./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_ibuf.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc 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.vis_QF_BV_ibuf.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 21d3b5f5f45e838fe2a280802b5788520d014c57271d384acd297e13beb553d8 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 18:16:30,127 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 18:16:30,192 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-18 18:16:30,197 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 18:16:30,197 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 18:16:30,234 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 18:16:30,234 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 18:16:30,235 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 18:16:30,236 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 18:16:30,237 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 18:16:30,238 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 18:16:30,238 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 18:16:30,239 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 18:16:30,239 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 18:16:30,239 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 18:16:30,241 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 18:16:30,242 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 18:16:30,242 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 18:16:30,242 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 18:16:30,242 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 18:16:30,242 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 18:16:30,246 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 18:16:30,246 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 18:16:30,247 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 18:16:30,247 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 18:16:30,247 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 18:16:30,247 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 18:16:30,248 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 18:16:30,248 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 18:16:30,248 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 18:16:30,248 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 18:16:30,248 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 18:16:30,249 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 18:16:30,249 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 18:16:30,249 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 18:16:30,249 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 18:16:30,249 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 18:16:30,249 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 18:16:30,250 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 18:16:30,250 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 21d3b5f5f45e838fe2a280802b5788520d014c57271d384acd297e13beb553d8 [2024-11-18 18:16:30,516 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 18:16:30,539 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 18:16:30,542 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 18:16:30,544 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 18:16:30,544 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 18:16:30,545 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_ibuf.c [2024-11-18 18:16:32,057 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 18:16:32,304 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 18:16:32,305 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_ibuf.c [2024-11-18 18:16:32,321 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fbd28660b/a54256e783374b88b9ab2184d3b0a571/FLAG2f407cdad [2024-11-18 18:16:32,337 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fbd28660b/a54256e783374b88b9ab2184d3b0a571 [2024-11-18 18:16:32,341 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 18:16:32,342 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 18:16:32,345 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 18:16:32,346 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 18:16:32,351 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 18:16:32,352 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:16:32" (1/1) ... [2024-11-18 18:16:32,353 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f6627fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:16:32, skipping insertion in model container [2024-11-18 18:16:32,355 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:16:32" (1/1) ... [2024-11-18 18:16:32,398 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 18:16:32,605 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.vis_QF_BV_ibuf.c[1254,1267] [2024-11-18 18:16:32,874 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 18:16:32,883 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 18:16:32,894 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.vis_QF_BV_ibuf.c[1254,1267] [2024-11-18 18:16:33,020 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 18:16:33,050 INFO L204 MainTranslator]: Completed translation [2024-11-18 18:16:33,050 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:16:33 WrapperNode [2024-11-18 18:16:33,050 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 18:16:33,052 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 18:16:33,052 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 18:16:33,052 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 18:16:33,059 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:16:33" (1/1) ... [2024-11-18 18:16:33,092 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:16:33" (1/1) ... [2024-11-18 18:16:33,276 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1660 [2024-11-18 18:16:33,277 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 18:16:33,278 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 18:16:33,278 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 18:16:33,278 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 18:16:33,289 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:16:33" (1/1) ... [2024-11-18 18:16:33,290 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:16:33" (1/1) ... [2024-11-18 18:16:33,322 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:16:33" (1/1) ... [2024-11-18 18:16:33,404 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]. [2024-11-18 18:16:33,405 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:16:33" (1/1) ... [2024-11-18 18:16:33,405 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:16:33" (1/1) ... [2024-11-18 18:16:33,602 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:16:33" (1/1) ... [2024-11-18 18:16:33,621 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:16:33" (1/1) ... [2024-11-18 18:16:33,657 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:16:33" (1/1) ... [2024-11-18 18:16:33,674 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:16:33" (1/1) ... [2024-11-18 18:16:33,757 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 18:16:33,759 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 18:16:33,760 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 18:16:33,760 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 18:16:33,761 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:16:33" (1/1) ... [2024-11-18 18:16:33,766 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 18:16:33,778 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 18:16:33,796 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) [2024-11-18 18:16:33,802 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 [2024-11-18 18:16:33,850 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 18:16:33,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 18:16:33,851 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 18:16:33,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 18:16:34,103 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 18:16:34,107 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 18:16:36,038 INFO L? ?]: Removed 1042 outVars from TransFormulas that were not future-live. [2024-11-18 18:16:36,038 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 18:16:36,062 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 18:16:36,066 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-18 18:16:36,067 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:16:36 BoogieIcfgContainer [2024-11-18 18:16:36,067 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 18:16:36,071 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 18:16:36,071 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 18:16:36,075 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 18:16:36,075 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 06:16:32" (1/3) ... [2024-11-18 18:16:36,076 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@348d1071 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:16:36, skipping insertion in model container [2024-11-18 18:16:36,076 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:16:33" (2/3) ... [2024-11-18 18:16:36,077 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@348d1071 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:16:36, skipping insertion in model container [2024-11-18 18:16:36,077 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:16:36" (3/3) ... [2024-11-18 18:16:36,078 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_QF_BV_ibuf.c [2024-11-18 18:16:36,096 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 18:16:36,096 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 18:16:36,191 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 18:16:36,199 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;@3fe51400, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 18:16:36,199 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 18:16:36,206 INFO L276 IsEmpty]: Start isEmpty. Operand has 546 states, 544 states have (on average 1.4981617647058822) internal successors, (815), 545 states have internal predecessors, (815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:16:36,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-18 18:16:36,218 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:16:36,219 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 18:16:36,220 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:16:36,226 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:16:36,227 INFO L85 PathProgramCache]: Analyzing trace with hash -479390553, now seen corresponding path program 1 times [2024-11-18 18:16:36,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:16:36,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533640811] [2024-11-18 18:16:36,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:16:36,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:16:36,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:16:37,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:16:37,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:16:37,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533640811] [2024-11-18 18:16:37,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533640811] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 18:16:37,032 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 18:16:37,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 18:16:37,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212459132] [2024-11-18 18:16:37,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:16:37,039 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 18:16:37,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:16:37,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 18:16:37,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 18:16:37,089 INFO L87 Difference]: Start difference. First operand has 546 states, 544 states have (on average 1.4981617647058822) internal successors, (815), 545 states have internal predecessors, (815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:16:37,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:16:37,201 INFO L93 Difference]: Finished difference Result 1081 states and 1617 transitions. [2024-11-18 18:16:37,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 18:16:37,206 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2024-11-18 18:16:37,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:16:37,218 INFO L225 Difference]: With dead ends: 1081 [2024-11-18 18:16:37,219 INFO L226 Difference]: Without dead ends: 545 [2024-11-18 18:16:37,224 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 18:16:37,227 INFO L432 NwaCegarLoop]: 809 mSDtfsCounter, 0 mSDsluCounter, 1612 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2421 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 [2024-11-18 18:16:37,228 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2421 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 18:16:37,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 545 states. [2024-11-18 18:16:37,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 545 to 545. [2024-11-18 18:16:37,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 545 states, 544 states have (on average 1.494485294117647) internal successors, (813), 544 states have internal predecessors, (813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:16:37,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 545 states and 813 transitions. [2024-11-18 18:16:37,288 INFO L78 Accepts]: Start accepts. Automaton has 545 states and 813 transitions. Word has length 53 [2024-11-18 18:16:37,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:16:37,289 INFO L471 AbstractCegarLoop]: Abstraction has 545 states and 813 transitions. [2024-11-18 18:16:37,289 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:16:37,289 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states and 813 transitions. [2024-11-18 18:16:37,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-18 18:16:37,291 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:16:37,291 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 18:16:37,292 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-18 18:16:37,292 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:16:37,292 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:16:37,293 INFO L85 PathProgramCache]: Analyzing trace with hash -1974509790, now seen corresponding path program 1 times [2024-11-18 18:16:37,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:16:37,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923040394] [2024-11-18 18:16:37,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:16:37,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:16:37,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:16:37,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:16:37,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:16:37,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923040394] [2024-11-18 18:16:37,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1923040394] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 18:16:37,592 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 18:16:37,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 18:16:37,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553977305] [2024-11-18 18:16:37,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:16:37,595 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 18:16:37,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:16:37,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 18:16:37,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 18:16:37,596 INFO L87 Difference]: Start difference. First operand 545 states and 813 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:16:37,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:16:37,648 INFO L93 Difference]: Finished difference Result 1082 states and 1615 transitions. [2024-11-18 18:16:37,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 18:16:37,649 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2024-11-18 18:16:37,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:16:37,652 INFO L225 Difference]: With dead ends: 1082 [2024-11-18 18:16:37,652 INFO L226 Difference]: Without dead ends: 547 [2024-11-18 18:16:37,654 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 18:16:37,658 INFO L432 NwaCegarLoop]: 809 mSDtfsCounter, 0 mSDsluCounter, 1608 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2417 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 [2024-11-18 18:16:37,658 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2417 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 18:16:37,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 547 states. [2024-11-18 18:16:37,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 547 to 547. [2024-11-18 18:16:37,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 547 states, 546 states have (on average 1.4926739926739927) internal successors, (815), 546 states have internal predecessors, (815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:16:37,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 815 transitions. [2024-11-18 18:16:37,692 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 815 transitions. Word has length 54 [2024-11-18 18:16:37,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:16:37,692 INFO L471 AbstractCegarLoop]: Abstraction has 547 states and 815 transitions. [2024-11-18 18:16:37,693 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:16:37,693 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 815 transitions. [2024-11-18 18:16:37,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-18 18:16:37,694 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:16:37,694 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 18:16:37,694 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 18:16:37,695 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:16:37,695 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:16:37,695 INFO L85 PathProgramCache]: Analyzing trace with hash 2116740320, now seen corresponding path program 1 times [2024-11-18 18:16:37,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:16:37,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340318636] [2024-11-18 18:16:37,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:16:37,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:16:37,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:16:38,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:16:38,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:16:38,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340318636] [2024-11-18 18:16:38,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1340318636] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 18:16:38,254 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 18:16:38,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 18:16:38,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499819970] [2024-11-18 18:16:38,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:16:38,256 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 18:16:38,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:16:38,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 18:16:38,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 18:16:38,259 INFO L87 Difference]: Start difference. First operand 547 states and 815 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:16:38,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:16:38,332 INFO L93 Difference]: Finished difference Result 1088 states and 1622 transitions. [2024-11-18 18:16:38,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 18:16:38,333 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2024-11-18 18:16:38,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:16:38,336 INFO L225 Difference]: With dead ends: 1088 [2024-11-18 18:16:38,337 INFO L226 Difference]: Without dead ends: 551 [2024-11-18 18:16:38,338 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-18 18:16:38,339 INFO L432 NwaCegarLoop]: 807 mSDtfsCounter, 770 mSDsluCounter, 1606 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 770 SdHoareTripleChecker+Valid, 2413 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 18:16:38,343 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [770 Valid, 2413 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 18:16:38,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 551 states. [2024-11-18 18:16:38,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 551 to 550. [2024-11-18 18:16:38,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 550 states, 549 states have (on average 1.4899817850637522) internal successors, (818), 549 states have internal predecessors, (818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:16:38,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 818 transitions. [2024-11-18 18:16:38,360 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 818 transitions. Word has length 55 [2024-11-18 18:16:38,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:16:38,361 INFO L471 AbstractCegarLoop]: Abstraction has 550 states and 818 transitions. [2024-11-18 18:16:38,361 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:16:38,361 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 818 transitions. [2024-11-18 18:16:38,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-18 18:16:38,363 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:16:38,363 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 18:16:38,363 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 18:16:38,363 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:16:38,364 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:16:38,364 INFO L85 PathProgramCache]: Analyzing trace with hash -1535981403, now seen corresponding path program 1 times [2024-11-18 18:16:38,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:16:38,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921324585] [2024-11-18 18:16:38,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:16:38,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:16:38,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:16:39,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:16:39,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:16:39,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921324585] [2024-11-18 18:16:39,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [921324585] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 18:16:39,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 18:16:39,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-18 18:16:39,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018364304] [2024-11-18 18:16:39,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:16:39,002 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-18 18:16:39,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:16:39,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-18 18:16:39,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-18 18:16:39,003 INFO L87 Difference]: Start difference. First operand 550 states and 818 transitions. Second operand has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:16:39,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:16:39,169 INFO L93 Difference]: Finished difference Result 1577 states and 2347 transitions. [2024-11-18 18:16:39,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-18 18:16:39,170 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2024-11-18 18:16:39,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:16:39,175 INFO L225 Difference]: With dead ends: 1577 [2024-11-18 18:16:39,175 INFO L226 Difference]: Without dead ends: 1037 [2024-11-18 18:16:39,179 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-18 18:16:39,180 INFO L432 NwaCegarLoop]: 798 mSDtfsCounter, 700 mSDsluCounter, 3967 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 700 SdHoareTripleChecker+Valid, 4765 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 18:16:39,181 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [700 Valid, 4765 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 18:16:39,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1037 states. [2024-11-18 18:16:39,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1037 to 611. [2024-11-18 18:16:39,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 611 states, 610 states have (on average 1.4885245901639343) internal successors, (908), 610 states have internal predecessors, (908), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:16:39,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 611 states to 611 states and 908 transitions. [2024-11-18 18:16:39,200 INFO L78 Accepts]: Start accepts. Automaton has 611 states and 908 transitions. Word has length 56 [2024-11-18 18:16:39,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:16:39,200 INFO L471 AbstractCegarLoop]: Abstraction has 611 states and 908 transitions. [2024-11-18 18:16:39,200 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:16:39,200 INFO L276 IsEmpty]: Start isEmpty. Operand 611 states and 908 transitions. [2024-11-18 18:16:39,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-18 18:16:39,205 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:16:39,205 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 18:16:39,206 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-18 18:16:39,206 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:16:39,206 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:16:39,206 INFO L85 PathProgramCache]: Analyzing trace with hash -1252876768, now seen corresponding path program 1 times [2024-11-18 18:16:39,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:16:39,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839558128] [2024-11-18 18:16:39,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:16:39,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:16:39,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:16:39,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:16:39,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:16:39,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839558128] [2024-11-18 18:16:39,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1839558128] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 18:16:39,695 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 18:16:39,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-18 18:16:39,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762290941] [2024-11-18 18:16:39,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:16:39,695 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-18 18:16:39,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:16:39,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-18 18:16:39,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-18 18:16:39,698 INFO L87 Difference]: Start difference. First operand 611 states and 908 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:16:39,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:16:39,840 INFO L93 Difference]: Finished difference Result 1602 states and 2381 transitions. [2024-11-18 18:16:39,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-18 18:16:39,841 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2024-11-18 18:16:39,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:16:39,848 INFO L225 Difference]: With dead ends: 1602 [2024-11-18 18:16:39,848 INFO L226 Difference]: Without dead ends: 1052 [2024-11-18 18:16:39,850 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-18 18:16:39,852 INFO L432 NwaCegarLoop]: 798 mSDtfsCounter, 724 mSDsluCounter, 3890 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 724 SdHoareTripleChecker+Valid, 4688 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 18:16:39,854 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [724 Valid, 4688 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 18:16:39,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1052 states. [2024-11-18 18:16:39,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1052 to 614. [2024-11-18 18:16:39,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 614 states, 613 states have (on average 1.4861337683523654) internal successors, (911), 613 states have internal predecessors, (911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:16:39,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 614 states to 614 states and 911 transitions. [2024-11-18 18:16:39,871 INFO L78 Accepts]: Start accepts. Automaton has 614 states and 911 transitions. Word has length 57 [2024-11-18 18:16:39,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:16:39,871 INFO L471 AbstractCegarLoop]: Abstraction has 614 states and 911 transitions. [2024-11-18 18:16:39,872 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:16:39,872 INFO L276 IsEmpty]: Start isEmpty. Operand 614 states and 911 transitions. [2024-11-18 18:16:39,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-18 18:16:39,873 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:16:39,874 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 18:16:39,874 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-18 18:16:39,874 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:16:39,875 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:16:39,875 INFO L85 PathProgramCache]: Analyzing trace with hash -532910886, now seen corresponding path program 1 times [2024-11-18 18:16:39,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:16:39,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661072836] [2024-11-18 18:16:39,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:16:39,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:16:39,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:16:40,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:16:40,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:16:40,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661072836] [2024-11-18 18:16:40,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1661072836] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 18:16:40,393 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 18:16:40,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-18 18:16:40,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715921983] [2024-11-18 18:16:40,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:16:40,394 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-18 18:16:40,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:16:40,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-18 18:16:40,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-18 18:16:40,395 INFO L87 Difference]: Start difference. First operand 614 states and 911 transitions. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:16:40,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:16:40,548 INFO L93 Difference]: Finished difference Result 1487 states and 2209 transitions. [2024-11-18 18:16:40,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-18 18:16:40,549 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2024-11-18 18:16:40,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:16:40,553 INFO L225 Difference]: With dead ends: 1487 [2024-11-18 18:16:40,554 INFO L226 Difference]: Without dead ends: 947 [2024-11-18 18:16:40,556 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-18 18:16:40,557 INFO L432 NwaCegarLoop]: 798 mSDtfsCounter, 542 mSDsluCounter, 3722 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 542 SdHoareTripleChecker+Valid, 4520 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 18:16:40,559 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [542 Valid, 4520 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 18:16:40,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 947 states. [2024-11-18 18:16:40,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 947 to 629. [2024-11-18 18:16:40,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 629 states, 628 states have (on average 1.484076433121019) internal successors, (932), 628 states have internal predecessors, (932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:16:40,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 629 states to 629 states and 932 transitions. [2024-11-18 18:16:40,579 INFO L78 Accepts]: Start accepts. Automaton has 629 states and 932 transitions. Word has length 58 [2024-11-18 18:16:40,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:16:40,579 INFO L471 AbstractCegarLoop]: Abstraction has 629 states and 932 transitions. [2024-11-18 18:16:40,579 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:16:40,579 INFO L276 IsEmpty]: Start isEmpty. Operand 629 states and 932 transitions. [2024-11-18 18:16:40,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-18 18:16:40,580 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:16:40,580 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 18:16:40,580 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-18 18:16:40,580 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:16:40,580 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:16:40,581 INFO L85 PathProgramCache]: Analyzing trace with hash -716054592, now seen corresponding path program 1 times [2024-11-18 18:16:40,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:16:40,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326628922] [2024-11-18 18:16:40,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:16:40,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:16:40,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:16:40,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:16:40,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:16:40,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326628922] [2024-11-18 18:16:40,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326628922] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 18:16:40,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 18:16:40,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 18:16:40,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954766965] [2024-11-18 18:16:40,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:16:40,994 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 18:16:40,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:16:40,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 18:16:40,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 18:16:40,996 INFO L87 Difference]: Start difference. First operand 629 states and 932 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:16:41,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:16:41,094 INFO L93 Difference]: Finished difference Result 1224 states and 1814 transitions. [2024-11-18 18:16:41,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-18 18:16:41,095 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2024-11-18 18:16:41,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:16:41,098 INFO L225 Difference]: With dead ends: 1224 [2024-11-18 18:16:41,098 INFO L226 Difference]: Without dead ends: 628 [2024-11-18 18:16:41,099 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-18 18:16:41,099 INFO L432 NwaCegarLoop]: 801 mSDtfsCounter, 86 mSDsluCounter, 3181 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 3982 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 18:16:41,100 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 3982 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 18:16:41,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 628 states. [2024-11-18 18:16:41,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 628 to 628. [2024-11-18 18:16:41,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 628 states, 627 states have (on average 1.481658692185008) internal successors, (929), 627 states have internal predecessors, (929), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:16:41,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 628 states to 628 states and 929 transitions. [2024-11-18 18:16:41,111 INFO L78 Accepts]: Start accepts. Automaton has 628 states and 929 transitions. Word has length 59 [2024-11-18 18:16:41,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:16:41,111 INFO L471 AbstractCegarLoop]: Abstraction has 628 states and 929 transitions. [2024-11-18 18:16:41,112 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:16:41,112 INFO L276 IsEmpty]: Start isEmpty. Operand 628 states and 929 transitions. [2024-11-18 18:16:41,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-18 18:16:41,112 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:16:41,112 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 18:16:41,113 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-18 18:16:41,113 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:16:41,113 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:16:41,113 INFO L85 PathProgramCache]: Analyzing trace with hash 1820580971, now seen corresponding path program 1 times [2024-11-18 18:16:41,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:16:41,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190946998] [2024-11-18 18:16:41,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:16:41,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:16:41,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:16:41,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:16:41,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:16:41,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190946998] [2024-11-18 18:16:41,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [190946998] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 18:16:41,613 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 18:16:41,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 18:16:41,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427023633] [2024-11-18 18:16:41,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:16:41,614 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 18:16:41,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:16:41,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 18:16:41,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 18:16:41,616 INFO L87 Difference]: Start difference. First operand 628 states and 929 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:16:41,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:16:41,689 INFO L93 Difference]: Finished difference Result 1242 states and 1838 transitions. [2024-11-18 18:16:41,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 18:16:41,690 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2024-11-18 18:16:41,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:16:41,692 INFO L225 Difference]: With dead ends: 1242 [2024-11-18 18:16:41,693 INFO L226 Difference]: Without dead ends: 628 [2024-11-18 18:16:41,694 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-18 18:16:41,695 INFO L432 NwaCegarLoop]: 804 mSDtfsCounter, 15 mSDsluCounter, 2399 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 3203 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 18:16:41,696 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 3203 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 18:16:41,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 628 states. [2024-11-18 18:16:41,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 628 to 628. [2024-11-18 18:16:41,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 628 states, 627 states have (on average 1.4800637958532696) internal successors, (928), 627 states have internal predecessors, (928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:16:41,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 628 states to 628 states and 928 transitions. [2024-11-18 18:16:41,713 INFO L78 Accepts]: Start accepts. Automaton has 628 states and 928 transitions. Word has length 60 [2024-11-18 18:16:41,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:16:41,714 INFO L471 AbstractCegarLoop]: Abstraction has 628 states and 928 transitions. [2024-11-18 18:16:41,714 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:16:41,714 INFO L276 IsEmpty]: Start isEmpty. Operand 628 states and 928 transitions. [2024-11-18 18:16:41,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-18 18:16:41,715 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:16:41,716 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 18:16:41,716 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-18 18:16:41,717 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:16:41,717 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:16:41,717 INFO L85 PathProgramCache]: Analyzing trace with hash 1821650205, now seen corresponding path program 1 times [2024-11-18 18:16:41,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:16:41,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644993270] [2024-11-18 18:16:41,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:16:41,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:16:41,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:16:42,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:16:42,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:16:42,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644993270] [2024-11-18 18:16:42,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644993270] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 18:16:42,374 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 18:16:42,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-18 18:16:42,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645893225] [2024-11-18 18:16:42,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:16:42,375 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-18 18:16:42,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:16:42,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-18 18:16:42,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-18 18:16:42,376 INFO L87 Difference]: Start difference. First operand 628 states and 928 transitions. Second operand has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:16:42,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:16:42,565 INFO L93 Difference]: Finished difference Result 1629 states and 2413 transitions. [2024-11-18 18:16:42,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 18:16:42,566 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2024-11-18 18:16:42,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:16:42,570 INFO L225 Difference]: With dead ends: 1629 [2024-11-18 18:16:42,570 INFO L226 Difference]: Without dead ends: 1041 [2024-11-18 18:16:42,571 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-18 18:16:42,572 INFO L432 NwaCegarLoop]: 787 mSDtfsCounter, 703 mSDsluCounter, 4709 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 703 SdHoareTripleChecker+Valid, 5496 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 18:16:42,572 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [703 Valid, 5496 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 18:16:42,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1041 states. [2024-11-18 18:16:42,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1041 to 627. [2024-11-18 18:16:42,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 627 states, 626 states have (on average 1.4776357827476039) internal successors, (925), 626 states have internal predecessors, (925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:16:42,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 627 states to 627 states and 925 transitions. [2024-11-18 18:16:42,587 INFO L78 Accepts]: Start accepts. Automaton has 627 states and 925 transitions. Word has length 61 [2024-11-18 18:16:42,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:16:42,587 INFO L471 AbstractCegarLoop]: Abstraction has 627 states and 925 transitions. [2024-11-18 18:16:42,587 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:16:42,587 INFO L276 IsEmpty]: Start isEmpty. Operand 627 states and 925 transitions. [2024-11-18 18:16:42,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-18 18:16:42,588 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:16:42,588 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 18:16:42,588 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-18 18:16:42,588 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:16:42,589 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:16:42,589 INFO L85 PathProgramCache]: Analyzing trace with hash -122670112, now seen corresponding path program 1 times [2024-11-18 18:16:42,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:16:42,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486233529] [2024-11-18 18:16:42,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:16:42,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:16:42,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:16:43,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:16:43,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:16:43,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486233529] [2024-11-18 18:16:43,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486233529] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 18:16:43,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 18:16:43,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-18 18:16:43,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853919756] [2024-11-18 18:16:43,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:16:43,621 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-18 18:16:43,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:16:43,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-18 18:16:43,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2024-11-18 18:16:43,622 INFO L87 Difference]: Start difference. First operand 627 states and 925 transitions. Second operand has 14 states, 14 states have (on average 4.428571428571429) internal successors, (62), 14 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:16:43,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:16:43,950 INFO L93 Difference]: Finished difference Result 1248 states and 1843 transitions. [2024-11-18 18:16:43,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-18 18:16:43,951 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.428571428571429) internal successors, (62), 14 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2024-11-18 18:16:43,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:16:43,954 INFO L225 Difference]: With dead ends: 1248 [2024-11-18 18:16:43,954 INFO L226 Difference]: Without dead ends: 643 [2024-11-18 18:16:43,955 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2024-11-18 18:16:43,955 INFO L432 NwaCegarLoop]: 785 mSDtfsCounter, 23 mSDsluCounter, 8573 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 9358 SdHoareTripleChecker+Invalid, 365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 18:16:43,956 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 9358 Invalid, 365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 361 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 18:16:43,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 643 states. [2024-11-18 18:16:43,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 643 to 638. [2024-11-18 18:16:43,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 638 states, 637 states have (on average 1.4772370486656201) internal successors, (941), 637 states have internal predecessors, (941), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:16:43,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 638 states to 638 states and 941 transitions. [2024-11-18 18:16:43,967 INFO L78 Accepts]: Start accepts. Automaton has 638 states and 941 transitions. Word has length 62 [2024-11-18 18:16:43,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:16:43,967 INFO L471 AbstractCegarLoop]: Abstraction has 638 states and 941 transitions. [2024-11-18 18:16:43,967 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.428571428571429) internal successors, (62), 14 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:16:43,967 INFO L276 IsEmpty]: Start isEmpty. Operand 638 states and 941 transitions. [2024-11-18 18:16:43,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-18 18:16:43,968 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:16:43,968 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 18:16:43,968 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-18 18:16:43,968 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:16:43,969 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:16:43,969 INFO L85 PathProgramCache]: Analyzing trace with hash 1048020342, now seen corresponding path program 1 times [2024-11-18 18:16:43,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:16:43,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839120461] [2024-11-18 18:16:43,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:16:43,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:16:44,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:16:44,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:16:44,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:16:44,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839120461] [2024-11-18 18:16:44,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1839120461] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 18:16:44,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 18:16:44,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-18 18:16:44,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460162596] [2024-11-18 18:16:44,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:16:44,331 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-18 18:16:44,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:16:44,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-18 18:16:44,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-18 18:16:44,332 INFO L87 Difference]: Start difference. First operand 638 states and 941 transitions. Second operand has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:16:44,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:16:44,407 INFO L93 Difference]: Finished difference Result 1244 states and 1836 transitions. [2024-11-18 18:16:44,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-18 18:16:44,408 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2024-11-18 18:16:44,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:16:44,411 INFO L225 Difference]: With dead ends: 1244 [2024-11-18 18:16:44,411 INFO L226 Difference]: Without dead ends: 654 [2024-11-18 18:16:44,412 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-18 18:16:44,413 INFO L432 NwaCegarLoop]: 803 mSDtfsCounter, 7 mSDsluCounter, 3201 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 4004 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 18:16:44,413 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 4004 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 18:16:44,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 654 states. [2024-11-18 18:16:44,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 654 to 648. [2024-11-18 18:16:44,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 