-08 18:10:09,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:10:09,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:10:09,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:10,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-11-08 18:10:10,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:10,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2024-11-08 18:10:10,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:10,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-11-08 18:10:10,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:10,598 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-08 18:10:10,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:10:10,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110733873] [2024-11-08 18:10:10,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1110733873] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:10:10,598 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:10:10,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:10:10,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461131982] [2024-11-08 18:10:10,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:10:10,601 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:10:10,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:10:10,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:10:10,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:10:10,602 INFO L87 Difference]: Start difference. First operand 1513 states and 2254 transitions. Second operand has 5 states, 5 states have (on average 67.6) internal successors, (338), 5 states have internal predecessors, (338), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-08 18:10:11,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:10:11,206 INFO L93 Difference]: Finished difference Result 2732 states and 4068 transitions. [2024-11-08 18:10:11,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:10:11,207 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 67.6) internal successors, (338), 5 states have internal predecessors, (338), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 350 [2024-11-08 18:10:11,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:10:11,213 INFO L225 Difference]: With dead ends: 2732 [2024-11-08 18:10:11,213 INFO L226 Difference]: Without dead ends: 1513 [2024-11-08 18:10:11,216 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:10:11,216 INFO L432 NwaCegarLoop]: 1934 mSDtfsCounter, 4199 mSDsluCounter, 1936 mSDsCounter, 0 mSdLazyCounter, 632 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4202 SdHoareTripleChecker+Valid, 3870 SdHoareTripleChecker+Invalid, 633 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 632 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-08 18:10:11,217 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4202 Valid, 3870 Invalid, 633 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 632 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-08 18:10:11,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1513 states. [2024-11-08 18:10:11,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1513 to 1513. [2024-11-08 18:10:11,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 1508 states have (on average 1.490053050397878) internal successors, (2247), 1508 states have internal predecessors, (2247), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-08 18:10:11,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 2253 transitions. [2024-11-08 18:10:11,259 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 2253 transitions. Word has length 350 [2024-11-08 18:10:11,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:10:11,260 INFO L471 AbstractCegarLoop]: Abstraction has 1513 states and 2253 transitions. [2024-11-08 18:10:11,260 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 67.6) internal successors, (338), 5 states have internal predecessors, (338), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-08 18:10:11,261 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 2253 transitions. [2024-11-08 18:10:11,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 352 [2024-11-08 18:10:11,263 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:10:11,263 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:10:11,264 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-08 18:10:11,264 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:10:11,265 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:10:11,266 INFO L85 PathProgramCache]: Analyzing trace with hash 1477704829, now seen corresponding path program 1 times [2024-11-08 18:10:11,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:10:11,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840969155] [2024-11-08 18:10:11,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:10:11,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:10:11,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:12,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-11-08 18:10:12,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:12,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2024-11-08 18:10:12,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:12,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-11-08 18:10:12,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:12,122 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-08 18:10:12,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:10:12,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840969155] [2024-11-08 18:10:12,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840969155] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:10:12,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:10:12,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:10:12,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637084823] [2024-11-08 18:10:12,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:10:12,125 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:10:12,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:10:12,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:10:12,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:10:12,126 INFO L87 Difference]: Start difference. First operand 1513 states and 2253 transitions. Second operand has 5 states, 5 states have (on average 67.8) internal successors, (339), 5 states have internal predecessors, (339), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-08 18:10:12,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:10:12,686 INFO L93 Difference]: Finished difference Result 2732 states and 4066 transitions. [2024-11-08 18:10:12,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:10:12,690 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 67.8) internal successors, (339), 5 states have internal predecessors, (339), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 351 [2024-11-08 18:10:12,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:10:12,701 INFO L225 Difference]: With dead ends: 2732 [2024-11-08 18:10:12,701 INFO L226 Difference]: Without dead ends: 1513 [2024-11-08 18:10:12,704 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:10:12,705 INFO L432 NwaCegarLoop]: 1934 mSDtfsCounter, 4191 mSDsluCounter, 1936 mSDsCounter, 0 mSdLazyCounter, 630 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4194 SdHoareTripleChecker+Valid, 3870 SdHoareTripleChecker+Invalid, 631 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 630 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-08 18:10:12,705 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4194 Valid, 3870 Invalid, 631 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 630 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-08 18:10:12,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1513 states. [2024-11-08 18:10:12,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1513 to 1513. [2024-11-08 18:10:12,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 1508 states have (on average 1.4893899204244032) internal successors, (2246), 1508 states have internal predecessors, (2246), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-08 18:10:12,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 2252 transitions. [2024-11-08 18:10:12,747 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 2252 transitions. Word has length 351 [2024-11-08 18:10:12,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:10:12,748 INFO L471 AbstractCegarLoop]: Abstraction has 1513 states and 2252 transitions. [2024-11-08 18:10:12,749 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 67.8) internal successors, (339), 5 states have internal predecessors, (339), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-08 18:10:12,749 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 2252 transitions. [2024-11-08 18:10:12,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 353 [2024-11-08 18:10:12,751 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:10:12,752 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:10:12,752 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-08 18:10:12,752 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:10:12,752 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:10:12,753 INFO L85 PathProgramCache]: Analyzing trace with hash 31050938, now seen corresponding path program 1 times [2024-11-08 18:10:12,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:10:12,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469361931] [2024-11-08 18:10:12,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:10:12,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:10:13,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:13,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-11-08 18:10:13,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:13,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2024-11-08 18:10:13,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:13,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-11-08 18:10:13,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:13,908 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-08 18:10:13,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:10:13,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469361931] [2024-11-08 18:10:13,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [469361931] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:10:13,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:10:13,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:10:13,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252998354] [2024-11-08 18:10:13,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:10:13,911 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:10:13,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:10:13,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:10:13,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:10:13,913 INFO L87 Difference]: Start difference. First operand 1513 states and 2252 transitions. Second operand has 5 states, 5 states have (on average 68.0) internal successors, (340), 5 states have internal predecessors, (340), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-08 18:10:14,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:10:14,533 INFO L93 Difference]: Finished difference Result 2732 states and 4064 transitions. [2024-11-08 18:10:14,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:10:14,535 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 68.0) internal successors, (340), 5 states have internal predecessors, (340), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 352 [2024-11-08 18:10:14,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:10:14,542 INFO L225 Difference]: With dead ends: 2732 [2024-11-08 18:10:14,542 INFO L226 Difference]: Without dead ends: 1513 [2024-11-08 18:10:14,545 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:10:14,546 INFO L432 NwaCegarLoop]: 1934 mSDtfsCounter, 2218 mSDsluCounter, 1943 mSDsCounter, 0 mSdLazyCounter, 628 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2221 SdHoareTripleChecker+Valid, 3877 SdHoareTripleChecker+Invalid, 629 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 628 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-08 18:10:14,546 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2221 Valid, 3877 Invalid, 629 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 628 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-08 18:10:14,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1513 states. [2024-11-08 18:10:14,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1513 to 1513. [2024-11-08 18:10:14,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 1508 states have (on average 1.4887267904509285) internal successors, (2245), 1508 states have internal predecessors, (2245), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-08 18:10:14,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 2251 transitions. [2024-11-08 18:10:14,585 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 2251 transitions. Word has length 352 [2024-11-08 18:10:14,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:10:14,586 INFO L471 AbstractCegarLoop]: Abstraction has 1513 states and 2251 transitions. [2024-11-08 18:10:14,586 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 68.0) internal successors, (340), 5 states have internal predecessors, (340), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-08 18:10:14,587 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 2251 transitions. [2024-11-08 18:10:14,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 354 [2024-11-08 18:10:14,590 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:10:14,590 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:10:14,591 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-08 18:10:14,591 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:10:14,591 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:10:14,592 INFO L85 PathProgramCache]: Analyzing trace with hash 2061431940, now seen corresponding path program 1 times [2024-11-08 18:10:14,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:10:14,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029968052] [2024-11-08 18:10:14,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:10:14,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:10:14,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:15,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-11-08 