648 states, 647 states have (on average 1.472952086553323) internal successors, (953), 647 states have internal predecessors, (953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:16:44,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 648 states to 648 states and 953 transitions. [2024-11-18 18:16:44,425 INFO L78 Accepts]: Start accepts. Automaton has 648 states and 953 transitions. Word has length 63 [2024-11-18 18:16:44,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:16:44,425 INFO L471 AbstractCegarLoop]: Abstraction has 648 states and 953 transitions. [2024-11-18 18:16:44,425 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:16:44,426 INFO L276 IsEmpty]: Start isEmpty. Operand 648 states and 953 transitions. [2024-11-18 18:16:44,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-18 18:16:44,426 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:16:44,426 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 18:16:44,427 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-18 18:16:44,427 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:16:44,427 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:16:44,427 INFO L85 PathProgramCache]: Analyzing trace with hash -2076075025, now seen corresponding path program 1 times [2024-11-18 18:16:44,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:16:44,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890064385] [2024-11-18 18:16:44,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:16:44,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:16:44,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:16:45,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:16:45,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:16:45,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890064385] [2024-11-18 18:16:45,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [890064385] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 18:16:45,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 18:16:45,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 18:16:45,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694820044] [2024-11-18 18:16:45,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:16:45,143 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 18:16:45,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:16:45,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 18:16:45,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 18:16:45,144 INFO L87 Difference]: Start difference. First operand 648 states and 953 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:16:45,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:16:45,256 INFO L93 Difference]: Finished difference Result 1232 states and 1818 transitions. [2024-11-18 18:16:45,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 18:16:45,257 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2024-11-18 18:16:45,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:16:45,260 INFO L225 Difference]: With dead ends: 1232 [2024-11-18 18:16:45,260 INFO L226 Difference]: Without dead ends: 647 [2024-11-18 18:16:45,261 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-18 18:16:45,263 INFO L432 NwaCegarLoop]: 802 mSDtfsCounter, 61 mSDsluCounter, 3174 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 3976 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 18:16:45,263 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 3976 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 18:16:45,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 647 states. [2024-11-18 18:16:45,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 647 to 647. [2024-11-18 18:16:45,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 647 states, 646 states have (on average 1.4705882352941178) internal successors, (950), 646 states have internal predecessors, (950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:16:45,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 647 states to 647 states and 950 transitions. [2024-11-18 18:16:45,275 INFO L78 Accepts]: Start accepts. Automaton has 647 states and 950 transitions. Word has length 63 [2024-11-18 18:16:45,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:16:45,276 INFO L471 AbstractCegarLoop]: Abstraction has 647 states and 950 transitions. [2024-11-18 18:16:45,276 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:16:45,276 INFO L276 IsEmpty]: Start isEmpty. Operand 647 states and 950 transitions. [2024-11-18 18:16:45,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-18 18:16:45,277 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:16:45,277 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 18:16:45,277 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-18 18:16:45,277 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:16:45,278 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:16:45,278 INFO L85 PathProgramCache]: Analyzing trace with hash 613810560, now seen corresponding path program 1 times [2024-11-18 18:16:45,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:16:45,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801081223] [2024-11-18 18:16:45,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:16:45,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:16:45,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:16:46,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:16:46,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:16:46,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801081223] [2024-11-18 18:16:46,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801081223] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 18:16:46,003 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 18:16:46,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-18 18:16:46,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441198170] [2024-11-18 18:16:46,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:16:46,003 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-18 18:16:46,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:16:46,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-18 18:16:46,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-18 18:16:46,005 INFO L87 Difference]: Start difference. First operand 647 states and 950 transitions. Second operand has 10 states, 10 states have (on average 6.4) internal successors, (64), 10 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:16:46,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:16:46,292 INFO L93 Difference]: Finished difference Result 1585 states and 2332 transitions. [2024-11-18 18:16:46,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-18 18:16:46,293 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.4) internal successors, (64), 10 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2024-11-18 18:16:46,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:16:46,297 INFO L225 Difference]: With dead ends: 1585 [2024-11-18 18:16:46,297 INFO L226 Difference]: Without dead ends: 969 [2024-11-18 18:16:46,298 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2024-11-18 18:16:46,299 INFO L432 NwaCegarLoop]: 782 mSDtfsCounter, 569 mSDsluCounter, 5454 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 569 SdHoareTripleChecker+Valid, 6236 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 18:16:46,300 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [569 Valid, 6236 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 18:16:46,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 969 states. [2024-11-18 18:16:46,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 969 to 648. [2024-11-18 18:16:46,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 648 states, 647 states have (on average 1.4667697063369398) internal successors, (949), 647 states have internal predecessors, (949), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:16:46,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 648 states to 648 states and 949 transitions. [2024-11-18 18:16:46,315 INFO L78 Accepts]: Start accepts. Automaton has 648 states and 949 transitions. Word has length 64 [2024-11-18 18:16:46,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:16:46,316 INFO L471 AbstractCegarLoop]: Abstraction has 648 states and 949 transitions. [2024-11-18 18:16:46,316 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.4) internal successors, (64), 10 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:16:46,316 INFO L276 IsEmpty]: Start isEmpty. Operand 648 states and 949 transitions. [2024-11-18 18:16:46,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-18 18:16:46,317 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:16:46,317 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 18:16:46,317 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-18 18:16:46,317 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:16:46,318 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:16:46,318 INFO L85 PathProgramCache]: Analyzing trace with hash -899707374, now seen corresponding path program 1 times [2024-11-18 18:16:46,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:16:46,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547194965] [2024-11-18 18:16:46,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:16:46,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:16:46,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:16:46,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:16:46,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:16:46,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547194965] [2024-11-18 18:16:46,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [547194965] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 18:16:46,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 18:16:46,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 18:16:46,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553751296] [2024-11-18 18:16:46,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:16:46,597 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 18:16:46,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:16:46,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 18:16:46,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 18:16:46,598 INFO L87 Difference]: Start difference. First operand 648 states and 949 transitions. Second operand has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:16:46,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:16:46,695 INFO L93 Difference]: Finished difference Result 1576 states and 2317 transitions. [2024-11-18 18:16:46,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 18:16:46,696 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2024-11-18 18:16:46,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:16:46,699 INFO L225 Difference]: With dead ends: 1576 [2024-11-18 18:16:46,700 INFO L226 Difference]: Without dead ends: 965 [2024-11-18 18:16:46,701 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-18 18:16:46,701 INFO L432 NwaCegarLoop]: 797 mSDtfsCounter, 556 mSDsluCounter, 3171 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 556 SdHoareTripleChecker+Valid, 3968 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 18:16:46,702 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [556 Valid, 3968 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 18:16:46,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 965 states. [2024-11-18 18:16:46,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 965 to 647. [2024-11-18 18:16:46,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 647 states, 646 states have (on average 1.4643962848297214) internal successors, (946), 646 states have internal predecessors, (946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:16:46,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 647 states to 647 states and 946 transitions. [2024-11-18 18:16:46,717 INFO L78 Accepts]: Start accepts. Automaton has 647 states and 946 transitions. Word has length 65 [2024-11-18 18:16:46,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:16:46,718 INFO L471 AbstractCegarLoop]: Abstraction has 647 states and 946 transitions. [2024-11-18 18:16:46,718 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:16:46,718 INFO L276 IsEmpty]: Start isEmpty. Operand 647 states and 946 transitions. [2024-11-18 18:16:46,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-18 18:16:46,718 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:16:46,719 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 18:16:46,719 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-18 18:16:46,719 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:16:46,719 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:16:46,720 INFO L85 PathProgramCache]: Analyzing trace with hash 361759858, now seen corresponding path program 1 times [2024-11-18 18:16:46,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:16:46,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606345834] [2024-11-18 18:16:46,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:16:46,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:16:46,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:16:47,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:16:47,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:16:47,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606345834] [2024-11-18 18:16:47,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [606345834] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 18:16:47,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 18:16:47,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 18:16:47,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910675299] [2024-11-18 18:16:47,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:16:47,142 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 18:16:47,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:16:47,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 18:16:47,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 18:16:47,143 INFO L87 Difference]: Start difference. First operand 647 states and 946 transitions. Second operand has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:16:47,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:16:47,245 INFO L93 Difference]: Finished difference Result 1684 states and 2477 transitions. [2024-11-18 18:16:47,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-18 18:16:47,246 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2024-11-18 18:16:47,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:16:47,251 INFO L225 Difference]: With dead ends: 1684 [2024-11-18 18:16:47,251 INFO L226 Difference]: Without dead ends: 1069 [2024-11-18 18:16:47,253 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-18 18:16:47,254 INFO L432 NwaCegarLoop]: 799 mSDtfsCounter, 721 mSDsluCounter, 3176 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 721 SdHoareTripleChecker+Valid, 3975 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 18:16:47,254 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [721 Valid, 3975 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 18:16:47,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1069 states. [2024-11-18 18:16:47,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1069 to 643. [2024-11-18 18:16:47,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 643 states, 642 states have (on average 1.4626168224299065) internal successors, (939), 642 states have internal predecessors, (939), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:16:47,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 643 states to 643 states and 939 transitions. [2024-11-18 18:16:47,271 INFO L78 Accepts]: Start accepts. Automaton has 643 states and 939 transitions. Word has length 65 [2024-11-18 18:16:47,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:16:47,271 INFO L471 AbstractCegarLoop]: Abstraction has 643 states and 939 transitions. [2024-11-18 18:16:47,272 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:16:47,272 INFO L276 IsEmpty]: Start isEmpty. Operand 643 states and 939 transitions. [2024-11-18 18:16:47,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-18 18:16:47,272 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:16:47,272 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 18:16:47,273 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-18 18:16:47,273 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:16:47,273 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:16:47,273 INFO L85 PathProgramCache]: Analyzing trace with hash 390089409, now seen corresponding path program 1 times [2024-11-18 18:16:47,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:16:47,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594901276] [2024-11-18 18:16:47,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:16:47,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:16:47,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:16:47,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:16:47,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:16:47,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594901276] [2024-11-18 18:16:47,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594901276] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 18:16:47,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 18:16:47,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-18 18:16:47,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916186477] [2024-11-18 18:16:47,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:16:47,765 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-18 18:16:47,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:16:47,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-18 18:16:47,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-18 18:16:47,767 INFO L87 Difference]: Start difference. First operand 643 states and 939 transitions. Second operand has 10 states, 10 states have (on average 6.5) internal successors, (65), 10 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:16:47,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:16:47,897 INFO L93 Difference]: Finished difference Result 1274 states and 1859 transitions. [2024-11-18 18:16:47,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-18 18:16:47,898 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.5) internal successors, (65), 10 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2024-11-18 18:16:47,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:16:47,900 INFO L225 Difference]: With dead ends: 1274 [2024-11-18 18:16:47,900 INFO L226 Difference]: Without dead ends: 652 [2024-11-18 18:16:47,901 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-18 18:16:47,902 INFO L432 NwaCegarLoop]: 797 mSDtfsCounter, 13 mSDsluCounter, 4763 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 5560 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 18:16:47,902 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 5560 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 18:16:47,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 652 states. [2024-11-18 18:16:47,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 652 to 640. [2024-11-18 18:16:47,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 640 states, 639 states have (on average 1.460093896713615) internal successors, (933), 639 states have internal predecessors, (933), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:16:47,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 640 states to 640 states and 933 transitions. [2024-11-18 18:16:47,916 INFO L78 Accepts]: Start accepts. Automaton has 640 states and 933 transitions. Word has length 65 [2024-11-18 18:16:47,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:16:47,916 INFO L471 AbstractCegarLoop]: Abstraction has 640 states and 933 transitions. [2024-11-18 18:16:47,917 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.5) internal successors, (65), 10 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:16:47,917 INFO L276 IsEmpty]: Start isEmpty. Operand 640 states and 933 transitions. [2024-11-18 18:16:47,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-18 18:16:47,918 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:16:47,918 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 18:16:47,918 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-18 18:16:47,918 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:16:47,919 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:16:47,919 INFO L85 PathProgramCache]: Analyzing trace with hash -517737390, now seen corresponding path program 1 times [2024-11-18 18:16:47,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:16:47,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068163477] [2024-11-18 18:16:47,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:16:47,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:16:47,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:16:48,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:16:48,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:16:48,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068163477] [2024-11-18 18:16:48,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068163477] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 18:16:48,241 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 18:16:48,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-18 18:16:48,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473508264] [2024-11-18 18:16:48,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:16:48,242 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-18 18:16:48,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:16:48,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-18 18:16:48,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-18 18:16:48,243 INFO L87 Difference]: Start difference. First operand 640 states and 933 transitions. Second operand has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:16:48,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:16:48,321 INFO L93 Difference]: Finished difference Result 1243 states and 1823 transitions. [2024-11-18 18:16:48,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-18 18:16:48,322 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2024-11-18 18:16:48,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:16:48,325 INFO L225 Difference]: With dead ends: 1243 [2024-11-18 18:16:48,325 INFO L226 Difference]: Without dead ends: 656 [2024-11-18 18:16:48,326 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-18 18:16:48,326 INFO L432 NwaCegarLoop]: 803 mSDtfsCounter, 7 mSDsluCounter, 3201 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 4004 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 18:16:48,327 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 4004 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 18:16:48,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 656 states. [2024-11-18 18:16:48,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 656 to 650. [2024-11-18 18:16:48,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 650 states, 649 states have (on average 1.4560862865947612) internal successors, (945), 649 states have internal predecessors, (945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:16:48,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 650 states to 650 states and 945 transitions. [2024-11-18 18:16:48,339 INFO L78 Accepts]: Start accepts. Automaton has 650 states and 945 transitions. Word has length 66 [2024-11-18 18:16:48,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:16:48,339 INFO L471 AbstractCegarLoop]: Abstraction has 650 states and 945 transitions. [2024-11-18 18:16:48,339 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:16:48,339 INFO L276 IsEmpty]: Start isEmpty. Operand 650 states and 945 transitions. [2024-11-18 18:16:48,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-18 18:16:48,340 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:16:48,340 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 18:16:48,340 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-18 18:16:48,340 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:16:48,341 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:16:48,341 INFO L85 PathProgramCache]: Analyzing trace with hash -1934778955, now seen corresponding path program 1 times [2024-11-18 18:16:48,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:16:48,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623279559] [2024-11-18 18:16:48,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:16:48,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:16:48,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:16:49,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:16:49,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:16:49,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623279559] [2024-11-18 18:16:49,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623279559] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 18:16:49,191 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 18:16:49,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-18 18:16:49,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387226797] [2024-11-18 18:16:49,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:16:49,192 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-18 18:16:49,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:16:49,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-18 18:16:49,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2024-11-18 18:16:49,193 INFO L87 Difference]: Start difference. First operand 650 states and 945 transitions. Second operand has 13 states, 13 states have (on average 5.076923076923077) internal successors, (66), 13 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:16:49,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:16:49,474 INFO L93 Difference]: Finished difference Result 1274 states and 1858 transitions. [2024-11-18 18:16:49,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-18 18:16:49,475 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.076923076923077) internal successors, (66), 13 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2024-11-18 18:16:49,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:16:49,477 INFO L225 Difference]: With dead ends: 1274 [2024-11-18 18:16:49,477 INFO L226 Difference]: Without dead ends: 662 [2024-11-18 18:16:49,478 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2024-11-18 18:16:49,479 INFO L432 NwaCegarLoop]: 794 mSDtfsCounter, 16 mSDsluCounter, 8660 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 9454 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 18:16:49,479 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 9454 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 18:16:49,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 662 states. [2024-11-18 18:16:49,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 662 to 660. [2024-11-18 18:16:49,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 660 states, 659 states have (on average 1.4506828528072837) internal successors, (956), 659 states have internal predecessors, (956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:16:49,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 660 states to 660 states and 956 transitions. [2024-11-18 18:16:49,491 INFO L78 Accepts]: Start accepts. Automaton has 660 states and 956 transitions. Word has length 66 [2024-11-18 18:16:49,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:16:49,491 INFO L471 AbstractCegarLoop]: Abstraction has 660 states and 956 transitions. [2024-11-18 18:16:49,491 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.076923076923077) internal successors, (66), 13 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:16:49,491 INFO L276 IsEmpty]: Start isEmpty. Operand 660 states and 956 transitions. [2024-11-18 18:16:49,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-18 18:16:49,492 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:16:49,492 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 18:16:49,492 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-18 18:16:49,493 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:16:49,493 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:16:49,493 INFO L85 PathProgramCache]: Analyzing trace with hash 572920751, now seen corresponding path program 1 times [2024-11-18 18:16:49,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:16:49,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037172807] [2024-11-18 18:16:49,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:16:49,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:16:49,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:16:50,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:16:50,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:16:50,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037172807] [2024-11-18 18:16:50,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2037172807] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 18:16:50,218 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 18:16:50,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-18 18:16:50,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041179451] [2024-11-18 18:16:50,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:16:50,219 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-18 18:16:50,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:16:50,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-18 18:16:50,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-18 18:16:50,220 INFO L87 Difference]: Start difference. First operand 660 states and 956 transitions. Second operand has 10 states, 10 states have (on average 6.6) internal successors, (66), 10 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:16:50,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:16:50,396 INFO L93 Difference]: Finished difference Result 1287 states and 1872 transitions. [2024-11-18 18:16:50,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-18 18:16:50,397 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.6) internal successors, (66), 10 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2024-11-18 18:16:50,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:16:50,399 INFO L225 Difference]: With dead ends: 1287 [2024-11-18 18:16:50,399 INFO L226 Difference]: Without dead ends: 660 [2024-11-18 18:16:50,401 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-11-18 18:16:50,401 INFO L432 NwaCegarLoop]: 802 mSDtfsCounter, 15 mSDsluCounter, 4764 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 5566 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 18:16:50,402 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 5566 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 18:16:50,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 660 states. [2024-11-18 18:16:50,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 660 to 660. [2024-11-18 18:16:50,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 660 states, 659 states have (on average 1.449165402124431) internal successors, (955), 659 states have internal predecessors, (955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:16:50,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 660 states to 660 states and 955 transitions. [2024-11-18 18:16:50,415 INFO L78 Accepts]: Start accepts. Automaton has 660 states and 955 transitions. Word has length 66 [2024-11-18 18:16:50,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:16:50,415 INFO L471 AbstractCegarLoop]: Abstraction has 660 states and 955 transitions. [2024-11-18 18:16:50,416 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.6) internal successors, (66), 10 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:16:50,416 INFO L276 IsEmpty]: Start isEmpty. Operand 660 states and 955 transitions. [2024-11-18 18:16:50,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-18 18:16:50,417 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:16:50,417 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 18:16:50,417 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-18 18:16:50,417 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:16:50,418 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:16:50,418 INFO L85 PathProgramCache]: Analyzing trace with hash 2095379606, now seen corresponding path program 1 times [2024-11-18 18:16:50,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:16:50,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652146394] [2024-11-18 18:16:50,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:16:50,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:16:50,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:16:50,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:16:50,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:16:50,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652146394] [2024-11-18 18:16:50,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [652146394] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 18:16:50,787 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 18:16:50,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-18 18:16:50,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234285630] [2024-11-18 18:16:50,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:16:50,788 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-18 18:16:50,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:16:50,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-18 18:16:50,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-18 18:16:50,789 INFO L87 Difference]: Start difference. First operand 660 states and 955 transitions. Second operand has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:16:50,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:16:50,876 INFO L93 Difference]: Finished difference Result 1261 states and 1843 transitions. [2024-11-18 18:16:50,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-18 18:16:50,877 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2024-11-18 18:16:50,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:16:50,879 INFO L225 Difference]: With dead ends: 1261 [2024-11-18 18:16:50,880 INFO L226 Difference]: Without dead ends: 676 [2024-11-18 18:16:50,881 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-18 18:16:50,881 INFO L432 NwaCegarLoop]: 803 mSDtfsCounter, 7 mSDsluCounter, 3997 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 4800 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 18:16:50,881 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 4800 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 18:16:50,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 676 states. [2024-11-18 18:16:50,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 676 to 670. [2024-11-18 18:16:50,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 670 states, 669 states have (on average 1.445440956651719) internal successors, (967), 669 states have internal predecessors, (967), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:16:50,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 670 states to 670 states and 967 transitions. [2024-11-18 18:16:50,894 INFO L78 Accepts]: Start accepts. Automaton has 670 states and 967 transitions. Word has length 67 [2024-11-18 18:16:50,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:16:50,894 INFO L471 AbstractCegarLoop]: Abstraction has 670 states and 967 transitions. [2024-11-18 18:16:50,894 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:16:50,894 INFO L276 IsEmpty]: Start isEmpty. Operand 670 states and 967 transitions. [2024-11-18 18:16:50,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-18 18:16:50,895 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:16:50,895 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 18:16:50,895 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-18 18:16:50,896 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:16:50,896 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:16:50,896 INFO L85 PathProgramCache]: Analyzing trace with hash 1043970387, now seen corresponding path program 1 times [2024-11-18 18:16:50,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:16:50,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351911647] [2024-11-18 18:16:50,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:16:50,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:16:50,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:16:51,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:16:51,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:16:51,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351911647] [2024-11-18 18:16:51,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [351911647] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 18:16:51,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 18:16:51,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-18 18:16:51,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577972358] [2024-11-18 18:16:51,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:16:51,668 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-18 18:16:51,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:16:51,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-18 18:16:51,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2024-11-18 18:16:51,670 INFO L87 Difference]: Start difference. First operand 670 states and 967 transitions. Second operand has 14 states, 14 states have (on average 4.785714285714286) internal successors, (67), 14 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:16:51,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:16:51,965 INFO L93 Difference]: Finished difference Result 1286 states and 1871 transitions. [2024-11-18 18:16:51,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-18 18:16:51,966 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.785714285714286) internal successors, (67), 14 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2024-11-18 18:16:51,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:16:51,968 INFO L225 Difference]: With dead ends: 1286 [2024-11-18 18:16:51,969 INFO L226 Difference]: Without dead ends: 676 [2024-11-18 18:16:51,970 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=207, Unknown=0, NotChecked=0, Total=240 [2024-11-18 18:16:51,971 INFO L432 NwaCegarLoop]: 794 mSDtfsCounter, 14 mSDsluCounter, 9436 mSDsCounter, 0 mSdLazyCounter, 300 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 10230 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 18:16:51,971 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 10230 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 300 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 18:16:51,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 676 states. [2024-11-18 18:16:51,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 676 to 676. [2024-11-18 18:16:51,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 676 states, 675 states have (on average 1.4414814814814816) internal successors, (973), 675 states have internal predecessors, (973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:16:51,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 676 states to 676 states and 973 transitions. [2024-11-18 18:16:51,986 INFO L78 Accepts]: Start accepts. Automaton has 676 states and 973 transitions. Word has length 67 [2024-11-18 18:16:51,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:16:51,986 INFO L471 AbstractCegarLoop]: Abstraction has 676 states and 973 transitions. [2024-11-18 18:16:51,986 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.785714285714286) internal successors, (67), 14 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:16:51,986 INFO L276 IsEmpty]: Start isEmpty. Operand 676 states and 973 transitions. [2024-11-18 18:16:51,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-18 18:16:51,987 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:16:51,987 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 18:16:51,987 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-18 18:16:51,987 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:16:51,988 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:16:51,988 INFO L85 PathProgramCache]: Analyzing trace with hash -1575066044, now seen corresponding path program 1 times [2024-11-18 18:16:51,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:16:51,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283271290] [2024-11-18 18:16:51,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:16:51,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:16:52,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:16:52,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:16:52,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:16:52,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283271290] [2024-11-18 18:16:52,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283271290] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 18:16:52,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 18:16:52,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 18:16:52,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164513913] [2024-11-18 18:16:52,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:16:52,268 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 18:16:52,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:16:52,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 18:16:52,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 18:16:52,269 INFO L87 Difference]: Start difference. First operand 676 states and 973 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:16:52,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:16:52,310 INFO L93 Difference]: Finished difference Result 1285 states and 1868 transitions. [2024-11-18 18:16:52,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 18:16:52,311 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2024-11-18 18:16:52,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:16:52,314 INFO L225 Difference]: With dead ends: 1285 [2024-11-18 18:16:52,315 INFO L226 Difference]: Without dead ends: 638 [2024-11-18 18:16:52,316 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-18 18:16:52,317 INFO L432 NwaCegarLoop]: 806 mSDtfsCounter, 11 mSDsluCounter, 2401 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 3207 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 18:16:52,317 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 3207 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 18:16:52,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 638 states. [2024-11-18 18:16:52,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 638 to 638. [2024-11-18 18:16:52,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 638 states, 637 states have (on average 1.456828885400314) internal successors, (928), 637 states have internal predecessors, (928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:16:52,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 638 states to 638 states and 928 transitions. [2024-11-18 18:16:52,332 INFO L78 Accepts]: Start accepts. Automaton has 638 states and 928 transitions. Word has length 67 [2024-11-18 18:16:52,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:16:52,332 INFO L471 AbstractCegarLoop]: Abstraction has 638 states and 928 transitions. [2024-11-18 18:16:52,333 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:16:52,333 INFO L276 IsEmpty]: Start isEmpty. Operand 638 states and 928 transitions. [2024-11-18 18:16:52,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-18 18:16:52,333 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:16:52,333 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 18:16:52,334 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-18 18:16:52,334 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:16:52,334 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:16:52,334 INFO L85 PathProgramCache]: Analyzing trace with hash -1032651214, now seen corresponding path program 1 times [2024-11-18 18:16:52,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:16:52,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869152715] [2024-11-18 18:16:52,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:16:52,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:16:52,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:16:52,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:16:52,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:16:52,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869152715] [2024-11-18 18:16:52,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869152715] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 18:16:52,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 18:16:52,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-18 18:16:52,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302157066] [2024-11-18 18:16:52,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:16:52,648 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-18 18:16:52,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:16:52,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-18 18:16:52,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-18 18:16:52,649 INFO L87 Difference]: Start difference. First operand 638 states and 928 transitions. Second operand has 8 states, 8 states have (on average 8.5) internal successors, (68), 8 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:16:52,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:16:52,718 INFO L93 Difference]: Finished difference Result 1242 states and 1821 transitions. [2024-11-18 18:16:52,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-18 18:16:52,719 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 8 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2024-11-18 18:16:52,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:16:52,721 INFO L225 Difference]: With dead ends: 1242 [2024-11-18 18:16:52,721 INFO L226 Difference]: Without dead ends: 667 [2024-11-18 18:16:52,723 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-18 18:16:52,723 INFO L432 NwaCegarLoop]: 800 mSDtfsCounter, 11 mSDsluCounter, 3203 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 4003 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 18:16:52,723 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 4003 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 18:16:52,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 667 states. [2024-11-18 18:16:52,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 667 to 659. [2024-11-18 18:16:52,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 659 states, 658 states have (on average 1.4544072948328268) internal successors, (957), 658 states have internal predecessors, (957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:16:52,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 659 states to 659 states and 957 transitions. [2024-11-18 18:16:52,735 INFO L78 Accepts]: Start accepts. Automaton has 659 states and 957 transitions. Word has length 68 [2024-11-18 18:16:52,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:16:52,735 INFO L471 AbstractCegarLoop]: Abstraction has 659 states and 957 transitions. [2024-11-18 18:16:52,736 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 8 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:16:52,736 INFO L276 IsEmpty]: Start isEmpty. Operand 659 states and 957 transitions. [2024-11-18 18:16:52,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-18 18:16:52,736 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:16:52,736 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 18:16:52,737 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-18 18:16:52,737 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:16:52,737 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:16:52,737 INFO L85 PathProgramCache]: Analyzing trace with hash 580019787, now seen corresponding path program 1 times [2024-11-18 18:16:52,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:16:52,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380616131] [2024-11-18 18:16:52,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:16:52,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:16:52,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:16:53,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:16:53,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:16:53,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380616131] [2024-11-18 18:16:53,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [380616131] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 18:16:53,080 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 18:16:53,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-18 18:16:53,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980425322] [2024-11-18 18:16:53,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:16:53,081 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-18 18:16:53,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:16:53,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-18 18:16:53,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-18 18:16:53,082 INFO L87 Difference]: Start difference. First operand 659 states and 957 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:16:53,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:16:53,198 INFO L93 Difference]: Finished difference Result 1643 states and 2415 transitions. [2024-11-18 18:16:53,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-18 18:16:53,199 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2024-11-18 18:16:53,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:16:53,202 INFO L225 Difference]: With dead ends: 1643 [2024-11-18 18:16:53,202 INFO L226 Difference]: Without dead ends: 1042 [2024-11-18 18:16:53,204 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-11-18 18:16:53,205 INFO L432 NwaCegarLoop]: 795 mSDtfsCounter, 656 mSDsluCounter, 3957 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 656 SdHoareTripleChecker+Valid, 4752 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 18:16:53,205 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [656 Valid, 4752 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 18:16:53,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1042 states. [2024-11-18 18:16:53,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1042 to 648. [2024-11-18 18:16:53,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 648 states, 647 states have (on average 1.4497681607418855) internal successors, (938), 647 states have internal predecessors, (938), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:16:53,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 648 states to 648 states and 938 transitions. [2024-11-18 18:16:53,220 INFO L78 Accepts]: Start accepts. Automaton has 648 states and 938 transitions. Word has length 68 [2024-11-18 