18:10:15,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:15,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2024-11-08 18:10:15,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:15,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-11-08 18:10:15,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:15,821 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-08 18:10:15,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:10:15,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029968052] [2024-11-08 18:10:15,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1029968052] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:10:15,822 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:10:15,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:10:15,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287755719] [2024-11-08 18:10:15,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:10:15,824 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:10:15,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:10:15,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:10:15,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:10:15,825 INFO L87 Difference]: Start difference. First operand 1513 states and 2251 transitions. Second operand has 5 states, 5 states have (on average 68.2) internal successors, (341), 5 states have internal predecessors, (341), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-08 18:10:16,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:10:16,356 INFO L93 Difference]: Finished difference Result 2732 states and 4062 transitions. [2024-11-08 18:10:16,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:10:16,357 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 68.2) internal successors, (341), 5 states have internal predecessors, (341), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 353 [2024-11-08 18:10:16,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:10:16,363 INFO L225 Difference]: With dead ends: 2732 [2024-11-08 18:10:16,364 INFO L226 Difference]: Without dead ends: 1513 [2024-11-08 18:10:16,366 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:10:16,367 INFO L432 NwaCegarLoop]: 1934 mSDtfsCounter, 4175 mSDsluCounter, 1936 mSDsCounter, 0 mSdLazyCounter, 626 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4178 SdHoareTripleChecker+Valid, 3870 SdHoareTripleChecker+Invalid, 627 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 626 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-08 18:10:16,367 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4178 Valid, 3870 Invalid, 627 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 626 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-08 18:10:16,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1513 states. [2024-11-08 18:10:16,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1513 to 1513. [2024-11-08 18:10:16,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 1508 states have (on average 1.4880636604774535) internal successors, (2244), 1508 states have internal predecessors, (2244), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-08 18:10:16,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 2250 transitions. [2024-11-08 18:10:16,404 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 2250 transitions. Word has length 353 [2024-11-08 18:10:16,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:10:16,405 INFO L471 AbstractCegarLoop]: Abstraction has 1513 states and 2250 transitions. [2024-11-08 18:10:16,406 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 68.2) internal successors, (341), 5 states have internal predecessors, (341), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-08 18:10:16,406 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 2250 transitions. [2024-11-08 18:10:16,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2024-11-08 18:10:16,409 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:10:16,410 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:10:16,410 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-08 18:10:16,410 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:10:16,410 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:10:16,411 INFO L85 PathProgramCache]: Analyzing trace with hash 1896784929, now seen corresponding path program 1 times [2024-11-08 18:10:16,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:10:16,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72886010] [2024-11-08 18:10:16,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:10:16,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:10:16,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:17,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-11-08 18:10:17,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:17,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2024-11-08 18:10:17,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:17,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-11-08 18:10:17,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:17,368 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-08 18:10:17,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:10:17,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72886010] [2024-11-08 18:10:17,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [72886010] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:10:17,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:10:17,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:10:17,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093172459] [2024-11-08 18:10:17,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:10:17,369 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:10:17,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:10:17,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:10:17,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:10:17,371 INFO L87 Difference]: Start difference. First operand 1513 states and 2250 transitions. Second operand has 5 states, 5 states have (on average 68.4) internal successors, (342), 5 states have internal predecessors, (342), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-08 18:10:17,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:10:17,849 INFO L93 Difference]: Finished difference Result 2732 states and 4060 transitions. [2024-11-08 18:10:17,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:10:17,850 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 68.4) internal successors, (342), 5 states have internal predecessors, (342), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 354 [2024-11-08 18:10:17,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:10:17,857 INFO L225 Difference]: With dead ends: 2732 [2024-11-08 18:10:17,857 INFO L226 Difference]: Without dead ends: 1513 [2024-11-08 18:10:17,859 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:10:17,860 INFO L432 NwaCegarLoop]: 1934 mSDtfsCounter, 4167 mSDsluCounter, 1936 mSDsCounter, 0 mSdLazyCounter, 624 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4170 SdHoareTripleChecker+Valid, 3870 SdHoareTripleChecker+Invalid, 625 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 624 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 18:10:17,860 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4170 Valid, 3870 Invalid, 625 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 624 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 18:10:17,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1513 states. [2024-11-08 18:10:17,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1513 to 1513. [2024-11-08 18:10:17,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 1508 states have (on average 1.4874005305039788) internal successors, (2243), 1508 states have internal predecessors, (2243), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-08 18:10:17,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 2249 transitions. [2024-11-08 18:10:17,888 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 2249 transitions. Word has length 354 [2024-11-08 18:10:17,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:10:17,889 INFO L471 AbstractCegarLoop]: Abstraction has 1513 states and 2249 transitions. [2024-11-08 18:10:17,889 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 68.4) internal successors, (342), 5 states have internal predecessors, (342), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-08 18:10:17,889 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 2249 transitions. [2024-11-08 18:10:17,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 356 [2024-11-08 18:10:17,892 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:10:17,892 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:10:17,892 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-08 18:10:17,892 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:10:17,893 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:10:17,893 INFO L85 PathProgramCache]: Analyzing trace with hash 776217611, now seen corresponding path program 1 times [2024-11-08 18:10:17,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:10:17,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029705009] [2024-11-08 18:10:17,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:10:17,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:10:18,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:18,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-11-08 18:10:18,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:18,736 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2024-11-08 18:10:18,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:18,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-11-08 18:10:18,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:18,742 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-08 18:10:18,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:10:18,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029705009] [2024-11-08 18:10:18,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2029705009] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:10:18,744 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:10:18,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:10:18,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065934635] [2024-11-08 18:10:18,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:10:18,745 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:10:18,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:10:18,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:10:18,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:10:18,747 INFO L87 Difference]: Start difference. First operand 1513 states and 2249 transitions. Second operand has 5 states, 5 states have (on average 68.6) internal successors, (343), 5 states have internal predecessors, (343), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-08 18:10:19,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:10:19,264 INFO L93 Difference]: Finished difference Result 2732 states and 4058 transitions. [2024-11-08 18:10:19,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:10:19,265 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 68.6) internal successors, (343), 5 states have internal predecessors, (343), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 355 [2024-11-08 18:10:19,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:10:19,274 INFO L225 Difference]: With dead ends: 2732 [2024-11-08 18:10:19,274 INFO L226 Difference]: Without dead ends: 1513 [2024-11-08 18:10:19,277 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:10:19,277 INFO L432 NwaCegarLoop]: 1934 mSDtfsCounter, 2206 mSDsluCounter, 1943 mSDsCounter, 0 mSdLazyCounter, 622 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2209 SdHoareTripleChecker+Valid, 3877 SdHoareTripleChecker+Invalid, 623 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 622 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-08 18:10:19,278 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2209 Valid, 3877 Invalid, 623 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 622 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-08 18:10:19,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1513 states. [2024-11-08 18:10:19,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1513 to 1513. [2024-11-08 18:10:19,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 1508 states have (on average 1.486737400530504) internal successors, (2242), 1508 states have internal predecessors, (2242), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-08 18:10:19,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 2248 transitions. [2024-11-08 18:10:19,309 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 2248 transitions. Word has length 355 [2024-11-08 18:10:19,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:10:19,310 INFO L471 AbstractCegarLoop]: Abstraction has 1513 states and 2248 transitions. [2024-11-08 18:10:19,310 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 68.6) internal successors, (343), 5 states have internal predecessors, (343), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-08 18:10:19,311 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 2248 transitions. [2024-11-08 18:10:19,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 357 [2024-11-08 18:10:19,313 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:10:19,314 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:10:19,314 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-08 18:10:19,314 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:10:19,314 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:10:19,315 INFO L85 PathProgramCache]: Analyzing trace with hash -607540472, now seen corresponding path program 1 times [2024-11-08 18:10:19,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:10:19,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753075431] [2024-11-08 18:10:19,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:10:19,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:10:19,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:20,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-11-08 18:10:20,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:20,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2024-11-08 