18:16:53,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:16:53,221 INFO L471 AbstractCegarLoop]: Abstraction has 648 states and 938 transitions. [2024-11-18 18:16:53,221 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:16:53,221 INFO L276 IsEmpty]: Start isEmpty. Operand 648 states and 938 transitions. [2024-11-18 18:16:53,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-18 18:16:53,221 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:16:53,222 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 18:16:53,222 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-18 18:16:53,222 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:16:53,222 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:16:53,222 INFO L85 PathProgramCache]: Analyzing trace with hash -1808042155, now seen corresponding path program 1 times [2024-11-18 18:16:53,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:16:53,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613830584] [2024-11-18 18:16:53,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:16:53,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:16:53,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:16:53,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:16:53,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:16:53,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613830584] [2024-11-18 18:16:53,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1613830584] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 18:16:53,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 18:16:53,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-11-18 18:16:53,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415892130] [2024-11-18 18:16:53,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:16:53,989 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-18 18:16:53,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:16:53,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-18 18:16:53,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=294, Unknown=0, NotChecked=0, Total=342 [2024-11-18 18:16:53,991 INFO L87 Difference]: Start difference. First operand 648 states and 938 transitions. Second operand has 19 states, 19 states have (on average 3.5789473684210527) internal successors, (68), 19 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:16:54,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:16:54,740 INFO L93 Difference]: Finished difference Result 1786 states and 2618 transitions. [2024-11-18 18:16:54,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-18 18:16:54,741 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.5789473684210527) internal successors, (68), 19 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2024-11-18 18:16:54,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:16:54,745 INFO L225 Difference]: With dead ends: 1786 [2024-11-18 18:16:54,745 INFO L226 Difference]: Without dead ends: 1178 [2024-11-18 18:16:54,747 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=72, Invalid=480, Unknown=0, NotChecked=0, Total=552 [2024-11-18 18:16:54,748 INFO L432 NwaCegarLoop]: 816 mSDtfsCounter, 732 mSDsluCounter, 12804 mSDsCounter, 0 mSdLazyCounter, 832 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 732 SdHoareTripleChecker+Valid, 13620 SdHoareTripleChecker+Invalid, 833 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 832 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-18 18:16:54,748 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [732 Valid, 13620 Invalid, 833 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 832 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-18 18:16:54,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1178 states. [2024-11-18 18:16:54,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1178 to 671. [2024-11-18 18:16:54,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 671 states, 670 states have (on average 1.4522388059701492) internal successors, (973), 670 states have internal predecessors, (973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:16:54,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 671 states to 671 states and 973 transitions. [2024-11-18 18:16:54,772 INFO L78 Accepts]: Start accepts. Automaton has 671 states and 973 transitions. Word has length 68 [2024-11-18 18:16:54,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:16:54,772 INFO L471 AbstractCegarLoop]: Abstraction has 671 states and 973 transitions. [2024-11-18 18:16:54,773 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.5789473684210527) internal successors, (68), 19 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:16:54,773 INFO L276 IsEmpty]: Start isEmpty. Operand 671 states and 973 transitions. [2024-11-18 18:16:54,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-18 18:16:54,773 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:16:54,773 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 18:16:54,774 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-18 18:16:54,774 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:16:54,774 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:16:54,774 INFO L85 PathProgramCache]: Analyzing trace with hash 2133392751, now seen corresponding path program 1 times [2024-11-18 18:16:54,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:16:54,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488301668] [2024-11-18 18:16:54,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:16:54,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:16:54,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:16:55,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:16:55,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:16:55,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488301668] [2024-11-18 18:16:55,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488301668] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 18:16:55,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 18:16:55,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-18 18:16:55,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702746627] [2024-11-18 18:16:55,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:16:55,109 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-18 18:16:55,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:16:55,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-18 18:16:55,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-18 18:16:55,110 INFO L87 Difference]: Start difference. First operand 671 states and 973 transitions. Second operand has 8 states, 8 states have (on average 8.625) internal successors, (69), 8 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:16:55,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:16:55,187 INFO L93 Difference]: Finished difference Result 1298 states and 1901 transitions. [2024-11-18 18:16:55,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-18 18:16:55,188 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 8 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2024-11-18 18:16:55,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:16:55,190 INFO L225 Difference]: With dead ends: 1298 [2024-11-18 18:16:55,190 INFO L226 Difference]: Without dead ends: 700 [2024-11-18 18:16:55,191 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-18 18:16:55,192 INFO L432 NwaCegarLoop]: 800 mSDtfsCounter, 11 mSDsluCounter, 3992 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 4792 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 18:16:55,192 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 4792 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 18:16:55,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 700 states. [2024-11-18 18:16:55,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 700 to 692. [2024-11-18 18:16:55,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 692 states, 691 states have (on average 1.4500723589001447) internal successors, (1002), 691 states have internal predecessors, (1002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:16:55,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 692 states to 692 states and 1002 transitions. [2024-11-18 18:16:55,205 INFO L78 Accepts]: Start accepts. Automaton has 692 states and 1002 transitions. Word has length 69 [2024-11-18 18:16:55,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:16:55,206 INFO L471 AbstractCegarLoop]: Abstraction has 692 states and 1002 transitions. [2024-11-18 18:16:55,206 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 8 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:16:55,206 INFO L276 IsEmpty]: Start isEmpty. Operand 692 states and 1002 transitions. [2024-11-18 18:16:55,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-18 18:16:55,207 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:16:55,207 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 18:16:55,207 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-18 18:16:55,207 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:16:55,208 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:16:55,208 INFO L85 PathProgramCache]: Analyzing trace with hash -1379299466, now seen corresponding path program 1 times [2024-11-18 18:16:55,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:16:55,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143922378] [2024-11-18 18:16:55,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:16:55,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:16:55,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:16:55,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:16:55,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:16:55,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143922378] [2024-11-18 18:16:55,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1143922378] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 18:16:55,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 18:16:55,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-18 18:16:55,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955175005] [2024-11-18 18:16:55,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:16:55,835 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-18 18:16:55,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:16:55,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-18 18:16:55,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-11-18 18:16:55,837 INFO L87 Difference]: Start difference. First operand 692 states and 1002 transitions. Second operand has 13 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 13 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:16:56,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:16:56,208 INFO L93 Difference]: Finished difference Result 1702 states and 2499 transitions. [2024-11-18 18:16:56,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-18 18:16:56,208 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 13 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2024-11-18 18:16:56,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:16:56,213 INFO L225 Difference]: With dead ends: 1702 [2024-11-18 18:16:56,213 INFO L226 Difference]: Without dead ends: 1083 [2024-11-18 18:16:56,214 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=394, Unknown=0, NotChecked=0, Total=462 [2024-11-18 18:16:56,215 INFO L432 NwaCegarLoop]: 784 mSDtfsCounter, 656 mSDsluCounter, 8065 mSDsCounter, 0 mSdLazyCounter, 319 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 656 SdHoareTripleChecker+Valid, 8849 SdHoareTripleChecker+Invalid, 322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 18:16:56,215 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [656 Valid, 8849 Invalid, 322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 319 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 18:16:56,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1083 states. [2024-11-18 18:16:56,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1083 to 687. [2024-11-18 18:16:56,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 687 states, 686 states have (on average 1.4475218658892128) internal successors, (993), 686 states have internal predecessors, (993), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:16:56,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 687 states to 687 states and 993 transitions. [2024-11-18 18:16:56,233 INFO L78 Accepts]: Start accepts. Automaton has 687 states and 993 transitions. Word has length 69 [2024-11-18 18:16:56,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:16:56,234 INFO L471 AbstractCegarLoop]: Abstraction has 687 states and 993 transitions. [2024-11-18 18:16:56,234 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 13 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:16:56,234 INFO L276 IsEmpty]: Start isEmpty. Operand 687 states and 993 transitions. [2024-11-18 18:16:56,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-18 18:16:56,235 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:16:56,235 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 18:16:56,235 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-18 18:16:56,235 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:16:56,236 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:16:56,236 INFO L85 PathProgramCache]: Analyzing trace with hash -952703053, now seen corresponding path program 1 times [2024-11-18 18:16:56,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:16:56,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249131378] [2024-11-18 18:16:56,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:16:56,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:16:56,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:16:57,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:16:57,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:16:57,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1249131378] [2024-11-18 18:16:57,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1249131378] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 18:16:57,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 18:16:57,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-18 18:16:57,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536662657] [2024-11-18 18:16:57,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:16:57,016 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-18 18:16:57,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:16:57,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-18 18:16:57,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2024-11-18 18:16:57,018 INFO L87 Difference]: Start difference. First operand 687 states and 993 transitions. Second operand has 16 states, 16 states have (on average 4.3125) internal successors, (69), 16 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:16:57,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:16:57,436 INFO L93 Difference]: Finished difference Result 1357 states and 1980 transitions. [2024-11-18 18:16:57,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-18 18:16:57,437 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 4.3125) internal successors, (69), 16 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2024-11-18 18:16:57,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:16:57,439 INFO L225 Difference]: With dead ends: 1357 [2024-11-18 18:16:57,439 INFO L226 Difference]: Without dead ends: 718 [2024-11-18 18:16:57,440 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2024-11-18 18:16:57,441 INFO L432 NwaCegarLoop]: 791 mSDtfsCounter, 19 mSDsluCounter, 10945 mSDsCounter, 0 mSdLazyCounter, 641 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 11736 SdHoareTripleChecker+Invalid, 641 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 641 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 18:16:57,441 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 11736 Invalid, 641 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 641 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 18:16:57,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 718 states. [2024-11-18 18:16:57,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 718 to 714. [2024-11-18 18:16:57,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 714 states, 713 states have (on average 1.450210378681627) internal successors, (1034), 713 states have internal predecessors, (1034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:16:57,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 714 states to 714 states and 1034 transitions. [2024-11-18 18:16:57,452 INFO L78 Accepts]: Start accepts. Automaton has 714 states and 1034 transitions. Word has length 69 [2024-11-18 18:16:57,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:16:57,452 INFO L471 AbstractCegarLoop]: Abstraction has 714 states and 1034 transitions. [2024-11-18 18:16:57,452 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 4.3125) internal successors, (69), 16 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:16:57,453 INFO L276 IsEmpty]: Start isEmpty. Operand 714 states and 1034 transitions. [2024-11-18 18:16:57,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-18 18:16:57,453 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:16:57,453 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 18:16:57,453 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-18 18:16:57,454 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:16:57,454 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:16:57,454 INFO L85 PathProgramCache]: Analyzing trace with hash -333155687, now seen corresponding path program 1 times [2024-11-18 18:16:57,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:16:57,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541627932] [2024-11-18 18:16:57,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:16:57,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:16:57,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:16:57,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:16:57,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:16:57,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541627932] [2024-11-18 18:16:57,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1541627932] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 18:16:57,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 18:16:57,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-18 18:16:57,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036063613] [2024-11-18 18:16:57,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:16:57,850 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-18 18:16:57,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:16:57,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-18 18:16:57,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-18 18:16:57,851 INFO L87 Difference]: Start difference. First operand 714 states and 1034 transitions. Second operand has 8 states, 8 states have (on average 8.75) internal successors, (70), 8 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:16:57,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:16:57,931 INFO L93 Difference]: Finished difference Result 1369 states and 2004 transitions. [2024-11-18 18:16:57,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-18 18:16:57,932 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.75) internal successors, (70), 8 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-18 18:16:57,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:16:57,935 INFO L225 Difference]: With dead ends: 1369 [2024-11-18 18:16:57,935 INFO L226 Difference]: Without dead ends: 732 [2024-11-18 18:16:57,937 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-18 18:16:57,937 INFO L432 NwaCegarLoop]: 800 mSDtfsCounter, 10 mSDsluCounter, 4782 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 5582 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 18:16:57,937 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 5582 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 18:16:57,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 732 states. [2024-11-18 18:16:57,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 732 to 728. [2024-11-18 18:16:57,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 728 states, 727 states have (on average 1.4484181568088033) internal successors, (1053), 727 states have internal predecessors, (1053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:16:57,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 728 states to 728 states and 1053 transitions. [2024-11-18 18:16:57,949 INFO L78 Accepts]: Start accepts. Automaton has 728 states and 1053 transitions. Word has length 70 [2024-11-18 18:16:57,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:16:57,949 INFO L471 AbstractCegarLoop]: Abstraction has 728 states and 1053 transitions. [2024-11-18 18:16:57,949 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.75) internal successors, (70), 8 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:16:57,949 INFO L276 IsEmpty]: Start isEmpty. Operand 728 states and 1053 transitions. [2024-11-18 18:16:57,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-18 18:16:57,950 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:16:57,950 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 18:16:57,950 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-18 18:16:57,950 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:16:57,951 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:16:57,951 INFO L85 PathProgramCache]: Analyzing trace with hash -988813987, now seen corresponding path program 1 times [2024-11-18 18:16:57,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:16:57,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788315025] [2024-11-18 18:16:57,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:16:57,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:16:58,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:16:59,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:16:59,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:16:59,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788315025] [2024-11-18 18:16:59,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1788315025] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 18:16:59,020 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 18:16:59,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2024-11-18 18:16:59,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452119504] [2024-11-18 18:16:59,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:16:59,021 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-11-18 18:16:59,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:16:59,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-11-18 18:16:59,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=813, Unknown=0, NotChecked=0, Total=870 [2024-11-18 18:16:59,022 INFO L87 Difference]: Start difference. First operand 728 states and 1053 transitions. Second operand has 30 states, 30 states have (on average 2.3333333333333335) internal successors, (70), 30 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:16:59,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:16:59,660 INFO L93 Difference]: Finished difference Result 1395 states and 2040 transitions. [2024-11-18 18:16:59,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-18 18:16:59,661 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 2.3333333333333335) internal successors, (70), 30 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-18 18:16:59,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:16:59,663 INFO L225 Difference]: With dead ends: 1395 [2024-11-18 18:16:59,663 INFO L226 Difference]: Without dead ends: 749 [2024-11-18 18:16:59,664 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=65, Invalid=927, Unknown=0, NotChecked=0, Total=992 [2024-11-18 18:16:59,664 INFO L432 NwaCegarLoop]: 769 mSDtfsCounter, 21 mSDsluCounter, 21438 mSDsCounter, 0 mSdLazyCounter, 1327 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 22207 SdHoareTripleChecker+Invalid, 1327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-18 18:16:59,664 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 22207 Invalid, 1327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1327 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-18 18:16:59,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 749 states. [2024-11-18 18:16:59,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 749 to 747. [2024-11-18 18:16:59,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 747 states, 746 states have (on average 1.4463806970509383) internal successors, (1079), 746 states have internal predecessors, (1079), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:16:59,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 747 states to 747 states and 1079 transitions. [2024-11-18 18:16:59,676 INFO L78 Accepts]: Start accepts. Automaton has 747 states and 1079 transitions. Word has length 70 [2024-11-18 18:16:59,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:16:59,676 INFO L471 AbstractCegarLoop]: Abstraction has 747 states and 1079 transitions. [2024-11-18 18:16:59,677 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 2.3333333333333335) internal successors, (70), 30 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:16:59,677 INFO L276 IsEmpty]: Start isEmpty. Operand 747 states and 1079 transitions. [2024-11-18 18:16:59,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-18 18:16:59,677 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:16:59,678 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 18:16:59,678 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-18 18:16:59,678 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:16:59,678 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:16:59,678 INFO L85 PathProgramCache]: Analyzing trace with hash -602207630, now seen corresponding path program 1 times [2024-11-18 18:16:59,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:16:59,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075085029] [2024-11-18 18:16:59,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:16:59,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:16:59,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:16:59,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:16:59,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:16:59,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1075085029] [2024-11-18 18:16:59,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1075085029] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 18:16:59,923 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 18:16:59,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 18:16:59,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652626852] [2024-11-18 18:16:59,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:16:59,923 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 18:16:59,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:16:59,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 18:16:59,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 18:16:59,924 INFO L87 Difference]: Start difference. First operand 747 states and 1079 transitions. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:17:00,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:17:00,031 INFO L93 Difference]: Finished difference Result 1881 states and 2760 transitions. [2024-11-18 18:17:00,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 18:17:00,032 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-18 18:17:00,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:17:00,036 INFO L225 Difference]: With dead ends: 1881 [2024-11-18 18:17:00,036 INFO L226 Difference]: Without dead ends: 1222 [2024-11-18 18:17:00,037 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-18 18:17:00,041 INFO L432 NwaCegarLoop]: 810 mSDtfsCounter, 654 mSDsluCounter, 3209 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 654 SdHoareTripleChecker+Valid, 4019 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 18:17:00,042 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [654 Valid, 4019 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 18:17:00,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1222 states. [2024-11-18 18:17:00,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1222 to 789. [2024-11-18 18:17:00,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 789 states, 788 states have (on average 1.4416243654822336) internal successors, (1136), 788 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:17:00,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 789 states to 789 states and 1136 transitions. [2024-11-18 18:17:00,057 INFO L78 Accepts]: Start accepts. Automaton has 789 states and 1136 transitions. Word has length 70 [2024-11-18 18:17:00,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:17:00,057 INFO L471 AbstractCegarLoop]: Abstraction has 789 states and 1136 transitions. [2024-11-18 18:17:00,058 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:17:00,058 INFO L276 IsEmpty]: Start isEmpty. Operand 789 states and 1136 transitions. [2024-11-18 18:17:00,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-18 18:17:00,058 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:17:00,059 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 18:17:00,060 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-18 18:17:00,060 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:17:00,060 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:17:00,061 INFO L85 PathProgramCache]: Analyzing trace with hash -440152875, now seen corresponding path program 1 times [2024-11-18 18:17:00,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:17:00,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997781567] [2024-11-18 18:17:00,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:17:00,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:17:00,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:17:00,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:17:00,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:17:00,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997781567] [2024-11-18 18:17:00,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997781567] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 18:17:00,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 18:17:00,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2024-11-18 18:17:00,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617973343] [2024-11-18 18:17:00,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:17:00,987 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-18 18:17:00,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:17:00,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-18 18:17:00,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=502, Unknown=0, NotChecked=0, Total=552 [2024-11-18 18:17:00,989 INFO L87 Difference]: Start difference. First operand 789 states and 1136 transitions. Second operand has 24 states, 24 states have (on average 2.9166666666666665) internal successors, (70), 24 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:17:01,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:17:01,552 INFO L93 Difference]: Finished difference Result 1564 states and 2275 transitions. [2024-11-18 18:17:01,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-18 18:17:01,553 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 2.9166666666666665) internal successors, (70), 24 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-18 18:17:01,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:17:01,555 INFO L225 Difference]: With dead ends: 1564 [2024-11-18 18:17:01,555 INFO L226 Difference]: Without dead ends: 842 [2024-11-18 18:17:01,560 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2024-11-18 18:17:01,561 INFO L432 NwaCegarLoop]: 791 mSDtfsCounter, 40 mSDsluCounter, 14944 mSDsCounter, 0 mSdLazyCounter, 1060 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 15735 SdHoareTripleChecker+Invalid, 1061 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1060 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-18 18:17:01,561 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 15735 Invalid, 1061 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1060 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-18 18:17:01,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 842 states. [2024-11-18 18:17:01,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 842 to 820. [2024-11-18 18:17:01,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 820 states, 819 states have (on average 1.4432234432234432) internal successors, (1182), 819 states have internal predecessors, (1182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:17:01,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 820 states to 820 states and 1182 transitions. [2024-11-18 18:17:01,573 INFO L78 Accepts]: Start accepts. Automaton has 820 states and 1182 transitions. Word has length 70 [2024-11-18 18:17:01,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:17:01,573 INFO L471 AbstractCegarLoop]: Abstraction has 820 states and 1182 transitions. [2024-11-18 18:17:01,574 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 2.9166666666666665) internal successors, (70), 24 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:17:01,574 INFO L276 IsEmpty]: Start isEmpty. Operand 820 states and 1182 transitions. [2024-11-18 18:17:01,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-18 18:17:01,574 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:17:01,575 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 18:17:01,575 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-18 18:17:01,575 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:17:01,575 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:17:01,575 INFO L85 PathProgramCache]: Analyzing trace with hash -269115927, now seen corresponding path program 1 times [2024-11-18 18:17:01,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:17:01,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734649861] [2024-11-18 18:17:01,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:17:01,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:17:01,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:17:03,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:17:03,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:17:03,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734649861] [2024-11-18 18:17:03,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734649861] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 18:17:03,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 18:17:03,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2024-11-18 18:17:03,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892235331] [2024-11-18 18:17:03,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:17:03,240 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-11-18 18:17:03,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:17:03,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-11-18 18:17:03,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=866, Unknown=0, NotChecked=0, Total=930 [2024-11-18 18:17:03,241 INFO L87 Difference]: Start difference. First operand 820 states and 1182 transitions. Second operand has 31 states, 31 states have (on average 2.2903225806451615) internal successors, (71), 31 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:17:03,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:17:03,867 INFO L93 Difference]: Finished difference Result 1567 states and 2285 transitions. [2024-11-18 18:17:03,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-18 18:17:03,867 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 2.2903225806451615) internal successors, (71), 31 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2024-11-18 18:17:03,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:17:03,870 INFO L225 Difference]: With dead ends: 1567 [2024-11-18 18:17:03,870 INFO L226 Difference]: Without dead ends: 820 [2024-11-18 18:17:03,872 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=64, Invalid=866, Unknown=0, NotChecked=0, Total=930 [2024-11-18 18:17:03,875 INFO L432 NwaCegarLoop]: 772 mSDtfsCounter, 9 mSDsluCounter, 20724 mSDsCounter, 0 mSdLazyCounter, 1206 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 21496 SdHoareTripleChecker+Invalid, 1206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-18 18:17:03,879 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 21496 Invalid, 1206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1206 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-18 18:17:03,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 820 states. [2024-11-18 18:17:03,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 820 to 820. [2024-11-18 18:17:03,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 820 states, 819 states have (on average 1.442002442002442) internal successors, (1181), 819 states have internal predecessors, (1181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:17:03,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 820 states to 820 states and 1181 transitions. [2024-11-18 18:17:03,892 INFO L78 Accepts]: Start accepts. Automaton has 820 states and 1181 transitions. Word has length 71 [2024-11-18 18:17:03,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:17:03,893 INFO L471 AbstractCegarLoop]: Abstraction has 820 states and 1181 transitions. [2024-11-18 18:17:03,893 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 2.2903225806451615) internal successors, (71), 31 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:17:03,893 INFO L276 IsEmpty]: Start isEmpty. Operand 820 states and 1181 transitions. [2024-11-18 18:17:03,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-18 18:17:03,894 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:17:03,894 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 18:17:03,894 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-18 18:17:03,894 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:17:03,895 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:17:03,895 INFO L85 PathProgramCache]: Analyzing trace with hash 1817004300, now seen corresponding path program 1 times [2024-11-18 18:17:03,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:17:03,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992577080] [2024-11-18 18:17:03,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:17:03,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:17:03,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:17:05,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:17:05,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:17:05,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992577080] [2024-11-18 18:17:05,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992577080] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 18:17:05,102 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 18:17:05,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2024-11-18 18:17:05,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366778105] [2024-11-18 18:17:05,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:17:05,102 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-18 18:17:05,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:17:05,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-18 18:17:05,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=700, Unknown=0, NotChecked=0, Total=756 [2024-11-18 18:17:05,103 INFO L87 Difference]: Start difference. First operand 820 states and 1181 transitions. Second operand has 28 states, 28 states have (on average 2.5357142857142856) internal successors, (71), 28 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:17:05,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:17:05,678 INFO L93 Difference]: Finished difference Result 1567 states and 2284 transitions. [2024-11-18 18:17:05,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-18 18:17:05,679 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 2.5357142857142856) internal successors, (71), 28 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2024-11-18 18:17:05,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:17:05,681 INFO L225 Difference]: With dead ends: 1567 [2024-11-18 18:17:05,681 INFO L226 Difference]: Without dead ends: 814 [2024-11-18 18:17:05,683 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=64, Invalid=806, Unknown=0, NotChecked=0, Total=870 [2024-11-18 18:17:05,683 INFO L432 NwaCegarLoop]: 778 mSDtfsCounter, 11 mSDsluCounter, 18588 mSDsCounter, 0 mSdLazyCounter, 903 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 19366 SdHoareTripleChecker+Invalid, 903 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 903 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-18 18:17:05,683 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 19366 Invalid, 903 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 903 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-18 18:17:05,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 814 states. [2024-11-18 18:17:05,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 814 to 814. [2024-11-18 18:17:05,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 814 states, 813 states have (on average 1.4440344403444034) internal successors, (1174), 813 states have internal predecessors, (1174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:17:05,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 814 states to 814 states and 1174 transitions. [2024-11-18 18:17:05,694 INFO L78 Accepts]: Start accepts. Automaton has 814 states and 1174 transitions. Word has length 71 [2024-11-18 18:17:05,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:17:05,694 INFO L471 AbstractCegarLoop]: Abstraction has 814 states and 1174 transitions. [2024-11-18 18:17:05,695 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 2.5357142857142856) internal successors, (71), 28 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:17:05,695 INFO L276 IsEmpty]: Start isEmpty. Operand 814 states and 1174 transitions. [2024-11-18 18:17:05,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2024-11-18 18:17:05,699 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:17:05,699 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 18:17:05,699 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-18 18:17:05,699 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:17:05,700 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:17:05,700 INFO L85 PathProgramCache]: Analyzing trace with hash 558374558, now seen corresponding path program 1 times [2024-11-18 18:17:05,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:17:05,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557417141] [2024-11-18 18:17:05,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:17:05,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:17:06,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:17:07,490 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-18 18:17:07,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:17:07,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557417141] [2024-11-18 18:17:07,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1557417141] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 18:17:07,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 18:17:07,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 18:17:07,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419616154] [2024-11-18 18:17:07,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:17:07,492 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 18:17:07,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:17:07,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 18:17:07,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-18 18:17:07,494 INFO L87 Difference]: Start difference. First operand 814 states and 1174 transitions. Second operand has 6 states, 6 states have (on average 56.333333333333336) internal successors, (338), 6 states have internal predecessors, (338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:17:07,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:17:07,586 INFO L93 Difference]: Finished difference Result 1575 states and 2299 transitions. [2024-11-18 18:17:07,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 18:17:07,587 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 56.333333333333336) internal successors, (338), 6 states have internal predecessors, (338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 338 [2024-11-18 18:17:07,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:17:07,589 INFO L225 Difference]: With dead ends: 1575 [2024-11-18 18:17:07,589 INFO L226 Difference]: Without dead ends: 828 [2024-11-18 18:17:07,590 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-18 18:17:07,590 INFO L432 NwaCegarLoop]: 794 mSDtfsCounter, 689 mSDsluCounter, 2466 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 689 SdHoareTripleChecker+Valid, 3260 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 18:17:07,590 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [689 Valid, 3260 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 18:17:07,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 828 states. [2024-11-18 18:17:07,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 828 to 822. [2024-11-18 18:17:07,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 822 states, 821 states have (on average 1.4397076735688186) internal successors, (1182), 821 states have internal predecessors, (1182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:17:07,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 822 states to 822 states and 1182 transitions. [2024-11-18 18:17:07,604 INFO L78 Accepts]: Start accepts. Automaton has 822 states and 1182 transitions. Word has length 338 [2024-11-18 18:17:07,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:17:07,605 INFO L471 AbstractCegarLoop]: Abstraction has 822 states and 1182 transitions. [2024-11-18 18:17:07,605 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 56.333333333333336) internal successors, (338), 6 states have internal predecessors, (338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:17:07,605 INFO L276 IsEmpty]: Start isEmpty. Operand 822 states and 1182 transitions. [2024-11-18 18:17:07,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 340 [2024-11-18 18:17:07,611 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:17:07,612 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 18:17:07,612 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-18 18:17:07,612 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:17:07,612 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:17:07,613 INFO L85 PathProgramCache]: Analyzing trace with hash -752351417, now seen corresponding path program 1 times [2024-11-18 18:17:07,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:17:07,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51887449] [2024-11-18 18:17:07,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:17:07,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:17:08,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:17:09,473 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:17:09,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:17:09,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51887449] [2024-11-18 18:17:09,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51887449] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 18:17:09,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 18:17:09,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 18:17:09,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313282599] [2024-11-18 18:17:09,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:17:09,475 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 18:17:09,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:17:09,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 18:17:09,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-18 18:17:09,476 INFO L87 Difference]: Start difference. First operand 822 states and 1182 transitions. Second operand has 6 states, 6 states have (on average 56.5) internal successors, (339), 6 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:17:09,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:17:09,546 INFO L93 Difference]: Finished difference Result 1677 states and 2443 transitions. [2024-11-18 18:17:09,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 18:17:09,547 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 56.5) internal successors, (339), 6 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 339 [2024-11-18 18:17:09,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:17:09,549 INFO L225 Difference]: With dead ends: 1677 [2024-11-18 18:17:09,549 INFO L226 Difference]: Without dead ends: 922 [2024-11-18 18:17:09,550 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-18 18:17:09,551 INFO L432 NwaCegarLoop]: 798 mSDtfsCounter, 701 mSDsluCounter, 2382 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 701 SdHoareTripleChecker+Valid, 3180 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 18:17:09,551 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [701 Valid, 3180 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 18:17:09,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 922 states. [2024-11-18 18:17:09,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 922 to 920. [2024-11-18 18:17:09,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 920 states, 919 states have (on average 1.4450489662676822) internal successors, (1328), 919 states have internal predecessors, (1328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:17:09,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 920 states to 920 states and 1328 transitions. [2024-11-18 18:17:09,565 INFO L78 Accepts]: Start accepts. Automaton has 920 states and 1328 transitions. Word has length 339 [2024-11-18 18:17:09,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:17:09,566 INFO L471 AbstractCegarLoop]: Abstraction has 920 states and 1328 transitions. [2024-11-18 18:17:09,566 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 56.5) internal successors, (339), 6 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:17:09,566 INFO L276 IsEmpty]: Start isEmpty. Operand 920 states and 1328 transitions. [2024-11-18 18:17:09,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 341 [2024-11-18 18:17:09,568 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:17:09,569 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 18:17:09,569 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-18 18:17:09,569 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:17:09,569 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:17:09,569 INFO L85 PathProgramCache]: Analyzing trace with hash 1240986311, now seen corresponding path program 1 times [2024-11-18 