18:10:20,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:20,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-11-08 18:10:20,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:20,129 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-08 18:10:20,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:10:20,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753075431] [2024-11-08 18:10:20,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753075431] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:10:20,130 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:10:20,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:10:20,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094792108] [2024-11-08 18:10:20,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:10:20,131 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:10:20,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:10:20,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:10:20,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:10:20,132 INFO L87 Difference]: Start difference. First operand 1513 states and 2248 transitions. Second operand has 5 states, 5 states have (on average 68.8) internal successors, (344), 5 states have internal predecessors, (344), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-08 18:10:20,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:10:20,570 INFO L93 Difference]: Finished difference Result 2732 states and 4056 transitions. [2024-11-08 18:10:20,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:10:20,570 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 68.8) internal successors, (344), 5 states have internal predecessors, (344), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 356 [2024-11-08 18:10:20,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:10:20,577 INFO L225 Difference]: With dead ends: 2732 [2024-11-08 18:10:20,577 INFO L226 Difference]: Without dead ends: 1513 [2024-11-08 18:10:20,579 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:10:20,580 INFO L432 NwaCegarLoop]: 1934 mSDtfsCounter, 2202 mSDsluCounter, 1943 mSDsCounter, 0 mSdLazyCounter, 620 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2205 SdHoareTripleChecker+Valid, 3877 SdHoareTripleChecker+Invalid, 621 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 620 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 18:10:20,580 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2205 Valid, 3877 Invalid, 621 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 620 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 18:10:20,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1513 states. [2024-11-08 18:10:20,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1513 to 1513. [2024-11-08 18:10:20,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 1508 states have (on average 1.4860742705570291) internal successors, (2241), 1508 states have internal predecessors, (2241), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-08 18:10:20,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 2247 transitions. [2024-11-08 18:10:20,607 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 2247 transitions. Word has length 356 [2024-11-08 18:10:20,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:10:20,608 INFO L471 AbstractCegarLoop]: Abstraction has 1513 states and 2247 transitions. [2024-11-08 18:10:20,608 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 68.8) internal successors, (344), 5 states have internal predecessors, (344), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-08 18:10:20,608 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 2247 transitions. [2024-11-08 18:10:20,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 358 [2024-11-08 18:10:20,611 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:10:20,611 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:10:20,611 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-08 18:10:20,612 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:10:20,612 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:10:20,612 INFO L85 PathProgramCache]: Analyzing trace with hash 1437879058, now seen corresponding path program 1 times [2024-11-08 18:10:20,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:10:20,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870397020] [2024-11-08 18:10:20,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:10:20,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:10:20,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:21,490 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-11-08 18:10:21,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:21,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2024-11-08 18:10:21,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:21,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-11-08 18:10:21,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:21,498 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-08 18:10:21,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:10:21,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [870397020] [2024-11-08 18:10:21,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [870397020] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:10:21,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:10:21,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:10:21,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168750790] [2024-11-08 18:10:21,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:10:21,501 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:10:21,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:10:21,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:10:21,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:10:21,502 INFO L87 Difference]: Start difference. First operand 1513 states and 2247 transitions. Second operand has 5 states, 5 states have (on average 69.0) internal successors, (345), 5 states have internal predecessors, (345), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-08 18:10:21,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:10:21,944 INFO L93 Difference]: Finished difference Result 2732 states and 4054 transitions. [2024-11-08 18:10:21,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:10:21,945 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 69.0) internal successors, (345), 5 states have internal predecessors, (345), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 357 [2024-11-08 18:10:21,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:10:21,950 INFO L225 Difference]: With dead ends: 2732 [2024-11-08 18:10:21,950 INFO L226 Difference]: Without dead ends: 1513 [2024-11-08 18:10:21,952 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:10:21,953 INFO L432 NwaCegarLoop]: 1934 mSDtfsCounter, 4143 mSDsluCounter, 1936 mSDsCounter, 0 mSdLazyCounter, 618 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4146 SdHoareTripleChecker+Valid, 3870 SdHoareTripleChecker+Invalid, 619 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 618 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 18:10:21,953 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4146 Valid, 3870 Invalid, 619 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 618 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 18:10:21,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1513 states. [2024-11-08 18:10:21,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1513 to 1513. [2024-11-08 18:10:21,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 1508 states have (on average 1.4854111405835544) internal successors, (2240), 1508 states have internal predecessors, (2240), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-08 18:10:21,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 2246 transitions. [2024-11-08 18:10:21,979 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 2246 transitions. Word has length 357 [2024-11-08 18:10:21,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:10:21,980 INFO L471 AbstractCegarLoop]: Abstraction has 1513 states and 2246 transitions. [2024-11-08 18:10:21,981 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 69.0) internal successors, (345), 5 states have internal predecessors, (345), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-08 18:10:21,981 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 2246 transitions. [2024-11-08 18:10:21,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 359 [2024-11-08 18:10:21,984 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:10:21,984 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:10:21,984 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-08 18:10:21,985 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:10:21,985 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:10:21,985 INFO L85 PathProgramCache]: Analyzing trace with hash 705012079, now seen corresponding path program 1 times [2024-11-08 18:10:21,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:10:21,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123404095] [2024-11-08 18:10:21,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:10:21,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:10:22,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:22,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-11-08 18:10:22,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:22,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2024-11-08 18:10:22,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:22,759 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-11-08 18:10:22,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:22,763 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-08 18:10:22,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:10:22,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123404095] [2024-11-08 18:10:22,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123404095] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:10:22,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:10:22,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:10:22,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985522489] [2024-11-08 18:10:22,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:10:22,766 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:10:22,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:10:22,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:10:22,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:10:22,768 INFO L87 Difference]: Start difference. First operand 1513 states and 2246 transitions. Second operand has 5 states, 5 states have (on average 69.2) internal successors, (346), 5 states have internal predecessors, (346), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-08 18:10:23,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:10:23,199 INFO L93 Difference]: Finished difference Result 2732 states and 4052 transitions. [2024-11-08 18:10:23,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:10:23,200 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 69.2) internal successors, (346), 5 states have internal predecessors, (346), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 358 [2024-11-08 18:10:23,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:10:23,204 INFO L225 Difference]: With dead ends: 2732 [2024-11-08 18:10:23,204 INFO L226 Difference]: Without dead ends: 1513 [2024-11-08 18:10:23,207 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:10:23,207 INFO L432 NwaCegarLoop]: 1934 mSDtfsCounter, 2194 mSDsluCounter, 1943 mSDsCounter, 0 mSdLazyCounter, 616 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2197 SdHoareTripleChecker+Valid, 3877 SdHoareTripleChecker+Invalid, 617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 616 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 18:10:23,208 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2197 Valid, 3877 Invalid, 617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 616 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 18:10:23,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1513 states. [2024-11-08 18:10:23,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1513 to 1513. [2024-11-08 18:10:23,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 1508 states have (on average 1.4847480106100797) internal successors, (2239), 1508 states have internal predecessors, (2239), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-08 18:10:23,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 2245 transitions. [2024-11-08 18:10:23,234 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 2245 transitions. Word has length 358 [2024-11-08 18:10:23,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:10:23,235 INFO L471 AbstractCegarLoop]: Abstraction has 1513 states and 2245 transitions. [2024-11-08 18:10:23,235 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 69.2) internal successors, (346), 5 states have internal predecessors, (346), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-08 18:10:23,235 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 2245 transitions. [2024-11-08 18:10:23,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 360 [2024-11-08 18:10:23,238 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:10:23,238 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:10:23,238 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-08 18:10:23,238 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:10:23,239 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:10:23,239 INFO L85 PathProgramCache]: Analyzing trace with hash -1530910311, now seen corresponding path program 1 times [2024-11-08 18:10:23,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:10:23,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664526146] [2024-11-08 18:10:23,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:10:23,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:10:23,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:23,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-11-08 18:10:23,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:23,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2024-11-08 18:10:23,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:23,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-11-08 18:10:23,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:23,977 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-08 18:10:23,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:10:23,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664526146] [2024-11-08 18:10:23,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [664526146] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:10:23,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:10:23,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:10:23,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137994048] [2024-11-08 18:10:23,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:10:23,981 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:10:23,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:10:23,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:10:23,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:10:23,983 INFO L87 Difference]: Start difference. First operand 1513 states and 2245 transitions. Second operand has 5 states, 5 states have (on average 69.4) internal successors, (347), 5 states have internal predecessors, (347), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-08 18:10:24,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:10:24,488 INFO L93 Difference]: Finished difference Result 2732 states and 4050 transitions. [2024-11-08 18:10:24,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:10:24,489 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 69.4) internal successors, (347), 5 states have internal predecessors, (347), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 359 [2024-11-08 18:10:24,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:10:24,493 INFO L225 Difference]: With dead ends: 2732 [2024-11-08 18:10:24,493 INFO L226 Difference]: Without dead ends: 1513 [2024-11-08 18:10:24,495 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:10:24,496 INFO L432 NwaCegarLoop]: 1934 mSDtfsCounter, 4127 mSDsluCounter, 1936 mSDsCounter, 0 mSdLazyCounter, 614 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4130 SdHoareTripleChecker+Valid, 3870 SdHoareTripleChecker+Invalid, 615 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 614 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-08 18:10:24,496 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4130 Valid, 3870 Invalid, 615 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 614 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-08 18:10:24,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1513 states. [2024-11-08 18:10:24,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1513 to 1513. [2024-11-08 18:10:24,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 1508 states have (on average 1.4840848806366047) internal successors, (2238), 1508 states have internal predecessors, (2238), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-08 18:10:24,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 2244 transitions. [2024-11-08 18:10:24,534 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 2244 transitions. Word has length 359 [2024-11-08 18:10:24,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:10:24,535 INFO L471 AbstractCegarLoop]: Abstraction has 1513 states and 2244 transitions. [2024-11-08 18:10:24,535 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 69.4) internal successors, (347), 5 states have internal predecessors, (347), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-08 18:10:24,535 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 2244 transitions. [2024-11-08 18:10:24,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 361 [2024-11-08 18:10:24,538 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:10:24,538 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:10:24,538 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-08 18:10:24,538 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:10:24,539 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:10:24,539 INFO L85 PathProgramCache]: Analyzing trace with hash 761087830, now seen corresponding path program 1 times [2024-11-08 18:10:24,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:10:24,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796093202] [2024-11-08 18:10:24,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:10:24,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:10:24,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:25,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-11-08 18:10:25,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:25,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2024-11-08 18:10:25,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:25,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-11-08 18:10:25,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:25,239 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-08 18:10:25,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:10:25,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796093202] [2024-11-08 18:10:25,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796093202] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:10:25,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:10:25,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:10:25,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919311855] [2024-11-08 18:10:25,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:10:25,240 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:10:25,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:10:25,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:10:25,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:10:25,242 INFO L87 Difference]: Start difference. First operand 1513 states and 2244 transitions. Second operand has 5 states, 5 states have (on average 69.6) internal successors, (348), 5 states have internal predecessors, (348), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-08 18:10:25,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:10:25,634 INFO L93 Difference]: Finished difference Result 2732 states and 4048 transitions. [2024-11-08 18:10:25,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:10:25,635 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 69.6) internal successors, (348), 5 states have internal predecessors, (348), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 360 [2024-11-08 18:10:25,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:10:25,639 INFO L225 Difference]: With dead ends: 2732 [2024-11-08 18:10:25,639 INFO L226 Difference]: Without dead ends: 1513 [2024-11-08 18:10:25,641 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:10:25,642 INFO L432 NwaCegarLoop]: 1934 mSDtfsCounter, 2186 mSDsluCounter, 1943 mSDsCounter, 0 mSdLazyCounter, 612 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2189 SdHoareTripleChecker+Valid, 3877 SdHoareTripleChecker+Invalid, 613 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 612 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 18:10:25,643 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2189 Valid, 3877 Invalid, 613 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 612 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 18:10:25,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1513 states. [2024-11-08 18:10:25,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1513 to 1513. [2024-11-08 18:10:25,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 1508 states have (on average 1.48342175066313) internal successors, (2237), 1508 states have internal predecessors, (2237), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-08 18:10:25,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 2243 transitions. [2024-11-08 18:10:25,667 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 2243 transitions. Word has length 360 [2024-11-08 18:10:25,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:10:25,668 INFO L471 AbstractCegarLoop]: Abstraction has 1513 states and 2243 transitions. [2024-11-08 18:10:25,668 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 69.6) internal successors, (348), 5 states have internal predecessors, (348), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-08 18:10:25,668 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 2243 transitions. [2024-11-08 18:10:25,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 362 [2024-11-08 18:10:25,671 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:10:25,671 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:10:25,671 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-08 18:10:25,671 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:10:25,672 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:10:25,672 INFO L85 PathProgramCache]: Analyzing trace with hash 1058570144, now seen corresponding path program 1 times [2024-11-08 18:10:25,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:10:25,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411922047] [2024-11-08 18:10:25,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:10:25,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:10:25,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:26,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-11-08 18:10:26,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:26,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2024-11-08 18:10:26,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:26,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-11-08 18:10:26,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:26,466 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-08 18:10:26,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:10:26,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411922047] [2024-11-08 18:10:26,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411922047] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:10:26,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:10:26,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:10:26,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719439566] [2024-11-08 18:10:26,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:10:26,467 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:10:26,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:10:26,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:10:26,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:10:26,472 INFO L87 Difference]: Start difference. First operand 1513 states and 2243 transitions. Second operand has 5 states, 5 states have (on average 69.8) internal successors, (349), 5 states have internal predecessors, (349), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-08 18:10:26,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:10:26,877 INFO L93 Difference]: Finished difference Result 2732 states and 4046 transitions. [2024-11-08 18:10:26,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:10:26,880 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 69.8) internal successors, (349), 5 states have internal predecessors, (349), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 361 [2024-11-08 18:10:26,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:10:26,884 INFO L225 Difference]: With dead ends: 2732 [2024-11-08 18:10:26,884 INFO L226 Difference]: Without dead ends: 1513 [2024-11-08 18:10:26,887 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:10:26,888 INFO L432 NwaCegarLoop]: 1934 mSDtfsCounter, 2182 mSDsluCounter, 1943 mSDsCounter, 0 mSdLazyCounter, 610 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2185 SdHoareTripleChecker+Valid, 3877 SdHoareTripleChecker+Invalid, 611 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 610 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 18:10:26,888 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2185 Valid, 3877 Invalid, 611 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 610 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 18:10:26,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1513 states. [2024-11-08 18:10:26,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1513 to 1513. [2024-11-08 18:10:26,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 1508 states have (on average 1.4827586206896552) internal successors, (2236), 1508 states have internal predecessors, (2236), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-08 18:10:26,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 2242 transitions. [2024-11-08 18:10:26,914 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 2242 transitions. Word has length 361 [2024-11-08 18:10:26,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:10:26,915 INFO L471 AbstractCegarLoop]: Abstraction has 1513 states and 2242 transitions. [2024-11-08 18:10:26,915 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 69.8) internal successors, (349), 5 states have internal predecessors, (349), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-08 18:10:26,916 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 2242 transitions. [2024-11-08 18:10:26,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 363 [2024-11-08 18:10:26,918 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:10:26,919 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:10:26,919 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-08 18:10:26,919 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:10:26,919 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:10:26,920 INFO L85 PathProgramCache]: Analyzing trace with hash -519349059, now seen corresponding path program 1 times [2024-11-08 18:10:26,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:10:26,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333996059] [2024-11-08 18:10:26,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:10:26,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:10:27,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:27,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-11-08 18:10:27,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:27,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2024-11-08 18:10:27,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:27,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-11-08 18:10:27,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:27,706 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-08 18:10:27,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:10:27,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333996059] [2024-11-08 