18:17:09,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:17:09,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800042069] [2024-11-18 18:17:09,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:17:09,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:17:10,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:17:12,474 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:17:12,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:17:12,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800042069] [2024-11-18 18:17:12,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1800042069] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 18:17:12,475 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 18:17:12,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-18 18:17:12,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360643645] [2024-11-18 18:17:12,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:17:12,476 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-18 18:17:12,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:17:12,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-18 18:17:12,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-11-18 18:17:12,478 INFO L87 Difference]: Start difference. First operand 920 states and 1328 transitions. Second operand has 11 states, 11 states have (on average 30.90909090909091) internal successors, (340), 11 states have internal predecessors, (340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:17:12,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:17:12,718 INFO L93 Difference]: Finished difference Result 2300 states and 3372 transitions. [2024-11-18 18:17:12,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-18 18:17:12,719 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 30.90909090909091) internal successors, (340), 11 states have internal predecessors, (340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 340 [2024-11-18 18:17:12,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:17:12,722 INFO L225 Difference]: With dead ends: 2300 [2024-11-18 18:17:12,722 INFO L226 Difference]: Without dead ends: 1447 [2024-11-18 18:17:12,723 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=253, Unknown=0, NotChecked=0, Total=306 [2024-11-18 18:17:12,724 INFO L432 NwaCegarLoop]: 790 mSDtfsCounter, 648 mSDsluCounter, 6184 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 648 SdHoareTripleChecker+Valid, 6974 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 18:17:12,724 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [648 Valid, 6974 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 18:17:12,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1447 states. [2024-11-18 18:17:12,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1447 to 1000. [2024-11-18 18:17:12,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1000 states, 999 states have (on average 1.4464464464464464) internal successors, (1445), 999 states have internal predecessors, (1445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:17:12,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1000 states to 1000 states and 1445 transitions. [2024-11-18 18:17:12,739 INFO L78 Accepts]: Start accepts. Automaton has 1000 states and 1445 transitions. Word has length 340 [2024-11-18 18:17:12,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:17:12,740 INFO L471 AbstractCegarLoop]: Abstraction has 1000 states and 1445 transitions. [2024-11-18 18:17:12,740 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 30.90909090909091) internal successors, (340), 11 states have internal predecessors, (340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:17:12,740 INFO L276 IsEmpty]: Start isEmpty. Operand 1000 states and 1445 transitions. [2024-11-18 18:17:12,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 342 [2024-11-18 18:17:12,742 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:17:12,743 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 18:17:12,743 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-11-18 18:17:12,743 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:17:12,743 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:17:12,744 INFO L85 PathProgramCache]: Analyzing trace with hash -1169475486, now seen corresponding path program 1 times [2024-11-18 18:17:12,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:17:12,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747628739] [2024-11-18 18:17:12,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:17:12,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:17:14,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:17:15,217 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:17:15,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:17:15,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747628739] [2024-11-18 18:17:15,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [747628739] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 18:17:15,218 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 18:17:15,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-18 18:17:15,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396443627] [2024-11-18 18:17:15,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:17:15,220 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-18 18:17:15,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:17:15,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-18 18:17:15,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-18 18:17:15,221 INFO L87 Difference]: Start difference. First operand 1000 states and 1445 transitions. Second operand has 8 states, 8 states have (on average 42.625) internal successors, (341), 8 states have internal predecessors, (341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:17:15,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:17:15,343 INFO L93 Difference]: Finished difference Result 2614 states and 3841 transitions. [2024-11-18 18:17:15,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 18:17:15,345 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 42.625) internal successors, (341), 8 states have internal predecessors, (341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 341 [2024-11-18 18:17:15,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:17:15,350 INFO L225 Difference]: With dead ends: 2614 [2024-11-18 18:17:15,350 INFO L226 Difference]: Without dead ends: 1761 [2024-11-18 18:17:15,351 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-18 18:17:15,352 INFO L432 NwaCegarLoop]: 796 mSDtfsCounter, 945 mSDsluCounter, 4451 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 945 SdHoareTripleChecker+Valid, 5247 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 18:17:15,353 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [945 Valid, 5247 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 18:17:15,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1761 states. [2024-11-18 18:17:15,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1761 to 1444. [2024-11-18 18:17:15,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1444 states, 1443 states have (on average 1.4608454608454609) internal successors, (2108), 1443 states have internal predecessors, (2108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:17:15,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1444 states to 1444 states and 2108 transitions. [2024-11-18 18:17:15,375 INFO L78 Accepts]: Start accepts. Automaton has 1444 states and 2108 transitions. Word has length 341 [2024-11-18 18:17:15,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:17:15,376 INFO L471 AbstractCegarLoop]: Abstraction has 1444 states and 2108 transitions. [2024-11-18 18:17:15,376 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 42.625) internal successors, (341), 8 states have internal predecessors, (341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:17:15,376 INFO L276 IsEmpty]: Start isEmpty. Operand 1444 states and 2108 transitions. [2024-11-18 18:17:15,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2024-11-18 18:17:15,379 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:17:15,379 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 18:17:15,379 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-11-18 18:17:15,379 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:17:15,380 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:17:15,380 INFO L85 PathProgramCache]: Analyzing trace with hash 884539073, now seen corresponding path program 1 times [2024-11-18 18:17:15,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:17:15,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049141379] [2024-11-18 18:17:15,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:17:15,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:17:16,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:17:18,156 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:17:18,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:17:18,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049141379] [2024-11-18 18:17:18,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1049141379] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 18:17:18,157 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 18:17:18,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-18 18:17:18,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310376783] [2024-11-18 18:17:18,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:17:18,158 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-18 18:17:18,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:17:18,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-18 18:17:18,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-18 18:17:18,159 INFO L87 Difference]: Start difference. First operand 1444 states and 2108 transitions. Second operand has 10 states, 10 states have (on average 34.2) internal successors, (342), 10 states have internal predecessors, (342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:17:18,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:17:18,323 INFO L93 Difference]: Finished difference Result 2518 states and 3694 transitions. [2024-11-18 18:17:18,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-18 18:17:18,324 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 34.2) internal successors, (342), 10 states have internal predecessors, (342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 342 [2024-11-18 18:17:18,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:17:18,327 INFO L225 Difference]: With dead ends: 2518 [2024-11-18 18:17:18,328 INFO L226 Difference]: Without dead ends: 1557 [2024-11-18 18:17:18,329 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2024-11-18 18:17:18,330 INFO L432 NwaCegarLoop]: 795 mSDtfsCounter, 299 mSDsluCounter, 6011 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 299 SdHoareTripleChecker+Valid, 6806 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 18:17:18,332 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [299 Valid, 6806 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 18:17:18,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1557 states. [2024-11-18 18:17:18,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1557 to 1554. [2024-11-18 18:17:18,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1554 states, 1553 states have (on average 1.4616870573084353) internal successors, (2270), 1553 states have internal predecessors, (2270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:17:18,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1554 states to 1554 states and 2270 transitions. [2024-11-18 18:17:18,357 INFO L78 Accepts]: Start accepts. Automaton has 1554 states and 2270 transitions. Word has length 342 [2024-11-18 18:17:18,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:17:18,360 INFO L471 AbstractCegarLoop]: Abstraction has 1554 states and 2270 transitions. [2024-11-18 18:17:18,361 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 34.2) internal successors, (342), 10 states have internal predecessors, (342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:17:18,361 INFO L276 IsEmpty]: Start isEmpty. Operand 1554 states and 2270 transitions. [2024-11-18 18:17:18,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2024-11-18 18:17:18,364 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:17:18,365 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 18:17:18,365 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-11-18 18:17:18,365 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:17:18,365 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:17:18,365 INFO L85 PathProgramCache]: Analyzing trace with hash 2082044912, now seen corresponding path program 1 times [2024-11-18 18:17:18,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:17:18,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743462679] [2024-11-18 18:17:18,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:17:18,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:17:18,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:17:19,490 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:17:19,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:17:19,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743462679] [2024-11-18 18:17:19,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743462679] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 18:17:19,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 18:17:19,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-18 18:17:19,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350903508] [2024-11-18 18:17:19,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:17:19,491 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-18 18:17:19,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:17:19,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-18 18:17:19,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-18 18:17:19,492 INFO L87 Difference]: Start difference. First operand 1554 states and 2270 transitions. Second operand has 9 states, 9 states have (on average 38.0) internal successors, (342), 9 states have internal predecessors, (342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:17:19,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:17:19,581 INFO L93 Difference]: Finished difference Result 2694 states and 3954 transitions. [2024-11-18 18:17:19,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 18:17:19,582 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 38.0) internal successors, (342), 9 states have internal predecessors, (342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 342 [2024-11-18 18:17:19,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:17:19,584 INFO L225 Difference]: With dead ends: 2694 [2024-11-18 18:17:19,584 INFO L226 Difference]: Without dead ends: 1614 [2024-11-18 18:17:19,585 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-18 18:17:19,586 INFO L432 NwaCegarLoop]: 800 mSDtfsCounter, 14 mSDsluCounter, 5570 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 6370 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 18:17:19,586 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 6370 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 18:17:19,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1614 states. [2024-11-18 18:17:19,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1614 to 1614. [2024-11-18 18:17:19,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1614 states, 1613 states have (on average 1.4593924364538127) internal successors, (2354), 1613 states have internal predecessors, (2354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:17:19,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1614 states to 1614 states and 2354 transitions. [2024-11-18 18:17:19,607 INFO L78 Accepts]: Start accepts. Automaton has 1614 states and 2354 transitions. Word has length 342 [2024-11-18 18:17:19,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:17:19,607 INFO L471 AbstractCegarLoop]: Abstraction has 1614 states and 2354 transitions. [2024-11-18 18:17:19,608 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 38.0) internal successors, (342), 9 states have internal predecessors, (342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:17:19,608 INFO L276 IsEmpty]: Start isEmpty. Operand 1614 states and 2354 transitions. [2024-11-18 18:17:19,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 344 [2024-11-18 18:17:19,613 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:17:19,614 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 18:17:19,614 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-11-18 18:17:19,615 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:17:19,615 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:17:19,615 INFO L85 PathProgramCache]: Analyzing trace with hash -547632465, now seen corresponding path program 1 times [2024-11-18 18:17:19,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:17:19,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209147571] [2024-11-18 18:17:19,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:17:19,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:17:20,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:17:22,239 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:17:22,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:17:22,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209147571] [2024-11-18 18:17:22,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1209147571] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 18:17:22,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 18:17:22,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-18 18:17:22,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942472026] [2024-11-18 18:17:22,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:17:22,241 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-18 18:17:22,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:17:22,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-18 18:17:22,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2024-11-18 18:17:22,242 INFO L87 Difference]: Start difference. First operand 1614 states and 2354 transitions. Second operand has 15 states, 15 states have (on average 22.866666666666667) internal successors, (343), 15 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:17:22,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:17:22,600 INFO L93 Difference]: Finished difference Result 3342 states and 4899 transitions. [2024-11-18 18:17:22,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-18 18:17:22,601 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 22.866666666666667) internal successors, (343), 15 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 343 [2024-11-18 18:17:22,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:17:22,606 INFO L225 Difference]: With dead ends: 3342 [2024-11-18 18:17:22,606 INFO L226 Difference]: Without dead ends: 2469 [2024-11-18 18:17:22,608 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=314, Unknown=0, NotChecked=0, Total=380 [2024-11-18 18:17:22,609 INFO L432 NwaCegarLoop]: 1440 mSDtfsCounter, 753 mSDsluCounter, 16628 mSDsCounter, 0 mSdLazyCounter, 412 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 753 SdHoareTripleChecker+Valid, 18068 SdHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 18:17:22,609 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [753 Valid, 18068 Invalid, 416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 412 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 18:17:22,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2469 states. [2024-11-18 18:17:22,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2469 to 1816. [2024-11-18 18:17:22,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1816 states, 1815 states have (on average 1.4539944903581268) internal successors, (2639), 1815 states have internal predecessors, (2639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:17:22,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1816 states to 1816 states and 2639 transitions. [2024-11-18 18:17:22,643 INFO L78 Accepts]: Start accepts. Automaton has 1816 states and 2639 transitions. Word has length 343 [2024-11-18 18:17:22,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:17:22,644 INFO L471 AbstractCegarLoop]: Abstraction has 1816 states and 2639 transitions. [2024-11-18 18:17:22,644 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 22.866666666666667) internal successors, (343), 15 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:17:22,645 INFO L276 IsEmpty]: Start isEmpty. Operand 1816 states and 2639 transitions. [2024-11-18 18:17:22,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 345 [2024-11-18 18:17:22,648 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:17:22,649 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 18:17:22,649 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-11-18 18:17:22,649 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:17:22,650 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:17:22,650 INFO L85 PathProgramCache]: Analyzing trace with hash -145173973, now seen corresponding path program 1 times [2024-11-18 18:17:22,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:17:22,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964080869] [2024-11-18 18:17:22,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:17:22,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:17:23,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:17:24,694 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:17:24,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:17:24,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964080869] [2024-11-18 18:17:24,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1964080869] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 18:17:24,694 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 18:17:24,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-18 18:17:24,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005545362] [2024-11-18 18:17:24,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:17:24,695 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-18 18:17:24,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:17:24,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-18 18:17:24,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-11-18 18:17:24,696 INFO L87 Difference]: Start difference. First operand 1816 states and 2639 transitions. Second operand has 11 states, 11 states have (on average 31.272727272727273) internal successors, (344), 11 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:17:24,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:17:24,959 INFO L93 Difference]: Finished difference Result 4243 states and 6188 transitions. [2024-11-18 18:17:24,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-18 18:17:24,959 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 31.272727272727273) internal successors, (344), 11 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 344 [2024-11-18 18:17:24,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:17:24,964 INFO L225 Difference]: With dead ends: 4243 [2024-11-18 18:17:24,964 INFO L226 Difference]: Without dead ends: 3168 [2024-11-18 18:17:24,965 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2024-11-18 18:17:24,966 INFO L432 NwaCegarLoop]: 1434 mSDtfsCounter, 2017 mSDsluCounter, 12260 mSDsCounter, 0 mSdLazyCounter, 369 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2017 SdHoareTripleChecker+Valid, 13694 SdHoareTripleChecker+Invalid, 369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 18:17:24,966 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2017 Valid, 13694 Invalid, 369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 369 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 18:17:24,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3168 states. [2024-11-18 18:17:24,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3168 to 1979. [2024-11-18 18:17:24,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1979 states, 1978 states have (on average 1.4474216380182001) internal successors, (2863), 1978 states have internal predecessors, (2863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:17:24,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1979 states to 1979 states and 2863 transitions. [2024-11-18 18:17:24,991 INFO L78 Accepts]: Start accepts. Automaton has 1979 states and 2863 transitions. Word has length 344 [2024-11-18 18:17:24,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:17:24,992 INFO L471 AbstractCegarLoop]: Abstraction has 1979 states and 2863 transitions. [2024-11-18 18:17:24,992 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 31.272727272727273) internal successors, (344), 11 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:17:24,992 INFO L276 IsEmpty]: Start isEmpty. Operand 1979 states and 2863 transitions. [2024-11-18 18:17:24,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 345 [2024-11-18 18:17:24,996 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:17:24,996 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 18:17:24,996 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-11-18 18:17:24,996 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:17:24,997 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:17:24,997 INFO L85 PathProgramCache]: Analyzing trace with hash 988439364, now seen corresponding path program 1 times [2024-11-18 