18:10:27,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333996059] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:10:27,707 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:10:27,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:10:27,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326805065] [2024-11-08 18:10:27,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:10:27,708 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:10:27,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:10:27,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:10:27,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:10:27,710 INFO L87 Difference]: Start difference. First operand 1513 states and 2242 transitions. Second operand has 5 states, 5 states have (on average 70.0) internal successors, (350), 5 states have internal predecessors, (350), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-08 18:10:28,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:10:28,100 INFO L93 Difference]: Finished difference Result 2732 states and 4044 transitions. [2024-11-08 18:10:28,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:10:28,101 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 70.0) internal successors, (350), 5 states have internal predecessors, (350), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 362 [2024-11-08 18:10:28,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:10:28,105 INFO L225 Difference]: With dead ends: 2732 [2024-11-08 18:10:28,105 INFO L226 Difference]: Without dead ends: 1513 [2024-11-08 18:10:28,108 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:10:28,108 INFO L432 NwaCegarLoop]: 1934 mSDtfsCounter, 2178 mSDsluCounter, 1943 mSDsCounter, 0 mSdLazyCounter, 608 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2181 SdHoareTripleChecker+Valid, 3877 SdHoareTripleChecker+Invalid, 609 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 608 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 18:10:28,108 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2181 Valid, 3877 Invalid, 609 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 608 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 18:10:28,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1513 states. [2024-11-08 18:10:28,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1513 to 1513. [2024-11-08 18:10:28,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 1508 states have (on average 1.4820954907161803) internal successors, (2235), 1508 states have internal predecessors, (2235), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-08 18:10:28,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 2241 transitions. [2024-11-08 18:10:28,132 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 2241 transitions. Word has length 362 [2024-11-08 18:10:28,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:10:28,133 INFO L471 AbstractCegarLoop]: Abstraction has 1513 states and 2241 transitions. [2024-11-08 18:10:28,133 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 70.0) internal successors, (350), 5 states have internal predecessors, (350), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-08 18:10:28,133 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 2241 transitions. [2024-11-08 18:10:28,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 364 [2024-11-08 18:10:28,136 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:10:28,136 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:10:28,136 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-08 18:10:28,137 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:10:28,137 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:10:28,137 INFO L85 PathProgramCache]: Analyzing trace with hash 1485704487, now seen corresponding path program 1 times [2024-11-08 18:10:28,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:10:28,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118093025] [2024-11-08 18:10:28,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:10:28,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:10:28,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:28,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-11-08 18:10:28,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:28,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2024-11-08 18:10:28,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:28,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-11-08 18:10:28,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:28,951 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-08 18:10:28,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:10:28,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118093025] [2024-11-08 18:10:28,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118093025] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:10:28,951 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:10:28,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:10:28,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527204855] [2024-11-08 18:10:28,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:10:28,953 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:10:28,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:10:28,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:10:28,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:10:28,955 INFO L87 Difference]: Start difference. First operand 1513 states and 2241 transitions. Second operand has 5 states, 5 states have (on average 70.2) internal successors, (351), 5 states have internal predecessors, (351), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-08 18:10:29,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:10:29,436 INFO L93 Difference]: Finished difference Result 2732 states and 4042 transitions. [2024-11-08 18:10:29,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:10:29,437 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 70.2) internal successors, (351), 5 states have internal predecessors, (351), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 363 [2024-11-08 18:10:29,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:10:29,440 INFO L225 Difference]: With dead ends: 2732 [2024-11-08 18:10:29,440 INFO L226 Difference]: Without dead ends: 1513 [2024-11-08 18:10:29,442 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:10:29,443 INFO L432 NwaCegarLoop]: 1934 mSDtfsCounter, 2174 mSDsluCounter, 1943 mSDsCounter, 0 mSdLazyCounter, 606 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2177 SdHoareTripleChecker+Valid, 3877 SdHoareTripleChecker+Invalid, 607 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 606 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 18:10:29,443 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2177 Valid, 3877 Invalid, 607 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 606 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 18:10:29,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1513 states. [2024-11-08 18:10:29,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1513 to 1513. [2024-11-08 18:10:29,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 1508 states have (on average 1.4814323607427056) internal successors, (2234), 1508 states have internal predecessors, (2234), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-08 18:10:29,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 2240 transitions. [2024-11-08 18:10:29,478 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 2240 transitions. Word has length 363 [2024-11-08 18:10:29,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:10:29,479 INFO L471 AbstractCegarLoop]: Abstraction has 1513 states and 2240 transitions. [2024-11-08 18:10:29,479 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 70.2) internal successors, (351), 5 states have internal predecessors, (351), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-08 18:10:29,479 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 2240 transitions. [2024-11-08 18:10:29,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 365 [2024-11-08 18:10:29,483 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:10:29,483 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:10:29,484 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-08 18:10:29,484 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:10:29,484 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:10:29,485 INFO L85 PathProgramCache]: Analyzing trace with hash -1444240988, now seen corresponding path program 1 times [2024-11-08 18:10:29,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:10:29,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735893479] [2024-11-08 18:10:29,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:10:29,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:10:29,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:30,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-11-08 18:10:30,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:30,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2024-11-08 18:10:30,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:30,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-11-08 18:10:30,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:30,247 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-08 18:10:30,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:10:30,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735893479] [2024-11-08 18:10:30,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735893479] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:10:30,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:10:30,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:10:30,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560926772] [2024-11-08 18:10:30,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:10:30,248 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:10:30,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:10:30,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:10:30,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:10:30,249 INFO L87 Difference]: Start difference. First operand 1513 states and 2240 transitions. Second operand has 5 states, 5 states have (on average 70.4) internal successors, (352), 5 states have internal predecessors, (352), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-08 18:10:30,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:10:30,729 INFO L93 Difference]: Finished difference Result 2732 states and 4040 transitions. [2024-11-08 18:10:30,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:10:30,730 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 70.4) internal successors, (352), 5 states have internal predecessors, (352), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 364 [2024-11-08 18:10:30,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:10:30,733 INFO L225 Difference]: With dead ends: 2732 [2024-11-08 18:10:30,733 INFO L226 Difference]: Without dead ends: 1513 [2024-11-08 18:10:30,736 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:10:30,737 INFO L432 NwaCegarLoop]: 1934 mSDtfsCounter, 4087 mSDsluCounter, 1936 mSDsCounter, 0 mSdLazyCounter, 604 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4090 SdHoareTripleChecker+Valid, 3870 SdHoareTripleChecker+Invalid, 605 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 604 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 18:10:30,738 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4090 Valid, 3870 Invalid, 605 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 604 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 18:10:30,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1513 states. [2024-11-08 18:10:30,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1513 to 1513. [2024-11-08 18:10:30,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 1508 states have (on average 1.4807692307692308) internal successors, (2233), 1508 states have internal predecessors, (2233), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-08 18:10:30,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 2239 transitions. [2024-11-08 18:10:30,773 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 2239 transitions. Word has length 364 [2024-11-08 18:10:30,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:10:30,774 INFO L471 AbstractCegarLoop]: Abstraction has 1513 states and 2239 transitions. [2024-11-08 18:10:30,776 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 70.4) internal successors, (352), 5 states have internal predecessors, (352), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-08 18:10:30,776 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 2239 transitions. [2024-11-08 18:10:30,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 366 [2024-11-08 18:10:30,778 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:10:30,779 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:10:30,779 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-08 18:10:30,779 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:10:30,779 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:10:30,780 INFO L85 PathProgramCache]: Analyzing trace with hash -720268754, now seen corresponding path program 1 times [2024-11-08 18:10:30,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:10:30,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509916879] [2024-11-08 18:10:30,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:10:30,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:10:31,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:31,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-11-08 18:10:31,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:31,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2024-11-08 18:10:31,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:31,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-11-08 18:10:31,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:31,393 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-08 18:10:31,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:10:31,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509916879] [2024-11-08 18:10:31,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [509916879] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:10:31,393 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:10:31,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:10:31,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455286299] [2024-11-08 18:10:31,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:10:31,394 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:10:31,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:10:31,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:10:31,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:10:31,396 INFO L87 Difference]: Start difference. First operand 1513 states and 2239 transitions. Second operand has 5 states, 5 states have (on average 70.6) internal successors, (353), 5 states have internal predecessors, (353), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-08 18:10:31,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:10:31,779 INFO L93 Difference]: Finished difference Result 2732 states and 4038 transitions. [2024-11-08 18:10:31,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:10:31,780 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 70.6) internal successors, (353), 5 states have internal predecessors, (353), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 365 [2024-11-08 18:10:31,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:10:31,783 INFO L225 Difference]: With dead ends: 2732 [2024-11-08 18:10:31,783 INFO L226 Difference]: Without dead ends: 1513 [2024-11-08 18:10:31,784 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:10:31,785 INFO L432 NwaCegarLoop]: 1934 mSDtfsCounter, 2166 mSDsluCounter, 1943 mSDsCounter, 0 mSdLazyCounter, 602 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2169 SdHoareTripleChecker+Valid, 3877 SdHoareTripleChecker+Invalid, 603 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 602 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 18:10:31,785 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2169 Valid, 3877 Invalid, 603 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 602 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 18:10:31,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1513 states. [2024-11-08 18:10:31,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1513 to 1513. [2024-11-08 18:10:31,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 1508 states have (on average 1.4801061007957559) internal successors, (2232), 1508 states have internal predecessors, (2232), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-08 18:10:31,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 2238 transitions. [2024-11-08 18:10:31,814 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 2238 transitions. Word has length 365 [2024-11-08 18:10:31,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:10:31,815 INFO L471 AbstractCegarLoop]: Abstraction has 1513 states and 2238 transitions. [2024-11-08 18:10:31,815 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 70.6) internal successors, (353), 5 states have internal predecessors, (353), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-08 18:10:31,816 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 2238 transitions. [2024-11-08 18:10:31,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 367 [2024-11-08 18:10:31,818 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:10:31,818 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:10:31,818 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-08 18:10:31,818 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:10:31,819 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:10:31,819 INFO L85 PathProgramCache]: Analyzing trace with hash -1770662389, now seen corresponding path program 1 times [2024-11-08 18:10:31,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:10:31,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449644914] [2024-11-08 18:10:31,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:10:31,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:10:32,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:32,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-11-08 18:10:32,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:32,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2024-11-08 18:10:32,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:32,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-11-08 18:10:32,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:32,442 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-08 18:10:32,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:10:32,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449644914] [2024-11-08 18:10:32,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [449644914] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:10:32,443 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:10:32,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:10:32,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651086025] [2024-11-08 18:10:32,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:10:32,444 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:10:32,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:10:32,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:10:32,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:10:32,446 INFO L87 Difference]: Start difference. First operand 1513 states and 2238 transitions. Second operand has 5 states, 5 states have (on average 70.8) internal successors, (354), 5 states have internal predecessors, (354), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-08 18:10:33,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:10:33,003 INFO L93 Difference]: Finished difference Result 2732 states and 4036 transitions. [2024-11-08 18:10:33,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:10:33,004 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 70.8) internal successors, (354), 5 states have internal predecessors, (354), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 366 [2024-11-08 18:10:33,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:10:33,007 INFO L225 Difference]: With dead ends: 2732 [2024-11-08 18:10:33,007 INFO L226 Difference]: Without dead ends: 1513 [2024-11-08 18:10:33,009 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:10:33,009 INFO L432 NwaCegarLoop]: 1934 mSDtfsCounter, 2162 mSDsluCounter, 1943 mSDsCounter, 0 mSdLazyCounter, 600 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2165 SdHoareTripleChecker+Valid, 3877 SdHoareTripleChecker+Invalid, 601 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 600 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-08 18:10:33,009 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2165 Valid, 3877 Invalid, 601 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 600 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-08 18:10:33,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1513 states. [2024-11-08 18:10:33,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1513 to 1513. [2024-11-08 18:10:33,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 1508 states have (on average 1.4794429708222812) internal successors, (2231), 1508 states have internal predecessors, (2231), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-08 18:10:33,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 2237 transitions. [2024-11-08 18:10:33,036 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 2237 transitions. Word has length 366 [2024-11-08 18:10:33,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:10:33,036 INFO L471 AbstractCegarLoop]: Abstraction has 1513 states and 2237 transitions. [2024-11-08 18:10:33,037 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 70.8) internal successors, (354), 5 states have internal predecessors, (354), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-08 18:10:33,037 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 2237 transitions. [2024-11-08 18:10:33,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 368 [2024-11-08 18:10:33,039 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:10:33,039 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:10:33,040 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-08 18:10:33,040 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:10:33,040 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:10:33,041 INFO L85 PathProgramCache]: Analyzing trace with hash -390869323, now seen corresponding path program 1 times [2024-11-08 18:10:33,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:10:33,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146125536] [2024-11-08 18:10:33,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:10:33,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:10:33,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:33,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-11-08 18:10:33,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:33,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2024-11-08 18:10:33,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:33,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-11-08 18:10:33,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:33,746 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-08 18:10:33,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:10:33,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146125536] [2024-11-08 18:10:33,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2146125536] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:10:33,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:10:33,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:10:33,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969386774] [2024-11-08 18:10:33,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:10:33,747 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:10:33,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:10:33,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:10:33,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:10:33,748 INFO L87 Difference]: Start difference. First operand 1513 states and 2237 transitions. Second operand has 5 states, 5 states have (on average 71.0) internal successors, (355), 5 states have internal predecessors, (355), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-08 18:10:34,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:10:34,181 INFO L93 Difference]: Finished difference Result 2732 states and 4034 transitions. [2024-11-08 18:10:34,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:10:34,182 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 71.0) internal successors, (355), 5 states have internal predecessors, (355), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 367 [2024-11-08 18:10:34,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:10:34,184 INFO L225 Difference]: With dead ends: 2732 [2024-11-08 18:10:34,184 INFO L226 Difference]: Without dead ends: 1513 [2024-11-08 18:10:34,186 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:10:34,186 INFO L432 NwaCegarLoop]: 1934 mSDtfsCounter, 4063 mSDsluCounter, 1936 mSDsCounter, 0 mSdLazyCounter, 598 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4066 SdHoareTripleChecker+Valid, 3870 SdHoareTripleChecker+Invalid, 599 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 598 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 18:10:34,186 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4066 Valid, 3870 Invalid, 599 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 598 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 18:10:34,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1513 states. [2024-11-08 18:10:34,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1513 to 1513. [2024-11-08 18:10:34,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 1508 states have (on average 1.4787798408488064) internal successors, (2230), 1508 states have internal predecessors, (2230), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-08 18:10:34,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 2236 transitions. [2024-11-08 18:10:34,210 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 2236 transitions. Word has length 367 [2024-11-08 18:10:34,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:10:34,211 INFO L471 AbstractCegarLoop]: Abstraction has 1513 states and 2236 transitions. [2024-11-08 18:10:34,211 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 71.0) internal successors, (355), 5 states have internal predecessors, (355), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-08 18:10:34,211 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 2236 transitions. [2024-11-08 18:10:34,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 369 [2024-11-08 18:10:34,213 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:10:34,214 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:10:34,214 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-08 18:10:34,214 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:10:34,214 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:10:34,214 INFO L85 PathProgramCache]: Analyzing trace with hash -1631077902, now seen corresponding path program 1 times [2024-11-08 18:10:34,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:10:34,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206766591] [2024-11-08 18:10:34,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:10:34,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:10:34,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:34,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-11-08 18:10:34,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:34,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2024-11-08 18:10:34,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:34,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-11-08 18:10:34,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:34,966 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-08 18:10:34,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:10:34,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206766591] [2024-11-08 18:10:34,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206766591] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:10:34,966 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:10:34,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:10:34,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326596488] [2024-11-08 18:10:34,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:10:34,967 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:10:34,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:10:34,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:10:34,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:10:34,969 INFO L87 Difference]: Start difference. First operand 1513 states and 2236 transitions. Second operand has 5 states, 5 states have (on average 71.2) internal successors, (356), 5 states have internal predecessors, (356), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-08 18:10:35,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:10:35,345 INFO L93 Difference]: Finished difference Result 2732 states and 4032 transitions. [2024-11-08 18:10:35,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:10:35,346 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 71.2) internal successors, (356), 5 states have internal predecessors, (356), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 368 [2024-11-08 18:10:35,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:10:35,348 INFO L225 Difference]: With dead ends: 2732 [2024-11-08 18:10:35,348 INFO L226 Difference]: Without dead ends: 1513 [2024-11-08 18:10:35,350 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:10:35,350 INFO L432 NwaCegarLoop]: 1934 mSDtfsCounter, 4055 mSDsluCounter, 1936 mSDsCounter, 0 mSdLazyCounter, 596 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4058 SdHoareTripleChecker+Valid, 3870 SdHoareTripleChecker+Invalid, 597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 596 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 18:10:35,350 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4058 Valid, 3870 Invalid, 597 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 596 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 18:10:35,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1513 states. [2024-11-08 18:10:35,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1513 to 1513. [2024-11-08 18:10:35,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 1508 states have (on average 1.4781167108753315) internal successors, (2229), 1508 states have internal predecessors, (2229), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-08 18:10:35,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 2235 transitions. [2024-11-08 18:10:35,372 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 2235 transitions. Word has length 368 [2024-11-08 18:10:35,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:10:35,373 INFO L471 AbstractCegarLoop]: Abstraction has 1513 states and 2235 transitions. [2024-11-08 18:10:35,373 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 71.2) internal successors, (356), 5 states have internal predecessors, (356), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-08 18:10:35,374 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 2235 transitions. [2024-11-08 18:10:35,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 370 [2024-11-08 18:10:35,375 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:10:35,376 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:10:35,376 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-08 18:10:35,376 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:10:35,377 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:10:35,377 INFO L85 PathProgramCache]: Analyzing trace with hash -1213889860, now seen corresponding path program 1 times [2024-11-08 18:10:35,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:10:35,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826535456] [2024-11-08 18:10:35,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:10:35,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:10:35,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:36,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-11-08 18:10:36,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:36,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2024-11-08 18:10:36,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:36,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-11-08 18:10:36,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:36,025 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-08 18:10:36,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:10:36,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826535456] [2024-11-08 18:10:36,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826535456] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:10:36,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:10:36,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:10:36,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525805618] [2024-11-08 18:10:36,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:10:36,026 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:10:36,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:10:36,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:10:36,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:10:36,027 INFO L87 Difference]: Start difference. First operand 1513 states and 2235 transitions. Second operand has 5 states, 5 states have (on average 71.4) internal successors, (357), 5 states have internal predecessors, (357), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-08 18:10:36,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:10:36,399 INFO L93 Difference]: Finished difference Result 2732 states and 4030 transitions. [2024-11-08 18:10:36,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:10:36,399 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 71.4) internal successors, (357), 5 states have internal predecessors, (357), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 369 [2024-11-08 18:10:36,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:10:36,402 INFO L225 Difference]: With dead ends: 2732 [2024-11-08 18:10:36,402 INFO L226 Difference]: Without dead ends: 1513 [2024-11-08 18:10:36,404 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:10:36,405 INFO L432 NwaCegarLoop]: 1934 mSDtfsCounter, 4047 mSDsluCounter, 1936 mSDsCounter, 0 mSdLazyCounter, 594 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4050 SdHoareTripleChecker+Valid, 3870 SdHoareTripleChecker+Invalid, 595 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 594 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 18:10:36,405 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4050 Valid, 3870 Invalid, 595 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 594 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 18:10:36,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1513 states. [2024-11-08 18:10:36,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1513 to 1513. [2024-11-08 18:10:36,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 1508 states have (on average 1.4774535809018567) internal successors, (2228), 1508 states have internal predecessors, (2228), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-08 18:10:36,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 2234 transitions. [2024-11-08 18:10:36,426 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 2234 transitions. Word has length 369 [2024-11-08 18:10:36,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:10:36,427 INFO L471 AbstractCegarLoop]: Abstraction has 1513 states and 2234 transitions. [2024-11-08 18:10:36,427 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 71.4) internal successors, (357), 5 states have internal predecessors, (357), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-08 18:10:36,427 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 2234 transitions. [2024-11-08 18:10:36,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 371 [2024-11-08 18:10:36,429 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:10:36,429 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:10:36,430 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-08 18:10:36,430 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:10:36,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:10:36,430 INFO L85 PathProgramCache]: Analyzing trace with hash -459600551, now seen corresponding path program 1 times [2024-11-08 18:10:36,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:10:36,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033670590] [2024-11-08 18:10:36,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:10:36,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:10:36,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:37,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-11-08 18:10:37,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:37,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2024-11-08 18:10:37,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:37,125 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-11-08 18:10:37,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:37,127 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-08 18:10:37,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:10:37,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033670590] [2024-11-08 18:10:37,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033670590] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:10:37,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:10:37,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:10:37,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732218976] [2024-11-08 18:10:37,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:10:37,129 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:10:37,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:10:37,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:10:37,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:10:37,130 INFO L87 Difference]: Start difference. First operand 1513 states and 2234 transitions. Second operand has 5 states, 5 states have (on average 71.6) internal successors, (358), 5 states have internal predecessors, (358), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-08 18:10:37,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:10:37,506 INFO L93 Difference]: Finished difference Result 2732 states and 4028 transitions. [2024-11-08 18:10:37,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:10:37,506 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 71.6) internal successors, (358), 5 states have internal predecessors, (358), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 370 [2024-11-08 18:10:37,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:10:37,509 INFO L225 Difference]: With dead ends: 2732 [2024-11-08 18:10:37,509 INFO L226 Difference]: Without dead ends: 1513 [2024-11-08 18:10:37,511 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:10:37,511 INFO L432 NwaCegarLoop]: 1934 mSDtfsCounter, 4039 mSDsluCounter, 1936 mSDsCounter, 0 mSdLazyCounter, 592 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4042 SdHoareTripleChecker+Valid, 3870 SdHoareTripleChecker+Invalid, 593 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 592 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 18:10:37,511 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4042 Valid, 3870 Invalid, 593 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 592 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 18:10:37,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1513 states. [2024-11-08 18:10:37,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1513 to 1513. [2024-11-08 18:10:37,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 1508 states have (on average 1.476790450928382) internal successors, (2227), 1508 states have internal predecessors, (2227), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-08 18:10:37,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 2233 transitions. [2024-11-08 18:10:37,531 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 2233 transitions. Word has length 370 [2024-11-08 18:10:37,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:10:37,531 INFO L471 AbstractCegarLoop]: Abstraction has 1513 states and 2233 transitions. [2024-11-08 18:10:37,531 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 71.6) internal successors, (358), 5 states have internal predecessors, (358), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-08 18:10:37,532 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 2233 transitions. [2024-11-08 18:10:37,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 372 [2024-11-08 18:10:37,533 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:10:37,534 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:10:37,534 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-08 18:10:37,534 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:10:37,534 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:10:37,535 INFO L85 PathProgramCache]: Analyzing trace with hash -164139453, now seen corresponding path program 1 times [2024-11-08 18:10:37,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:10:37,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463366351] [2024-11-08 18:10:37,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:10:37,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:10:37,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:38,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-11-08 18:10:38,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:38,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2024-11-08 18:10:38,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:38,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-11-08 18:10:38,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:38,159 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-08 18:10:38,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:10:38,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463366351] [2024-11-08 18:10:38,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1463366351] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:10:38,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:10:38,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:10:38,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33185893] [2024-11-08 18:10:38,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:10:38,161 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:10:38,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:10:38,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:10:38,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:10:38,163 INFO L87 Difference]: Start difference. First operand 1513 states and 2233 transitions. Second operand has 5 states, 5 states have (on average 71.8) internal successors, (359), 5 states have internal predecessors, (359), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-08 18:10:38,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:10:38,566 INFO L93 Difference]: Finished difference Result 2732 states and 4026 transitions. [2024-11-08 18:10:38,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:10:38,566 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 71.8) internal successors, (359), 5 states have internal predecessors, (359), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 371 [2024-11-08 18:10:38,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:10:38,570 INFO L225 Difference]: With dead ends: 2732 [2024-11-08 18:10:38,570 INFO L226 Difference]: Without dead ends: 1513 [2024-11-08 18:10:38,572 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:10:38,572 INFO L432 NwaCegarLoop]: 1934 mSDtfsCounter, 4031 mSDsluCounter, 1936 mSDsCounter, 0 mSdLazyCounter, 590 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4034 SdHoareTripleChecker+Valid, 3870 SdHoareTripleChecker+Invalid, 591 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 590 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 18:10:38,572 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4034 Valid, 3870 Invalid, 591 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 590 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 18:10:38,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1513 states. [2024-11-08 18:10:38,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1513 to 1513. [2024-11-08 18:10:38,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 1508 states have (on average 1.476127320954907) internal successors, (2226), 1508 states have internal predecessors, (2226), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-08 18:10:38,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 2232 transitions. [2024-11-08 18:10:38,596 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 2232 transitions. Word has length 371 [2024-11-08 18:10:38,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:10:38,596 INFO L471 AbstractCegarLoop]: Abstraction has 1513 states and 2232 transitions. [2024-11-08 18:10:38,596 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 71.8) internal successors, (359), 5 states have internal predecessors, (359), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-08 18:10:38,597 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 2232 transitions. [2024-11-08 18:10:38,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 373 [2024-11-08 18:10:38,599 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:10:38,599 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:10:38,599 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-08 18:10:38,599 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:10:38,600 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:10:38,600 INFO L85 PathProgramCache]: Analyzing trace with hash -213217216, now seen corresponding path program 1 times [2024-11-08 18:10:38,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:10:38,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170461930] [2024-11-08 18:10:38,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:10:38,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:10:38,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:39,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-11-08 18:10:39,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:39,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2024-11-08 18:10:39,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:39,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-11-08 18:10:39,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:39,279 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-08 18:10:39,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:10:39,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170461930] [2024-11-08 18:10:39,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [170461930] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:10:39,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:10:39,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:10:39,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203175371] [2024-11-08 18:10:39,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:10:39,281 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:10:39,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:10:39,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:10:39,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:10:39,282 INFO L87 Difference]: Start difference. First operand 1513 states and 2232 transitions. Second operand has 5 states, 5 states have (on average 72.0) internal successors, (360), 5 states have internal predecessors, (360), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-08 18:10:39,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:10:39,655 INFO L93 Difference]: Finished difference Result 2732 states and 4024 transitions. [2024-11-08 18:10:39,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:10:39,656 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 72.0) internal successors, (360), 5 states have internal predecessors, (360), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 372 [2024-11-08 18:10:39,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:10:39,659 INFO L225 Difference]: With dead ends: 2732 [2024-11-08 18:10:39,659 INFO L226 Difference]: Without dead ends: 1513 [2024-11-08 18:10:39,661 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:10:39,661 INFO L432 NwaCegarLoop]: 1934 mSDtfsCounter, 4023 mSDsluCounter, 1936 mSDsCounter, 0 mSdLazyCounter, 588 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4026 SdHoareTripleChecker+Valid, 3870 SdHoareTripleChecker+Invalid, 589 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 588 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 18:10:39,662 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4026 Valid, 3870 Invalid, 589 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 588 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 18:10:39,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1513 states. [2024-11-08 18:10:39,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1513 to 1513. [2024-11-08 18:10:39,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 1508 states have (on average 1.4754641909814323) internal successors, (2225), 1508 states have internal predecessors, (2225), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-08 18:10:39,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 2231 transitions. [2024-11-08 18:10:39,686 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 2231 transitions. Word has length 372 [2024-11-08 18:10:39,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:10:39,686 INFO L471 AbstractCegarLoop]: Abstraction has 1513 states and 2231 transitions. [2024-11-08 18:10:39,687 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 72.0) internal successors, (360), 5 states have internal predecessors, (360), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-08 18:10:39,687 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 2231 transitions. [2024-11-08 18:10:39,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2024-11-08 18:10:39,689 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:10:39,689 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:10:39,689 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-08 18:10:39,690 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:10:39,690 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:10:39,691 INFO L85 PathProgramCache]: Analyzing trace with hash -1998958262, now seen corresponding path program 1 times [2024-11-08 18:10:39,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:10:39,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960497807] [2024-11-08 18:10:39,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:10:39,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:10:39,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:40,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-11-08 18:10:40,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:40,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2024-11-08 18:10:40,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:40,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-11-08 18:10:40,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:40,389 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-08 18:10:40,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:10:40,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960497807] [2024-11-08 18:10:40,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1960497807] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:10:40,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:10:40,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:10:40,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856995269] [2024-11-08 18:10:40,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:10:40,391 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:10:40,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:10:40,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:10:40,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:10:40,392 INFO L87 Difference]: Start difference. First operand 1513 states and 2231 transitions. Second operand has 5 states, 5 states have (on average 72.2) internal successors, (361), 5 states have internal predecessors, (361), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-08 18:10:40,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:10:40,770 INFO L93 Difference]: Finished difference Result 2732 states and 4022 transitions. [2024-11-08 18:10:40,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:10:40,771 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 72.2) internal successors, (361), 5 states have internal predecessors, (361), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 373 [2024-11-08 18:10:40,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:10:40,773 INFO L225 Difference]: With dead ends: 2732 [2024-11-08 18:10:40,773 INFO L226 Difference]: Without dead ends: 1513 [2024-11-08 18:10:40,775 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:10:40,776 INFO L432 NwaCegarLoop]: 1934 mSDtfsCounter, 2134 mSDsluCounter, 1943 mSDsCounter, 0 mSdLazyCounter, 586 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2137 SdHoareTripleChecker+Valid, 3877 SdHoareTripleChecker+Invalid, 587 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 586 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 18:10:40,776 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2137 Valid, 3877 Invalid, 587 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 586 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 18:10:40,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1513 states. [2024-11-08 18:10:40,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1513 to 1513. [2024-11-08 18:10:40,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 1508 states have (on average 1.4748010610079576) internal successors, (2224), 1508 states have internal predecessors, (2224), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-08 18:10:40,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 2230 transitions. [2024-11-08 18:10:40,798 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 2230 transitions. Word has length 373 [2024-11-08 18:10:40,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:10:40,799 INFO L471 AbstractCegarLoop]: Abstraction has 1513 states and 2230 transitions. [2024-11-08 18:10:40,799 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 72.2) internal successors, (361), 5 states have internal predecessors, (361), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-08 18:10:40,799 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 2230 transitions. [2024-11-08 18:10:40,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 375 [2024-11-08 18:10:40,801 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:10:40,801 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:10:40,802 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-08 18:10:40,802 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:10:40,802 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:10:40,803 INFO L85 PathProgramCache]: Analyzing trace with hash -3079513, now seen corresponding path program 1 times [2024-11-08 18:10:40,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:10:40,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192420072] [2024-11-08 18:10:40,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:10:40,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:10:41,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:41,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-11-08 18:10:41,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:41,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2024-11-08 18:10:41,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:41,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-11-08 18:10:41,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:10:41,438 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-08 18:10:41,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:10:41,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192420072] [2024-11-08 18:10:41,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192420072] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:10:41,439 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:10:41,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:10:41,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123139157] [2024-11-08 18:10:41,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:10:41,440 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:10:41,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:10:41,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:10:41,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:10:41,441 INFO L87 Difference]: Start difference. First operand 1513 states and 2230 transitions. Second operand has 5 states, 5 states have (on average 72.4) internal successors, (362), 5 states have internal predecessors, (362), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3)