18:17:24,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:17:24,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284236670] [2024-11-18 18:17:24,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:17:24,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:17:26,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:17:28,439 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:17:28,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:17:28,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284236670] [2024-11-18 18:17:28,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284236670] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 18:17:28,439 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 18:17:28,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-18 18:17:28,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906407213] [2024-11-18 18:17:28,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:17:28,440 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-18 18:17:28,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:17:28,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-18 18:17:28,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-18 18:17:28,441 INFO L87 Difference]: Start difference. First operand 1979 states and 2863 transitions. Second operand has 11 states, 11 states have (on average 31.272727272727273) internal successors, (344), 11 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:17:28,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:17:28,640 INFO L93 Difference]: Finished difference Result 3874 states and 5632 transitions. [2024-11-18 18:17:28,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-18 18:17:28,641 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 31.272727272727273) internal successors, (344), 11 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 344 [2024-11-18 18:17:28,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:17:28,645 INFO L225 Difference]: With dead ends: 3874 [2024-11-18 18:17:28,645 INFO L226 Difference]: Without dead ends: 2135 [2024-11-18 18:17:28,647 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2024-11-18 18:17:28,647 INFO L432 NwaCegarLoop]: 779 mSDtfsCounter, 508 mSDsluCounter, 6238 mSDsCounter, 0 mSdLazyCounter, 293 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 508 SdHoareTripleChecker+Valid, 7017 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 18:17:28,648 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [508 Valid, 7017 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 293 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 18:17:28,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2135 states. [2024-11-18 18:17:28,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2135 to 1981. [2024-11-18 18:17:28,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1981 states, 1980 states have (on average 1.446969696969697) internal successors, (2865), 1980 states have internal predecessors, (2865), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:17:28,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1981 states to 1981 states and 2865 transitions. [2024-11-18 18:17:28,674 INFO L78 Accepts]: Start accepts. Automaton has 1981 states and 2865 transitions. Word has length 344 [2024-11-18 18:17:28,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:17:28,677 INFO L471 AbstractCegarLoop]: Abstraction has 1981 states and 2865 transitions. [2024-11-18 18:17:28,677 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 31.272727272727273) internal successors, (344), 11 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:17:28,677 INFO L276 IsEmpty]: Start isEmpty. Operand 1981 states and 2865 transitions. [2024-11-18 18:17:28,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 346 [2024-11-18 18:17:28,681 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:17:28,681 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 18:17:28,681 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2024-11-18 18:17:28,681 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:17:28,682 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:17:28,682 INFO L85 PathProgramCache]: Analyzing trace with hash 867759055, now seen corresponding path program 1 times [2024-11-18 18:17:28,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:17:28,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78597565] [2024-11-18 18:17:28,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:17:28,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:17:29,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:17:30,691 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:17:30,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:17:30,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78597565] [2024-11-18 18:17:30,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78597565] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 18:17:30,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 18:17:30,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-18 18:17:30,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331000165] [2024-11-18 18:17:30,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:17:30,692 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-18 18:17:30,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:17:30,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-18 18:17:30,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2024-11-18 18:17:30,693 INFO L87 Difference]: Start difference. First operand 1981 states and 2865 transitions. Second operand has 13 states, 13 states have (on average 26.53846153846154) internal successors, (345), 13 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:17:30,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:17:30,954 INFO L93 Difference]: Finished difference Result 3673 states and 5321 transitions. [2024-11-18 18:17:30,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-18 18:17:30,955 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 26.53846153846154) internal successors, (345), 13 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 345 [2024-11-18 18:17:30,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:17:30,960 INFO L225 Difference]: With dead ends: 3673 [2024-11-18 18:17:30,960 INFO L226 Difference]: Without dead ends: 2435 [2024-11-18 18:17:30,963 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2024-11-18 18:17:30,963 INFO L432 NwaCegarLoop]: 1296 mSDtfsCounter, 558 mSDsluCounter, 12957 mSDsCounter, 0 mSdLazyCounter, 344 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 558 SdHoareTripleChecker+Valid, 14253 SdHoareTripleChecker+Invalid, 348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 18:17:30,963 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [558 Valid, 14253 Invalid, 348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 344 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 18:17:30,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2435 states. [2024-11-18 18:17:30,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2435 to 2085. [2024-11-18 18:17:30,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2085 states, 2084 states have (on average 1.442898272552783) internal successors, (3007), 2084 states have internal predecessors, (3007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:17:30,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2085 states to 2085 states and 3007 transitions. [2024-11-18 18:17:30,989 INFO L78 Accepts]: Start accepts. Automaton has 2085 states and 3007 transitions. Word has length 345 [2024-11-18 18:17:30,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:17:30,990 INFO L471 AbstractCegarLoop]: Abstraction has 2085 states and 3007 transitions. [2024-11-18 18:17:30,990 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 26.53846153846154) internal successors, (345), 13 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:17:30,990 INFO L276 IsEmpty]: Start isEmpty. Operand 2085 states and 3007 transitions. [2024-11-18 18:17:30,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 346 [2024-11-18 18:17:30,994 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:17:30,994 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 18:17:30,994 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2024-11-18 18:17:30,995 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:17:30,995 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:17:30,995 INFO L85 PathProgramCache]: Analyzing trace with hash 309153097, now seen corresponding path program 1 times [2024-11-18 18:17:30,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:17:30,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313414939] [2024-11-18 18:17:30,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:17:30,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:17:31,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:17:31,590 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:17:31,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:17:31,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313414939] [2024-11-18 18:17:31,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [313414939] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 18:17:31,590 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 18:17:31,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 18:17:31,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568492922] [2024-11-18 18:17:31,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:17:31,591 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 18:17:31,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:17:31,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 18:17:31,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 18:17:31,591 INFO L87 Difference]: Start difference. First operand 2085 states and 3007 transitions. Second operand has 5 states, 5 states have (on average 69.0) internal successors, (345), 5 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:17:31,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:17:31,622 INFO L93 Difference]: Finished difference Result 3822 states and 5532 transitions. [2024-11-18 18:17:31,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 18:17:31,623 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 345 [2024-11-18 18:17:31,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:17:31,627 INFO L225 Difference]: With dead ends: 3822 [2024-11-18 18:17:31,627 INFO L226 Difference]: Without dead ends: 2480 [2024-11-18 18:17:31,629 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 18:17:31,629 INFO L432 NwaCegarLoop]: 808 mSDtfsCounter, 118 mSDsluCounter, 2413 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 3221 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 18:17:31,629 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 3221 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 18:17:31,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2480 states. [2024-11-18 18:17:31,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2480 to 2480. [2024-11-18 18:17:31,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2480 states, 2479 states have (on average 1.4497781363453006) internal successors, (3594), 2479 states have internal predecessors, (3594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:17:31,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2480 states to 2480 states and 3594 transitions. [2024-11-18 18:17:31,654 INFO L78 Accepts]: Start accepts. Automaton has 2480 states and 3594 transitions. Word has length 345 [2024-11-18 18:17:31,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:17:31,654 INFO L471 AbstractCegarLoop]: Abstraction has 2480 states and 3594 transitions. [2024-11-18 18:17:31,655 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:17:31,655 INFO L276 IsEmpty]: Start isEmpty. Operand 2480 states and 3594 transitions. [2024-11-18 18:17:31,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 346 [2024-11-18 18:17:31,659 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:17:31,660 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 18:17:31,660 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2024-11-18 18:17:31,660 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:17:31,661 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:17:31,661 INFO L85 PathProgramCache]: Analyzing trace with hash -1008898270, now seen corresponding path program 1 times [2024-11-18 18:17:31,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:17:31,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189292761] [2024-11-18 18:17:31,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:17:31,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:17:32,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:17:34,717 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-18 18:17:34,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:17:34,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189292761] [2024-11-18 18:17:34,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [189292761] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 18:17:34,717 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 18:17:34,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-18 18:17:34,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266738980] [2024-11-18 18:17:34,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:17:34,718 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-18 18:17:34,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:17:34,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-18 18:17:34,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2024-11-18 18:17:34,719 INFO L87 Difference]: Start difference. First operand 2480 states and 3594 transitions. Second operand has 13 states, 13 states have (on average 26.53846153846154) internal successors, (345), 13 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:17:34,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:17:34,976 INFO L93 Difference]: Finished difference Result 5189 states and 7531 transitions. [2024-11-18 18:17:34,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-18 18:17:34,977 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 26.53846153846154) internal successors, (345), 13 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 345 [2024-11-18 18:17:34,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:17:34,982 INFO L225 Difference]: With dead ends: 5189 [2024-11-18 18:17:34,983 INFO L226 Difference]: Without dead ends: 3637 [2024-11-18 18:17:34,985 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2024-11-18 18:17:34,985 INFO L432 NwaCegarLoop]: 1419 mSDtfsCounter, 700 mSDsluCounter, 11630 mSDsCounter, 0 mSdLazyCounter, 417 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 700 SdHoareTripleChecker+Valid, 13049 SdHoareTripleChecker+Invalid, 421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 18:17:34,986 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [700 Valid, 13049 Invalid, 421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 417 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 18:17:34,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3637 states. [2024-11-18 18:17:35,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3637 to 2550. [2024-11-18 18:17:35,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2550 states, 2549 states have (on average 1.448018830914084) internal successors, (3691), 2549 states have internal predecessors, (3691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:17:35,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2550 states to 2550 states and 3691 transitions. [2024-11-18 18:17:35,018 INFO L78 Accepts]: Start accepts. Automaton has 2550 states and 3691 transitions. Word has length 345 [2024-11-18 18:17:35,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:17:35,019 INFO L471 AbstractCegarLoop]: Abstraction has 2550 states and 3691 transitions. [2024-11-18 18:17:35,019 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 26.53846153846154) internal successors, (345), 13 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:17:35,019 INFO L276 IsEmpty]: Start isEmpty. Operand 2550 states and 3691 transitions. [2024-11-18 18:17:35,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347 [2024-11-18 18:17:35,023 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:17:35,024 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 18:17:35,024 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2024-11-18 18:17:35,024 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:17:35,024 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:17:35,025 INFO L85 PathProgramCache]: Analyzing trace with hash -244959381, now seen corresponding path program 1 times [2024-11-18 18:17:35,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:17:35,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176556807] [2024-11-18 18:17:35,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:17:35,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:17:36,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:17:37,367 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:17:37,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:17:37,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176556807] [2024-11-18 18:17:37,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1176556807] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 18:17:37,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 18:17:37,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-18 18:17:37,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487302991] [2024-11-18 18:17:37,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:17:37,369 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-18 18:17:37,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:17:37,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-18 18:17:37,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2024-11-18 18:17:37,370 INFO L87 Difference]: Start difference. First operand 2550 states and 3691 transitions. Second operand has 16 states, 16 states have (on average 21.625) internal successors, (346), 16 states have internal predecessors, (346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:17:37,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:17:37,619 INFO L93 Difference]: Finished difference Result 4392 states and 6344 transitions. [2024-11-18 18:17:37,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-18 18:17:37,620 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 21.625) internal successors, (346), 16 states have internal predecessors, (346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 346 [2024-11-18 18:17:37,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:17:37,624 INFO L225 Difference]: With dead ends: 4392 [2024-11-18 18:17:37,624 INFO L226 Difference]: Without dead ends: 2770 [2024-11-18 18:17:37,627 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2024-11-18 18:17:37,627 INFO L432 NwaCegarLoop]: 830 mSDtfsCounter, 166 mSDsluCounter, 9862 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 10692 SdHoareTripleChecker+Invalid, 338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 18:17:37,628 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 10692 Invalid, 338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 335 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 18:17:37,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2770 states. [2024-11-18 18:17:37,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2770 to 2609. [2024-11-18 18:17:37,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2609 states, 2608 states have (on average 1.4451687116564418) internal successors, (3769), 2608 states have internal predecessors, (3769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:17:37,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2609 states to 2609 states and 3769 transitions. [2024-11-18 18:17:37,660 INFO L78 Accepts]: Start accepts. Automaton has 2609 states and 3769 transitions. Word has length 346 [2024-11-18 18:17:37,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:17:37,661 INFO L471 AbstractCegarLoop]: Abstraction has 2609 states and 3769 transitions. [2024-11-18 18:17:37,661 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 21.625) internal successors, (346), 16 states have internal predecessors, (346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:17:37,661 INFO L276 IsEmpty]: Start isEmpty. Operand 2609 states and 3769 transitions. [2024-11-18 18:17:37,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347 [2024-11-18 18:17:37,665 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:17:37,666 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 18:17:37,666 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2024-11-18 18:17:37,666 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:17:37,666 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:17:37,667 INFO L85 PathProgramCache]: Analyzing trace with hash -1559512040, now seen corresponding path program 1 times [2024-11-18 18:17:37,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:17:37,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364940382] [2024-11-18 18:17:37,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:17:37,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:17:39,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:17:39,804 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:17:39,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:17:39,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364940382] [2024-11-18 18:17:39,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [364940382] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 18:17:39,804 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 18:17:39,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-18 18:17:39,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494216176] [2024-11-18 18:17:39,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:17:39,805 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-18 18:17:39,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:17:39,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-18 18:17:39,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-18 18:17:39,806 INFO L87 Difference]: Start difference. First operand 2609 states and 3769 transitions. Second operand has 9 states, 9 states have (on average 38.44444444444444) internal successors, (346), 9 states have internal predecessors, (346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:17:39,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:17:39,914 INFO L93 Difference]: Finished difference Result 5090 states and 7379 transitions. [2024-11-18 18:17:39,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 18:17:39,915 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 38.44444444444444) internal successors, (346), 9 states have internal predecessors, (346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 346 [2024-11-18 18:17:39,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:17:39,918 INFO L225 Difference]: With dead ends: 5090 [2024-11-18 18:17:39,918 INFO L226 Difference]: Without dead ends: 2665 [2024-11-18 18:17:39,921 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2024-11-18 18:17:39,921 INFO L432 NwaCegarLoop]: 792 mSDtfsCounter, 499 mSDsluCounter, 2872 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 499 SdHoareTripleChecker+Valid, 3664 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 18:17:39,921 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [499 Valid, 3664 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 18:17:39,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2665 states. [2024-11-18 18:17:39,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2665 to 2659. [2024-11-18 18:17:39,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2659 states, 2658 states have (on average 1.4443190368698269) internal successors, (3839), 2658 states have internal predecessors, (3839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:17:39,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2659 states to 2659 states and 3839 transitions. [2024-11-18 18:17:39,947 INFO L78 Accepts]: Start accepts. Automaton has 2659 states and 3839 transitions. Word has length 346 [2024-11-18 18:17:39,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:17:39,947 INFO L471 AbstractCegarLoop]: Abstraction has 2659 states and 3839 transitions. [2024-11-18 18:17:39,948 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 38.44444444444444) internal successors, (346), 9 states have internal predecessors, (346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:17:39,948 INFO L276 IsEmpty]: Start isEmpty. Operand 2659 states and 3839 transitions. [2024-11-18 18:17:39,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2024-11-18 18:17:39,952 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:17:39,952 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 18:17:39,952 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2024-11-18 18:17:39,952 INFO L396 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:17:39,953 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:17:39,953 INFO L85 PathProgramCache]: Analyzing trace with hash -402057774, now seen corresponding path program 1 times [2024-11-18 18:17:39,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:17:39,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642015766] [2024-11-18 18:17:39,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:17:39,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms