./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w128_d32_e0.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w128_d32_e0.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 3dcfde8a71d42fe3baf4d2089c86bd7d84b36e1d1bc23ee26c9bd4a8e8f007b4 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 04:58:38,848 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 04:58:38,930 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-22 04:58:38,936 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 04:58:38,938 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 04:58:38,966 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 04:58:38,966 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 04:58:38,967 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 04:58:38,968 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 04:58:38,972 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 04:58:38,973 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 04:58:38,973 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 04:58:38,973 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 04:58:38,974 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 04:58:38,974 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 04:58:38,974 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 04:58:38,975 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 04:58:38,975 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 04:58:38,976 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 04:58:38,977 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 04:58:38,977 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 04:58:38,977 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 04:58:38,978 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 04:58:38,978 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 04:58:38,978 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 04:58:38,979 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 04:58:38,980 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 04:58:38,980 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 04:58:38,980 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 04:58:38,981 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 04:58:38,981 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 04:58:38,981 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 04:58:38,982 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 04:58:38,982 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 04:58:38,983 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 04:58:38,983 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 04:58:38,983 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 04:58:38,983 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 04:58:38,984 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 04:58:38,984 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3dcfde8a71d42fe3baf4d2089c86bd7d84b36e1d1bc23ee26c9bd4a8e8f007b4 [2024-11-22 04:58:39,228 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 04:58:39,253 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 04:58:39,256 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 04:58:39,257 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 04:58:39,258 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 04:58:39,259 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w128_d32_e0.c [2024-11-22 04:58:40,690 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 04:58:40,986 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 04:58:40,987 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w128_d32_e0.c [2024-11-22 04:58:41,012 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8861f9b59/c44fc1d719e34edc9f05082634d06c50/FLAG49b29353a [2024-11-22 04:58:41,280 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8861f9b59/c44fc1d719e34edc9f05082634d06c50 [2024-11-22 04:58:41,282 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 04:58:41,284 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 04:58:41,285 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 04:58:41,286 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 04:58:41,291 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 04:58:41,292 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 04:58:41" (1/1) ... [2024-11-22 04:58:41,293 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76c6470e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:58:41, skipping insertion in model container [2024-11-22 04:58:41,293 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 04:58:41" (1/1) ... [2024-11-22 04:58:41,350 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 04:58:41,563 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w128_d32_e0.c[1335,1348] [2024-11-22 04:58:41,940 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 04:58:41,951 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 04:58:41,960 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w128_d32_e0.c[1335,1348] [2024-11-22 04:58:42,116 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 04:58:42,132 INFO L204 MainTranslator]: Completed translation [2024-11-22 04:58:42,133 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:58:42 WrapperNode [2024-11-22 04:58:42,133 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 04:58:42,134 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 04:58:42,134 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 04:58:42,134 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 04:58:42,143 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:58:42" (1/1) ... [2024-11-22 04:58:42,199 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:58:42" (1/1) ... [2024-11-22 04:58:42,443 INFO L138 Inliner]: procedures = 18, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 3163 [2024-11-22 04:58:42,443 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 04:58:42,444 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 04:58:42,445 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 04:58:42,445 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 04:58:42,456 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:58:42" (1/1) ... [2024-11-22 04:58:42,456 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:58:42" (1/1) ... [2024-11-22 04:58:42,637 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:58:42" (1/1) ... [2024-11-22 04:58:42,809 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]. [2024-11-22 04:58:42,810 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:58:42" (1/1) ... [2024-11-22 04:58:42,810 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:58:42" (1/1) ... [2024-11-22 04:58:42,891 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:58:42" (1/1) ... [2024-11-22 04:58:43,016 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:58:42" (1/1) ... [2024-11-22 04:58:43,073 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:58:42" (1/1) ... [2024-11-22 04:58:43,098 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:58:42" (1/1) ... [2024-11-22 04:58:43,137 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 04:58:43,138 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 04:58:43,138 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 04:58:43,138 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 04:58:43,139 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:58:42" (1/1) ... [2024-11-22 04:58:43,144 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 04:58:43,158 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 04:58:43,176 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) [2024-11-22 04:58:43,182 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 [2024-11-22 04:58:43,228 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 04:58:43,228 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-22 04:58:43,229 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-22 04:58:43,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 04:58:43,229 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 04:58:43,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 04:58:43,512 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 04:58:43,516 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 04:58:46,959 INFO L? ?]: Removed 1764 outVars from TransFormulas that were not future-live. [2024-11-22 04:58:46,959 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 04:58:47,001 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 04:58:47,002 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-22 04:58:47,003 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 04:58:47 BoogieIcfgContainer [2024-11-22 04:58:47,003 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 04:58:47,005 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 04:58:47,006 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 04:58:47,009 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 04:58:47,010 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 04:58:41" (1/3) ... [2024-11-22 04:58:47,010 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3eb28c17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 04:58:47, skipping insertion in model container [2024-11-22 04:58:47,010 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:58:42" (2/3) ... [2024-11-22 04:58:47,011 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3eb28c17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 04:58:47, skipping insertion in model container [2024-11-22 04:58:47,011 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 04:58:47" (3/3) ... [2024-11-22 04:58:47,012 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.circular_pointer_top_w128_d32_e0.c [2024-11-22 04:58:47,029 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 04:58:47,030 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-22 04:58:47,122 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 04:58:47,132 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;@17c3441c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 04:58:47,133 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-22 04:58:47,142 INFO L276 IsEmpty]: Start isEmpty. Operand has 872 states, 866 states have (on average 1.4965357967667436) internal successors, (1296), 867 states have internal predecessors, (1296), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-22 04:58:47,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2024-11-22 04:58:47,172 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:58:47,173 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:58:47,174 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:58:47,179 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:58:47,180 INFO L85 PathProgramCache]: Analyzing trace with hash -2012975456, now seen corresponding path program 1 times [2024-11-22 04:58:47,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:58:47,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248746624] [2024-11-22 04:58:47,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:58:47,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:58:47,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:58:47,848 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-22 04:58:47,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:58:47,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248746624] [2024-11-22 04:58:47,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248746624] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 04:58:47,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [305044343] [2024-11-22 04:58:47,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:58:47,851 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 04:58:47,853 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 04:58:47,856 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 04:58:47,857 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-22 04:58:48,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:58:48,598 INFO L255 TraceCheckSpWp]: Trace formula consists of 1413 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-22 04:58:48,612 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 04:58:48,659 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-22 04:58:48,662 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 04:58:48,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [305044343] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:58:48,664 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 04:58:48,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-22 04:58:48,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112150726] [2024-11-22 04:58:48,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:58:48,672 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-22 04:58:48,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:58:48,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-22 04:58:48,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 04:58:48,705 INFO L87 Difference]: Start difference. First operand has 872 states, 866 states have (on average 1.4965357967667436) internal successors, (1296), 867 states have internal predecessors, (1296), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 2 states have (on average 101.5) internal successors, (203), 2 states have internal predecessors, (203), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-22 04:58:48,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:58:48,805 INFO L93 Difference]: Finished difference Result 1575 states and 2357 transitions. [2024-11-22 04:58:48,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-22 04:58:48,808 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 101.5) internal successors, (203), 2 states have internal predecessors, (203), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 213 [2024-11-22 04:58:48,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:58:48,827 INFO L225 Difference]: With dead ends: 1575 [2024-11-22 04:58:48,827 INFO L226 Difference]: Without dead ends: 869 [2024-11-22 04:58:48,832 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 214 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 04:58:48,835 INFO L432 NwaCegarLoop]: 1297 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1297 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 04:58:48,836 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1297 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 04:58:48,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 869 states. [2024-11-22 04:58:48,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 869 to 869. [2024-11-22 04:58:48,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 869 states, 864 states have (on average 1.494212962962963) internal successors, (1291), 864 states have internal predecessors, (1291), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-22 04:58:48,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 869 states to 869 states and 1297 transitions. [2024-11-22 04:58:48,931 INFO L78 Accepts]: Start accepts. Automaton has 869 states and 1297 transitions. Word has length 213 [2024-11-22 04:58:48,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:58:48,932 INFO L471 AbstractCegarLoop]: Abstraction has 869 states and 1297 transitions. [2024-11-22 04:58:48,932 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 101.5) internal successors, (203), 2 states have internal predecessors, (203), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-22 04:58:48,932 INFO L276 IsEmpty]: Start isEmpty. Operand 869 states and 1297 transitions. [2024-11-22 04:58:48,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2024-11-22 04:58:48,939 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:58:48,939 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:58:48,949 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-22 04:58:49,141 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-22 04:58:49,142 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:58:49,142 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:58:49,142 INFO L85 PathProgramCache]: Analyzing trace with hash -1052899878, now seen corresponding path program 1 times [2024-11-22 04:58:49,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:58:49,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707436473] [2024-11-22 04:58:49,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:58:49,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:58:49,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:58:50,610 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-22 04:58:50,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:58:50,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707436473] [2024-11-22 04:58:50,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707436473] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:58:50,611 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:58:50,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 04:58:50,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322863679] [2024-11-22 04:58:50,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:58:50,613 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 04:58:50,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:58:50,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 04:58:50,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 04:58:50,616 INFO L87 Difference]: Start difference. First operand 869 states and 1297 transitions. Second operand has 4 states, 4 states have (on average 50.25) internal successors, (201), 4 states have internal predecessors, (201), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:58:50,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:58:50,670 INFO L93 Difference]: Finished difference Result 873 states and 1301 transitions. [2024-11-22 04:58:50,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 04:58:50,671 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 50.25) internal successors, (201), 4 states have internal predecessors, (201), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 213 [2024-11-22 04:58:50,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:58:50,679 INFO L225 Difference]: With dead ends: 873 [2024-11-22 04:58:50,679 INFO L226 Difference]: Without dead ends: 871 [2024-11-22 04:58:50,680 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 [2024-11-22 04:58:50,681 INFO L432 NwaCegarLoop]: 1295 mSDtfsCounter, 0 mSDsluCounter, 2584 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3879 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 [2024-11-22 04:58:50,682 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3879 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 04:58:50,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 871 states. [2024-11-22 04:58:50,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 871 to 871. [2024-11-22 04:58:50,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 871 states, 866 states have (on average 1.4930715935334873) internal successors, (1293), 866 states have internal predecessors, (1293), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-22 04:58:50,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 871 states to 871 states and 1299 transitions. [2024-11-22 04:58:50,710 INFO L78 Accepts]: Start accepts. Automaton has 871 states and 1299 transitions. Word has length 213 [2024-11-22 04:58:50,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:58:50,712 INFO L471 AbstractCegarLoop]: Abstraction has 871 states and 1299 transitions. [2024-11-22 04:58:50,712 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 50.25) internal successors, (201), 4 states have internal predecessors, (201), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:58:50,713 INFO L276 IsEmpty]: Start isEmpty. Operand 871 states and 1299 transitions. [2024-11-22 04:58:50,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2024-11-22 04:58:50,716 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:58:50,716 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:58:50,717 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 04:58:50,717 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:58:50,717 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:58:50,718 INFO L85 PathProgramCache]: Analyzing trace with hash 1721538544, now seen corresponding path program 1 times [2024-11-22 04:58:50,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:58:50,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533952430] [2024-11-22 04:58:50,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:58:50,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:58:50,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:58:51,503 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-22 04:58:51,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:58:51,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533952430] [2024-11-22 04:58:51,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533952430] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:58:51,505 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:58:51,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 04:58:51,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639882688] [2024-11-22 04:58:51,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:58:51,506 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 04:58:51,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:58:51,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 04:58:51,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:58:51,508 INFO L87 Difference]: Start difference. First operand 871 states and 1299 transitions. Second operand has 5 states, 5 states have (on average 40.4) internal successors, (202), 5 states have internal predecessors, (202), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:58:52,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:58:52,110 INFO L93 Difference]: Finished difference Result 2171 states and 3241 transitions. [2024-11-22 04:58:52,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 04:58:52,112 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 40.4) internal successors, (202), 5 states have internal predecessors, (202), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 214 [2024-11-22 04:58:52,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:58:52,117 INFO L225 Difference]: With dead ends: 2171 [2024-11-22 04:58:52,121 INFO L226 Difference]: Without dead ends: 871 [2024-11-22 04:58:52,123 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-22 04:58:52,125 INFO L432 NwaCegarLoop]: 1325 mSDtfsCounter, 2674 mSDsluCounter, 2354 mSDsCounter, 0 mSdLazyCounter, 414 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2674 SdHoareTripleChecker+Valid, 3679 SdHoareTripleChecker+Invalid, 467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 414 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-22 04:58:52,126 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2674 Valid, 3679 Invalid, 467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 414 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-22 04:58:52,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 871 states. [2024-11-22 04:58:52,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 871 to 871. [2024-11-22 04:58:52,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 871 states, 866 states have (on average 1.491916859122402) internal successors, (1292), 866 states have internal predecessors, (1292), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-22 04:58:52,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 871 states to 871 states and 1298 transitions. [2024-11-22 04:58:52,148 INFO L78 Accepts]: Start accepts. Automaton has 871 states and 1298 transitions. Word has length 214 [2024-11-22 04:58:52,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:58:52,149 INFO L471 AbstractCegarLoop]: Abstraction has 871 states and 1298 transitions. [2024-11-22 04:58:52,149 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 40.4) internal successors, (202), 5 states have internal predecessors, (202), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:58:52,150 INFO L276 IsEmpty]: Start isEmpty. Operand 871 states and 1298 transitions. [2024-11-22 04:58:52,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2024-11-22 04:58:52,153 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:58:52,153 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:58:52,154 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 04:58:52,154 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:58:52,155 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:58:52,155 INFO L85 PathProgramCache]: Analyzing trace with hash -1022974164, now seen corresponding path program 1 times [2024-11-22 04:58:52,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:58:52,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715486556] [2024-11-22 04:58:52,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:58:52,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:58:52,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:58:52,879 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-22 04:58:52,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:58:52,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715486556] [2024-11-22 04:58:52,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1715486556] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:58:52,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:58:52,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 04:58:52,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222790156] [2024-11-22 04:58:52,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:58:52,883 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 04:58:52,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:58:52,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 04:58:52,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 04:58:52,884 INFO L87 Difference]: Start difference. First operand 871 states and 1298 transitions. Second operand has 4 states, 4 states have (on average 50.75) internal successors, (203), 4 states have internal predecessors, (203), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:58:52,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:58:52,937 INFO L93 Difference]: Finished difference Result 1578 states and 2351 transitions. [2024-11-22 04:58:52,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 04:58:52,939 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 50.75) internal successors, (203), 4 states have internal predecessors, (203), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 215 [2024-11-22 04:58:52,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:58:52,943 INFO L225 Difference]: With dead ends: 1578 [2024-11-22 04:58:52,943 INFO L226 Difference]: Without dead ends: 873 [2024-11-22 04:58:52,945 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 [2024-11-22 04:58:52,946 INFO L432 NwaCegarLoop]: 1294 mSDtfsCounter, 0 mSDsluCounter, 2578 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3872 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 [2024-11-22 04:58:52,947 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3872 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 04:58:52,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 873 states. [2024-11-22 04:58:52,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 873 to 873. [2024-11-22 04:58:52,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 873 states, 868 states have (on average 1.4907834101382489) internal successors, (1294), 868 states have internal predecessors, (1294), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-22 04:58:52,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 873 states to 873 states and 1300 transitions. [2024-11-22 04:58:52,967 INFO L78 Accepts]: Start accepts. Automaton has 873 states and 1300 transitions. Word has length 215 [2024-11-22 04:58:52,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:58:52,968 INFO L471 AbstractCegarLoop]: Abstraction has 873 states and 1300 transitions. [2024-11-22 04:58:52,968 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 50.75) internal successors, (203), 4 states have internal predecessors, (203), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:58:52,969 INFO L276 IsEmpty]: Start isEmpty. Operand 873 states and 1300 transitions. [2024-11-22 04:58:52,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2024-11-22 04:58:52,971 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:58:52,971 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:58:52,971 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 04:58:52,973 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:58:52,973 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:58:52,973 INFO L85 PathProgramCache]: Analyzing trace with hash 1549574583, now seen corresponding path program 1 times [2024-11-22 04:58:52,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:58:52,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068299387] [2024-11-22 04:58:52,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:58:52,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:58:53,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:58:54,017 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-22 04:58:54,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:58:54,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068299387] [2024-11-22 04:58:54,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068299387] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:58:54,019 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:58:54,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 04:58:54,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136067340] [2024-11-22 04:58:54,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:58:54,022 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 04:58:54,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:58:54,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 04:58:54,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 04:58:54,024 INFO L87 Difference]: Start difference. First operand 873 states and 1300 transitions. Second operand has 4 states, 4 states have (on average 51.0) internal successors, (204), 4 states have internal predecessors, (204), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:58:54,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:58:54,376 INFO L93 Difference]: Finished difference Result 1580 states and 2352 transitions. [2024-11-22 04:58:54,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 04:58:54,376 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 51.0) internal successors, (204), 4 states have internal predecessors, (204), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 216 [2024-11-22 04:58:54,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:58:54,380 INFO L225 Difference]: With dead ends: 1580 [2024-11-22 04:58:54,380 INFO L226 Difference]: Without dead ends: 873 [2024-11-22 04:58:54,382 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:58:54,383 INFO L432 NwaCegarLoop]: 1134 mSDtfsCounter, 1130 mSDsluCounter, 1136 mSDsCounter, 0 mSdLazyCounter, 324 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1130 SdHoareTripleChecker+Valid, 2270 SdHoareTripleChecker+Invalid, 324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 04:58:54,383 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1130 Valid, 2270 Invalid, 324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 324 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 04:58:54,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 873 states. [2024-11-22 04:58:54,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 873 to 873. [2024-11-22 04:58:54,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 873 states, 868 states have (on average 1.48963133640553) internal successors, (1293), 868 states have internal predecessors, (1293), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-22 04:58:54,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 873 states to 873 states and 1299 transitions. [2024-11-22 04:58:54,404 INFO L78 Accepts]: Start accepts. Automaton has 873 states and 1299 transitions. Word has length 216 [2024-11-22 04:58:54,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:58:54,405 INFO L471 AbstractCegarLoop]: Abstraction has 873 states and 1299 transitions. [2024-11-22 04:58:54,405 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 51.0) internal successors, (204), 4 states have internal predecessors, (204), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:58:54,406 INFO L276 IsEmpty]: Start isEmpty. Operand 873 states and 1299 transitions. [2024-11-22 04:58:54,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2024-11-22 04:58:54,408 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:58:54,409 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:58:54,409 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 04:58:54,409 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:58:54,409 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:58:54,410 INFO L85 PathProgramCache]: Analyzing trace with hash -1888168061, now seen corresponding path program 1 times [2024-11-22 04:58:54,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:58:54,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033991202] [2024-11-22 04:58:54,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:58:54,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:58:54,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:58:55,042 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-22 04:58:55,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:58:55,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033991202] [2024-11-22 04:58:55,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1033991202] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:58:55,043 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:58:55,043 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 04:58:55,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594487369] [2024-11-22 04:58:55,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:58:55,044 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 04:58:55,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:58:55,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 04:58:55,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:58:55,045 INFO L87 Difference]: Start difference. First operand 873 states and 1299 transitions. Second operand has 5 states, 5 states have (on average 41.0) internal successors, (205), 5 states have internal predecessors, (205), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:58:55,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:58:55,307 INFO L93 Difference]: Finished difference Result 1582 states and 2352 transitions. [2024-11-22 04:58:55,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 04:58:55,310 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 41.0) internal successors, (205), 5 states have internal predecessors, (205), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 217 [2024-11-22 04:58:55,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:58:55,315 INFO L225 Difference]: With dead ends: 1582 [2024-11-22 04:58:55,315 INFO L226 Difference]: Without dead ends: 873 [2024-11-22 04:58:55,316 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-22 04:58:55,317 INFO L432 NwaCegarLoop]: 1288 mSDtfsCounter, 1133 mSDsluCounter, 2426 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1133 SdHoareTripleChecker+Valid, 3714 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 04:58:55,317 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1133 Valid, 3714 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 04:58:55,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 873 states. [2024-11-22 04:58:55,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 873 to 873. [2024-11-22 04:58:55,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 873 states, 868 states have (on average 1.4884792626728112) internal successors, (1292), 868 states have internal predecessors, (1292), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-22 04:58:55,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 873 states to 873 states and 1298 transitions. [2024-11-22 04:58:55,340 INFO L78 Accepts]: Start accepts. Automaton has 873 states and 1298 transitions. Word has length 217 [2024-11-22 04:58:55,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:58:55,341 INFO L471 AbstractCegarLoop]: Abstraction has 873 states and 1298 transitions. [2024-11-22 04:58:55,341 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 41.0) internal successors, (205), 5 states have internal predecessors, (205), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:58:55,341 INFO L276 IsEmpty]: Start isEmpty. Operand 873 states and 1298 transitions. [2024-11-22 04:58:55,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2024-11-22 04:58:55,344 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:58:55,344 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:58:55,344 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 04:58:55,344 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:58:55,345 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:58:55,345 INFO L85 PathProgramCache]: Analyzing trace with hash -464948912, now seen corresponding path program 1 times [2024-11-22 04:58:55,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:58:55,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123708018] [2024-11-22 04:58:55,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:58:55,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:58:55,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:58:55,924 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-22 04:58:55,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:58:55,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123708018] [2024-11-22 04:58:55,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123708018] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:58:55,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:58:55,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 04:58:55,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011413762] [2024-11-22 04:58:55,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:58:55,927 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 04:58:55,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:58:55,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 04:58:55,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:58:55,929 INFO L87 Difference]: Start difference. First operand 873 states and 1298 transitions. Second operand has 5 states, 5 states have (on average 41.2) internal successors, (206), 5 states have internal predecessors, (206), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:58:56,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:58:56,263 INFO L93 Difference]: Finished difference Result 1580 states and 2348 transitions. [2024-11-22 04:58:56,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 04:58:56,264 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 41.2) internal successors, (206), 5 states have internal predecessors, (206), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 218 [2024-11-22 04:58:56,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:58:56,267 INFO L225 Difference]: With dead ends: 1580 [2024-11-22 04:58:56,267 INFO L226 Difference]: Without dead ends: 873 [2024-11-22 04:58:56,269 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:58:56,269 INFO L432 NwaCegarLoop]: 1134 mSDtfsCounter, 2401 mSDsluCounter, 1136 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2404 SdHoareTripleChecker+Valid, 2270 SdHoareTripleChecker+Invalid, 321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 04:58:56,270 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2404 Valid, 2270 Invalid, 321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 320 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 04:58:56,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 873 states. [2024-11-22 04:58:56,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 873 to 873. [2024-11-22 04:58:56,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 873 states, 868 states have (on average 1.487327188940092) internal successors, (1291), 868 states have internal predecessors, (1291), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-22 04:58:56,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 873 states to 873 states and 1297 transitions. [2024-11-22 04:58:56,289 INFO L78 Accepts]: Start accepts. Automaton has 873 states and 1297 transitions. Word has length 218 [2024-11-22 04:58:56,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:58:56,289 INFO L471 AbstractCegarLoop]: Abstraction has 873 states and 1297 transitions. [2024-11-22 04:58:56,290 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 41.2) internal successors, (206), 5 states have internal predecessors, (206), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:58:56,290 INFO L276 IsEmpty]: Start isEmpty. Operand 873 states and 1297 transitions. [2024-11-22 04:58:56,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2024-11-22 04:58:56,292 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:58:56,292 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:58:56,292 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 04:58:56,292 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:58:56,293 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:58:56,293 INFO L85 PathProgramCache]: Analyzing trace with hash -766528893, now seen corresponding path program 1 times [2024-11-22 04:58:56,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:58:56,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237802071] [2024-11-22 04:58:56,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:58:56,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:58:56,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:58:56,837 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-22 04:58:56,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:58:56,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237802071] [2024-11-22 04:58:56,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237802071] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:58:56,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:58:56,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 04:58:56,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905604795] [2024-11-22 04:58:56,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:58:56,839 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 04:58:56,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:58:56,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 04:58:56,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:58:56,840 INFO L87 Difference]: Start difference. First operand 873 states and 1297 transitions. Second operand has 5 states, 5 states have (on average 41.4) internal successors, (207), 5 states have internal predecessors, (207), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:58:57,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:58:57,143 INFO L93 Difference]: Finished difference Result 1580 states and 2346 transitions. [2024-11-22 04:58:57,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 04:58:57,144 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 41.4) internal successors, (207), 5 states have internal predecessors, (207), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 219 [2024-11-22 04:58:57,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:58:57,147 INFO L225 Difference]: With dead ends: 1580 [2024-11-22 04:58:57,148 INFO L226 Difference]: Without dead ends: 873 [2024-11-22 04:58:57,149 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:58:57,149 INFO L432 NwaCegarLoop]: 1134 mSDtfsCounter, 2393 mSDsluCounter, 1136 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2396 SdHoareTripleChecker+Valid, 2270 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 04:58:57,150 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2396 Valid, 2270 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 318 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 04:58:57,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 873 states. [2024-11-22 04:58:57,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 873 to 873. [2024-11-22 04:58:57,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 873 states, 868 states have (on average 1.4861751152073732) internal successors, (1290), 868 states have internal predecessors, (1290), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-22 04:58:57,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 873 states to 873 states and 1296 transitions. [2024-11-22 04:58:57,168 INFO L78 Accepts]: Start accepts. Automaton has 873 states and 1296 transitions. Word has length 219 [2024-11-22 04:58:57,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:58:57,168 INFO L471 AbstractCegarLoop]: Abstraction has 873 states and 1296 transitions. [2024-11-22 04:58:57,168 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 41.4) internal successors, (207), 5 states have internal predecessors, (207), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:58:57,169 INFO L276 IsEmpty]: Start isEmpty. Operand 873 states and 1296 transitions. [2024-11-22 04:58:57,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2024-11-22 04:58:57,171 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:58:57,171 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:58:57,171 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 04:58:57,171 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:58:57,172 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:58:57,172 INFO L85 PathProgramCache]: Analyzing trace with hash 319347049, now seen corresponding path program 1 times [2024-11-22 04:58:57,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:58:57,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352498478] [2024-11-22 04:58:57,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:58:57,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:58:57,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:58:57,721 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-22 04:58:57,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:58:57,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352498478] [2024-11-22 04:58:57,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352498478] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:58:57,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:58:57,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 04:58:57,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927617901] [2024-11-22 04:58:57,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:58:57,723 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 04:58:57,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:58:57,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 04:58:57,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:58:57,727 INFO L87 Difference]: Start difference. First operand 873 states and 1296 transitions. Second operand has 5 states, 5 states have (on average 41.6) internal successors, (208), 5 states have internal predecessors, (208), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:58:58,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:58:58,031 INFO L93 Difference]: Finished difference Result 1580 states and 2344 transitions. [2024-11-22 04:58:58,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 04:58:58,032 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 41.6) internal successors, (208), 5 states have internal predecessors, (208), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 220 [2024-11-22 04:58:58,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:58:58,036 INFO L225 Difference]: With dead ends: 1580 [2024-11-22 04:58:58,037 INFO L226 Difference]: Without dead ends: 873 [2024-11-22 04:58:58,038 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:58:58,038 INFO L432 NwaCegarLoop]: 1134 mSDtfsCounter, 2385 mSDsluCounter, 1136 mSDsCounter, 0 mSdLazyCounter, 316 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2388 SdHoareTripleChecker+Valid, 2270 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 04:58:58,039 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2388 Valid, 2270 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 316 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 04:58:58,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 873 states. [2024-11-22 04:58:58,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 873 to 873. [2024-11-22 04:58:58,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 873 states, 868 states have (on average 1.4850230414746544) internal successors, (1289), 868 states have internal predecessors, (1289), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-22 04:58:58,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 873 states to 873 states and 1295 transitions. [2024-11-22 04:58:58,062 INFO L78 Accepts]: Start accepts. Automaton has 873 states and 1295 transitions. Word has length 220 [2024-11-22 04:58:58,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:58:58,062 INFO L471 AbstractCegarLoop]: Abstraction has 873 states and 1295 transitions. [2024-11-22 04:58:58,062 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 41.6) internal successors, (208), 5 states have internal predecessors, (208), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:58:58,063 INFO L276 IsEmpty]: Start isEmpty. Operand 873 states and 1295 transitions. [2024-11-22 04:58:58,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2024-11-22 04:58:58,065 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:58:58,065 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:58:58,065 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 04:58:58,066 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:58:58,066 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:58:58,066 INFO L85 PathProgramCache]: Analyzing trace with hash -443356356, now seen corresponding path program 1 times [2024-11-22 04:58:58,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:58:58,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573173658] [2024-11-22 04:58:58,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:58:58,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:58:58,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:58:58,620 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-22 04:58:58,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:58:58,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573173658] [2024-11-22 04:58:58,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573173658] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:58:58,621 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:58:58,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 04:58:58,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119829763] [2024-11-22 04:58:58,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:58:58,622 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 04:58:58,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:58:58,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 04:58:58,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:58:58,623 INFO L87 Difference]: Start difference. First operand 873 states and 1295 transitions. Second operand has 5 states, 5 states have (on average 41.8) internal successors, (209), 5 states have internal predecessors, (209), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:58:58,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:58:58,941 INFO L93 Difference]: Finished difference Result 1580 states and 2342 transitions. [2024-11-22 04:58:58,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 04:58:58,942 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 41.8) internal successors, (209), 5 states have internal predecessors, (209), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 221 [2024-11-22 04:58:58,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:58:58,946 INFO L225 Difference]: With dead ends: 1580 [2024-11-22 04:58:58,946 INFO L226 Difference]: Without dead ends: 873 [2024-11-22 04:58:58,947 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:58:58,947 INFO L432 NwaCegarLoop]: 1134 mSDtfsCounter, 1267 mSDsluCounter, 1143 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1270 SdHoareTripleChecker+Valid, 2277 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 04:58:58,949 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1270 Valid, 2277 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 314 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 04:58:58,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 873 states. [2024-11-22 04:58:58,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 873 to 873. [2024-11-22 04:58:58,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 873 states, 868 states have (on average 1.4838709677419355) internal successors, (1288), 868 states have internal predecessors, (1288), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-22 04:58:58,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 873 states to 873 states and 1294 transitions. [2024-11-22 04:58:58,968 INFO L78 Accepts]: Start accepts. Automaton has 873 states and 1294 transitions. Word has length 221 [2024-11-22 04:58:58,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:58:58,970 INFO L471 AbstractCegarLoop]: Abstraction has 873 states and 1294 transitions. [2024-11-22 04:58:58,971 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 41.8) internal successors, (209), 5 states have internal predecessors, (209), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:58:58,971 INFO L276 IsEmpty]: Start isEmpty. Operand 873 states and 1294 transitions. [2024-11-22 04:58:59,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2024-11-22 04:58:59,011 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:58:59,011 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:58:59,011 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-22 04:58:59,011 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:58:59,012 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:58:59,012 INFO L85 PathProgramCache]: Analyzing trace with hash -1240327678, now seen corresponding path program 1 times [2024-11-22 04:58:59,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:58:59,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277222277] [2024-11-22 04:58:59,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:58:59,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:58:59,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:58:59,559 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-22 04:58:59,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:58:59,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277222277] [2024-11-22 04:58:59,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [277222277] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:58:59,560 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:58:59,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 04:58:59,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854070966] [2024-11-22 04:58:59,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:58:59,561 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 04:58:59,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:58:59,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 04:58:59,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:58:59,562 INFO L87 Difference]: Start difference. First operand 873 states and 1294 transitions. Second operand has 5 states, 5 states have (on average 42.0) internal successors, (210), 5 states have internal predecessors, (210), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:58:59,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:58:59,863 INFO L93 Difference]: Finished difference Result 1580 states and 2340 transitions. [2024-11-22 04:58:59,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 04:58:59,864 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 42.0) internal successors, (210), 5 states have internal predecessors, (210), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 222 [2024-11-22 04:58:59,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:58:59,868 INFO L225 Difference]: With dead ends: 1580 [2024-11-22 04:58:59,868 INFO L226 Difference]: Without dead ends: 873 [2024-11-22 04:58:59,869 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:58:59,870 INFO L432 NwaCegarLoop]: 1134 mSDtfsCounter, 1263 mSDsluCounter, 1143 mSDsCounter, 0 mSdLazyCounter, 312 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1266 SdHoareTripleChecker+Valid, 2277 SdHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 04:58:59,870 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1266 Valid, 2277 Invalid, 313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 312 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 04:58:59,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 873 states. [2024-11-22 04:58:59,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 873 to 873. [2024-11-22 04:58:59,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 873 states, 868 states have (on average 1.4827188940092166) internal successors, (1287), 868 states have internal predecessors, (1287), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-22 04:58:59,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 873 states to 873 states and 1293 transitions. [2024-11-22 04:58:59,890 INFO L78 Accepts]: Start accepts. Automaton has 873 states and 1293 transitions. Word has length 222 [2024-11-22 04:58:59,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:58:59,890 INFO L471 AbstractCegarLoop]: Abstraction has 873 states and 1293 transitions. [2024-11-22 04:58:59,891 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 42.0) internal successors, (210), 5 states have internal predecessors, (210), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:58:59,891 INFO L276 IsEmpty]: Start isEmpty. Operand 873 states and 1293 transitions. [2024-11-22 04:58:59,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2024-11-22 04:58:59,893 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:58:59,893 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:58:59,894 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-22 04:58:59,894 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:58:59,894 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:58:59,894 INFO L85 PathProgramCache]: Analyzing trace with hash 2005795957, now seen corresponding path program 1 times [2024-11-22 04:58:59,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:58:59,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403994021] [2024-11-22 04:58:59,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:58:59,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:59:00,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:59:00,396 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-22 04:59:00,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:59:00,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403994021] [2024-11-22 04:59:00,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403994021] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:59:00,397 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:59:00,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 04:59:00,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742585492] [2024-11-22 04:59:00,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:59:00,399 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 04:59:00,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:59:00,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 04:59:00,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:59:00,401 INFO L87 Difference]: Start difference. First operand 873 states and 1293 transitions. Second operand has 5 states, 5 states have (on average 42.2) internal successors, (211), 5 states have internal predecessors, (211), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:59:00,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:59:00,767 INFO L93 Difference]: Finished difference Result 1580 states and 2338 transitions. [2024-11-22 04:59:00,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 04:59:00,768 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 42.2) internal successors, (211), 5 states have internal predecessors, (211), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 223 [2024-11-22 04:59:00,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:59:00,772 INFO L225 Difference]: With dead ends: 1580 [2024-11-22 04:59:00,772 INFO L226 Difference]: Without dead ends: 873 [2024-11-22 04:59:00,773 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:59:00,774 INFO L432 NwaCegarLoop]: 1134 mSDtfsCounter, 2361 mSDsluCounter, 1136 mSDsCounter, 0 mSdLazyCounter, 310 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2364 SdHoareTripleChecker+Valid, 2270 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 04:59:00,774 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2364 Valid, 2270 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 310 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 04:59:00,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 873 states. [2024-11-22 04:59:00,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 873 to 873. [2024-11-22 04:59:00,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 873 states, 868 states have (on average 1.4815668202764978) internal successors, (1286), 868 states have internal predecessors, (1286), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-22 04:59:00,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 873 states to 873 states and 1292 transitions. [2024-11-22 04:59:00,798 INFO L78 Accepts]: Start accepts. Automaton has 873 states and 1292 transitions. Word has length 223 [2024-11-22 04:59:00,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:59:00,799 INFO L471 AbstractCegarLoop]: Abstraction has 873 states and 1292 transitions. [2024-11-22 04:59:00,799 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 42.2) internal successors, (211), 5 states have internal predecessors, (211), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:59:00,799 INFO L276 IsEmpty]: Start isEmpty. Operand 873 states and 1292 transitions. [2024-11-22 04:59:00,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2024-11-22 04:59:00,803 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:59:00,803 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:59:00,803 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-22 04:59:00,803 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:59:00,804 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:59:00,804 INFO L85 PathProgramCache]: Analyzing trace with hash -21204197, now seen corresponding path program 1 times [2024-11-22 04:59:00,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:59:00,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493406753] [2024-11-22 04:59:00,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:59:00,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:59:01,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:59:01,509 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-22 04:59:01,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:59:01,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493406753] [2024-11-22 04:59:01,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493406753] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:59:01,509 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:59:01,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 04:59:01,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009048576] [2024-11-22 04:59:01,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:59:01,510 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 04:59:01,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:59:01,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 04:59:01,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:59:01,513 INFO L87 Difference]: Start difference. First operand 873 states and 1292 transitions. Second operand has 5 states, 5 states have (on average 42.4) internal successors, (212), 5 states have internal predecessors, (212), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:59:01,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:59:01,846 INFO L93 Difference]: Finished difference Result 1580 states and 2336 transitions. [2024-11-22 04:59:01,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 04:59:01,847 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 42.4) internal successors, (212), 5 states have internal predecessors, (212), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 224 [2024-11-22 04:59:01,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:59:01,851 INFO L225 Difference]: With dead ends: 1580 [2024-11-22 04:59:01,852 INFO L226 Difference]: Without dead ends: 873 [2024-11-22 04:59:01,853 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:59:01,854 INFO L432 NwaCegarLoop]: 1134 mSDtfsCounter, 1255 mSDsluCounter, 1143 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1258 SdHoareTripleChecker+Valid, 2277 SdHoareTripleChecker+Invalid, 309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 04:59:01,855 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1258 Valid, 2277 Invalid, 309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 04:59:01,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 873 states. [2024-11-22 04:59:01,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 873 to 873. [2024-11-22 04:59:01,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 873 states, 868 states have (on average 1.4804147465437787) internal successors, (1285), 868 states have internal predecessors, (1285), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-22 04:59:01,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 873 states to 873 states and 1291 transitions. [2024-11-22 04:59:01,877 INFO L78 Accepts]: Start accepts. Automaton has 873 states and 1291 transitions. Word has length 224 [2024-11-22 04:59:01,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:59:01,878 INFO L471 AbstractCegarLoop]: Abstraction has 873 states and 1291 transitions. [2024-11-22 04:59:01,878 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 42.4) internal successors, (212), 5 states have internal predecessors, (212), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:59:01,878 INFO L276 IsEmpty]: Start isEmpty. Operand 873 states and 1291 transitions. [2024-11-22 04:59:01,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2024-11-22 04:59:01,881 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:59:01,881 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:59:01,881 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-22 04:59:01,882 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:59:01,882 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:59:01,882 INFO L85 PathProgramCache]: Analyzing trace with hash -1181860306, now seen corresponding path program 1 times [2024-11-22 04:59:01,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:59:01,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418933379] [2024-11-22 04:59:01,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:59:01,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:59:02,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:59:02,382 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-22 04:59:02,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:59:02,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418933379] [2024-11-22 04:59:02,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418933379] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:59:02,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:59:02,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 04:59:02,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67270231] [2024-11-22 04:59:02,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:59:02,384 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 04:59:02,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:59:02,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 04:59:02,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:59:02,387 INFO L87 Difference]: Start difference. First operand 873 states and 1291 transitions. Second operand has 5 states, 5 states have (on average 42.6) internal successors, (213), 5 states have internal predecessors, (213), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:59:02,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:59:02,688 INFO L93 Difference]: Finished difference Result 1580 states and 2334 transitions. [2024-11-22 04:59:02,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 04:59:02,689 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 42.6) internal successors, (213), 5 states have internal predecessors, (213), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 225 [2024-11-22 04:59:02,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:59:02,693 INFO L225 Difference]: With dead ends: 1580 [2024-11-22 04:59:02,693 INFO L226 Difference]: Without dead ends: 873 [2024-11-22 04:59:02,694 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:59:02,695 INFO L432 NwaCegarLoop]: 1134 mSDtfsCounter, 2345 mSDsluCounter, 1136 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2348 SdHoareTripleChecker+Valid, 2270 SdHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 04:59:02,695 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2348 Valid, 2270 Invalid, 307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 04:59:02,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 873 states. [2024-11-22 04:59:02,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 873 to 873. [2024-11-22 04:59:02,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 873 states, 868 states have (on average 1.4792626728110598) internal successors, (1284), 868 states have internal predecessors, (1284), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-22 04:59:02,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 873 states to 873 states and 1290 transitions. [2024-11-22 04:59:02,713 INFO L78 Accepts]: Start accepts. Automaton has 873 states and 1290 transitions. Word has length 225 [2024-11-22 04:59:02,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:59:02,713 INFO L471 AbstractCegarLoop]: Abstraction has 873 states and 1290 transitions. [2024-11-22 04:59:02,714 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 42.6) internal successors, (213), 5 states have internal predecessors, (213), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:59:02,714 INFO L276 IsEmpty]: Start isEmpty. Operand 873 states and 1290 transitions. [2024-11-22 04:59:02,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2024-11-22 04:59:02,716 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:59:02,716 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:59:02,717 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-22 04:59:02,717 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:59:02,717 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:59:02,717 INFO L85 PathProgramCache]: Analyzing trace with hash -499178316, now seen corresponding path program 1 times [2024-11-22 04:59:02,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:59:02,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095158913] [2024-11-22 04:59:02,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:59:02,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:59:02,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:59:03,301 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-22 04:59:03,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:59:03,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095158913] [2024-11-22 04:59:03,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095158913] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:59:03,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:59:03,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 04:59:03,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521183101] [2024-11-22 04:59:03,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:59:03,303 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 04:59:03,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:59:03,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 04:59:03,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:59:03,307 INFO L87 Difference]: Start difference. First operand 873 states and 1290 transitions. Second operand has 5 states, 5 states have (on average 42.8) internal successors, (214), 5 states have internal predecessors, (214), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:59:03,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:59:03,604 INFO L93 Difference]: Finished difference Result 1580 states and 2332 transitions. [2024-11-22 04:59:03,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 04:59:03,605 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 42.8) internal successors, (214), 5 states have internal predecessors, (214), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 226 [2024-11-22 04:59:03,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:59:03,609 INFO L225 Difference]: With dead ends: 1580 [2024-11-22 04:59:03,609 INFO L226 Difference]: Without dead ends: 873 [2024-11-22 04:59:03,612 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:59:03,612 INFO L432 NwaCegarLoop]: 1134 mSDtfsCounter, 2337 mSDsluCounter, 1136 mSDsCounter, 0 mSdLazyCounter, 304 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2340 SdHoareTripleChecker+Valid, 2270 SdHoareTripleChecker+Invalid, 305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 04:59:03,613 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2340 Valid, 2270 Invalid, 305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 304 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 04:59:03,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 873 states. [2024-11-22 04:59:03,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 873 to 873. [2024-11-22 04:59:03,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 873 states, 868 states have (on average 1.478110599078341) internal successors, (1283), 868 states have internal predecessors, (1283), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-22 04:59:03,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 873 states to 873 states and 1289 transitions. [2024-11-22 04:59:03,630 INFO L78 Accepts]: Start accepts. Automaton has 873 states and 1289 transitions. Word has length 226 [2024-11-22 04:59:03,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:59:03,630 INFO L471 AbstractCegarLoop]: Abstraction has 873 states and 1289 transitions. [2024-11-22 04:59:03,631 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 42.8) internal successors, (214), 5 states have internal predecessors, (214), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:59:03,631 INFO L276 IsEmpty]: Start isEmpty. Operand 873 states and 1289 transitions. [2024-11-22 04:59:03,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2024-11-22 04:59:03,633 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:59:03,634 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:59:03,634 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-22 04:59:03,634 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:59:03,634 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:59:03,635 INFO L85 PathProgramCache]: Analyzing trace with hash -415180697, now seen corresponding path program 1 times [2024-11-22 04:59:03,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:59:03,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135201984] [2024-11-22 04:59:03,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:59:03,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:59:03,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:59:04,173 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-22 04:59:04,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:59:04,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135201984] [2024-11-22 04:59:04,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1135201984] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:59:04,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:59:04,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 04:59:04,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890556516] [2024-11-22 04:59:04,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:59:04,174 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 04:59:04,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:59:04,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 04:59:04,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:59:04,175 INFO L87 Difference]: Start difference. First operand 873 states and 1289 transitions. Second operand has 5 states, 5 states have (on average 43.0) internal successors, (215), 5 states have internal predecessors, (215), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:59:04,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:59:04,462 INFO L93 Difference]: Finished difference Result 1580 states and 2330 transitions. [2024-11-22 04:59:04,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 04:59:04,463 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 43.0) internal successors, (215), 5 states have internal predecessors, (215), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 227 [2024-11-22 04:59:04,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:59:04,467 INFO L225 Difference]: With dead ends: 1580 [2024-11-22 04:59:04,467 INFO L226 Difference]: Without dead ends: 873 [2024-11-22 04:59:04,468 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:59:04,468 INFO L432 NwaCegarLoop]: 1134 mSDtfsCounter, 1243 mSDsluCounter, 1143 mSDsCounter, 0 mSdLazyCounter, 302 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1246 SdHoareTripleChecker+Valid, 2277 SdHoareTripleChecker+Invalid, 303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 04:59:04,469 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1246 Valid, 2277 Invalid, 303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 302 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 04:59:04,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 873 states. [2024-11-22 04:59:04,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 873 to 873. [2024-11-22 04:59:04,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 873 states, 868 states have (on average 1.476958525345622) internal successors, (1282), 868 states have internal predecessors, (1282), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-22 04:59:04,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 873 states to 873 states and 1288 transitions. [2024-11-22 04:59:04,488 INFO L78 Accepts]: Start accepts. Automaton has 873 states and 1288 transitions. Word has length 227 [2024-11-22 04:59:04,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:59:04,488 INFO L471 AbstractCegarLoop]: Abstraction has 873 states and 1288 transitions. [2024-11-22 04:59:04,489 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 43.0) internal successors, (215), 5 states have internal predecessors, (215), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:59:04,489 INFO L276 IsEmpty]: Start isEmpty. Operand 873 states and 1288 transitions. [2024-11-22 04:59:04,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2024-11-22 04:59:04,491 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:59:04,491 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:59:04,492 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-22 04:59:04,492 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:59:04,492 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:59:04,492 INFO L85 PathProgramCache]: Analyzing trace with hash 2041671373, now seen corresponding path program 1 times [2024-11-22 04:59:04,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:59:04,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844128699] [2024-11-22 04:59:04,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:59:04,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:59:04,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:59:05,013 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-22 04:59:05,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:59:05,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844128699] [2024-11-22 04:59:05,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1844128699] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:59:05,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:59:05,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 04:59:05,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957830125] [2024-11-22 04:59:05,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:59:05,015 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 04:59:05,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:59:05,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 04:59:05,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:59:05,016 INFO L87 Difference]: Start difference. First operand 873 states and 1288 transitions. Second operand has 5 states, 5 states have (on average 43.2) internal successors, (216), 5 states have internal predecessors, (216), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:59:05,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:59:05,342 INFO L93 Difference]: Finished difference Result 1580 states and 2328 transitions. [2024-11-22 04:59:05,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 04:59:05,342 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 43.2) internal successors, (216), 5 states have internal predecessors, (216), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 228 [2024-11-22 04:59:05,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:59:05,346 INFO L225 Difference]: With dead ends: 1580 [2024-11-22 04:59:05,346 INFO L226 Difference]: Without dead ends: 873 [2024-11-22 04:59:05,347 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:59:05,348 INFO L432 NwaCegarLoop]: 1134 mSDtfsCounter, 1239 mSDsluCounter, 1143 mSDsCounter, 0 mSdLazyCounter, 300 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1242 SdHoareTripleChecker+Valid, 2277 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 04:59:05,348 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1242 Valid, 2277 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 300 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 04:59:05,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 873 states. [2024-11-22 04:59:05,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 873 to 873. [2024-11-22 04:59:05,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 873 states, 868 states have (on average 1.4758064516129032) internal successors, (1281), 868 states have internal predecessors, (1281), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-22 04:59:05,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 873 states to 873 states and 1287 transitions. [2024-11-22 04:59:05,372 INFO L78 Accepts]: Start accepts. Automaton has 873 states and 1287 transitions. Word has length 228 [2024-11-22 04:59:05,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:59:05,373 INFO L471 AbstractCegarLoop]: Abstraction has 873 states and 1287 transitions. [2024-11-22 04:59:05,374 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 43.2) internal successors, (216), 5 states have internal predecessors, (216), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:59:05,374 INFO L276 IsEmpty]: Start isEmpty. Operand 873 states and 1287 transitions. [2024-11-22 04:59:05,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2024-11-22 04:59:05,377 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:59:05,377 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:59:05,377 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-22 04:59:05,377 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:59:05,378 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:59:05,378 INFO L85 PathProgramCache]: Analyzing trace with hash 112399136, now seen corresponding path program 1 times [2024-11-22 04:59:05,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:59:05,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384966764] [2024-11-22 04:59:05,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:59:05,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:59:05,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:59:05,997 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-22 04:59:05,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:59:05,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384966764] [2024-11-22 04:59:05,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [384966764] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:59:05,998 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:59:05,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 04:59:05,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770188057] [2024-11-22 04:59:05,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:59:05,999 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 04:59:05,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:59:06,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 04:59:06,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:59:06,001 INFO L87 Difference]: Start difference. First operand 873 states and 1287 transitions. Second operand has 5 states, 5 states have (on average 43.4) internal successors, (217), 5 states have internal predecessors, (217), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:59:06,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:59:06,331 INFO L93 Difference]: Finished difference Result 1580 states and 2326 transitions. [2024-11-22 04:59:06,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 04:59:06,331 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 43.4) internal successors, (217), 5 states have internal predecessors, (217), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 229 [2024-11-22 04:59:06,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:59:06,336 INFO L225 Difference]: With dead ends: 1580 [2024-11-22 04:59:06,336 INFO L226 Difference]: Without dead ends: 873 [2024-11-22 04:59:06,337 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:59:06,338 INFO L432 NwaCegarLoop]: 1134 mSDtfsCounter, 1235 mSDsluCounter, 1143 mSDsCounter, 0 mSdLazyCounter, 298 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1238 SdHoareTripleChecker+Valid, 2277 SdHoareTripleChecker+Invalid, 299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 04:59:06,338 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1238 Valid, 2277 Invalid, 299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 298 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 04:59:06,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 873 states. [2024-11-22 04:59:06,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 873 to 873. [2024-11-22 04:59:06,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 873 states, 868 states have (on average 1.4746543778801844) internal successors, (1280), 868 states have internal predecessors, (1280), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-22 04:59:06,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 873 states to 873 states and 1286 transitions. [2024-11-22 04:59:06,359 INFO L78 Accepts]: Start accepts. Automaton has 873 states and 1286 transitions. Word has length 229 [2024-11-22 04:59:06,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:59:06,359 INFO L471 AbstractCegarLoop]: Abstraction has 873 states and 1286 transitions. [2024-11-22 04:59:06,359 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 43.4) internal successors, (217), 5 states have internal predecessors, (217), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:59:06,360 INFO L276 IsEmpty]: Start isEmpty. Operand 873 states and 1286 transitions. [2024-11-22 04:59:06,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2024-11-22 04:59:06,362 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:59:06,363 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:59:06,363 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-22 04:59:06,363 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:59:06,363 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:59:06,364 INFO L85 PathProgramCache]: Analyzing trace with hash 1644859750, now seen corresponding path program 1 times [2024-11-22 04:59:06,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:59:06,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954636588] [2024-11-22 04:59:06,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:59:06,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:59:06,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:59:07,009 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-22 04:59:07,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:59:07,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954636588] [2024-11-22 04:59:07,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [954636588] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:59:07,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:59:07,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 04:59:07,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23111962] [2024-11-22 04:59:07,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:59:07,012 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 04:59:07,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:59:07,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 04:59:07,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:59:07,013 INFO L87 Difference]: Start difference. First operand 873 states and 1286 transitions. Second operand has 5 states, 5 states have (on average 43.6) internal successors, (218), 5 states have internal predecessors, (218), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:59:07,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:59:07,318 INFO L93 Difference]: Finished difference Result 1580 states and 2324 transitions. [2024-11-22 04:59:07,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 04:59:07,319 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 43.6) internal successors, (218), 5 states have internal predecessors, (218), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 230 [2024-11-22 04:59:07,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:59:07,324 INFO L225 Difference]: With dead ends: 1580 [2024-11-22 04:59:07,324 INFO L226 Difference]: Without dead ends: 873 [2024-11-22 04:59:07,326 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:59:07,326 INFO L432 NwaCegarLoop]: 1134 mSDtfsCounter, 2305 mSDsluCounter, 1136 mSDsCounter, 0 mSdLazyCounter, 296 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2308 SdHoareTripleChecker+Valid, 2270 SdHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 04:59:07,326 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2308 Valid, 2270 Invalid, 297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 296 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 04:59:07,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 873 states. [2024-11-22 04:59:07,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 873 to 873. [2024-11-22 04:59:07,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 873 states, 868 states have (on average 1.4735023041474655) internal successors, (1279), 868 states have internal predecessors, (1279), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-22 04:59:07,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 873 states to 873 states and 1285 transitions. [2024-11-22 04:59:07,349 INFO L78 Accepts]: Start accepts. Automaton has 873 states and 1285 transitions. Word has length 230 [2024-11-22 04:59:07,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:59:07,350 INFO L471 AbstractCegarLoop]: Abstraction has 873 states and 1285 transitions. [2024-11-22 04:59:07,350 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 43.6) internal successors, (218), 5 states have internal predecessors, (218), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:59:07,350 INFO L276 IsEmpty]: Start isEmpty. Operand 873 states and 1285 transitions. [2024-11-22 04:59:07,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2024-11-22 04:59:07,352 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:59:07,352 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:59:07,352 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-22 04:59:07,353 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:59:07,353 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:59:07,354 INFO L85 PathProgramCache]: Analyzing trace with hash -1471009191, now seen corresponding path program 1 times [2024-11-22 04:59:07,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:59:07,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613936411] [2024-11-22 04:59:07,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:59:07,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:59:07,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:59:07,938 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-22 04:59:07,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:59:07,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613936411] [2024-11-22 04:59:07,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1613936411] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:59:07,939 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:59:07,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 04:59:07,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353218471] [2024-11-22 04:59:07,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:59:07,940 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 04:59:07,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:59:07,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 04:59:07,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:59:07,942 INFO L87 Difference]: Start difference. First operand 873 states and 1285 transitions. Second operand has 5 states, 5 states have (on average 43.8) internal successors, (219), 5 states have internal predecessors, (219), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:59:08,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:59:08,220 INFO L93 Difference]: Finished difference Result 1580 states and 2322 transitions. [2024-11-22 04:59:08,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 04:59:08,221 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 43.8) internal successors, (219), 5 states have internal predecessors, (219), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 231 [2024-11-22 04:59:08,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:59:08,224 INFO L225 Difference]: With dead ends: 1580 [2024-11-22 04:59:08,225 INFO L226 Difference]: Without dead ends: 873 [2024-11-22 04:59:08,226 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:59:08,227 INFO L432 NwaCegarLoop]: 1134 mSDtfsCounter, 1227 mSDsluCounter, 1143 mSDsCounter, 0 mSdLazyCounter, 294 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1230 SdHoareTripleChecker+Valid, 2277 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 04:59:08,227 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1230 Valid, 2277 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 294 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 04:59:08,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 873 states. [2024-11-22 04:59:08,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 873 to 873. [2024-11-22 04:59:08,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 873 states, 868 states have (on average 1.4723502304147464) internal successors, (1278), 868 states have internal predecessors, (1278), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-22 04:59:08,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 873 states to 873 states and 1284 transitions. [2024-11-22 04:59:08,257 INFO L78 Accepts]: Start accepts. Automaton has 873 states and 1284 transitions. Word has length 231 [2024-11-22 04:59:08,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:59:08,258 INFO L471 AbstractCegarLoop]: Abstraction has 873 states and 1284 transitions. [2024-11-22 04:59:08,258 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 43.8) internal successors, (219), 5 states have internal predecessors, (219), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:59:08,258 INFO L276 IsEmpty]: Start isEmpty. Operand 873 states and 1284 transitions. [2024-11-22 04:59:08,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2024-11-22 04:59:08,260 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:59:08,260 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:59:08,260 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-22 04:59:08,260 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:59:08,260 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:59:08,261 INFO L85 PathProgramCache]: Analyzing trace with hash 471977087, now seen corresponding path program 1 times [2024-11-22 04:59:08,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:59:08,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709198106] [2024-11-22 04:59:08,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:59:08,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:59:08,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:59:08,933 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-22 04:59:08,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:59:08,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709198106] [2024-11-22 04:59:08,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1709198106] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:59:08,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:59:08,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 04:59:08,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104278157] [2024-11-22 04:59:08,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:59:08,937 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 04:59:08,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:59:08,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 04:59:08,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 04:59:08,938 INFO L87 Difference]: Start difference. First operand 873 states and 1284 transitions. Second operand has 4 states, 4 states have (on average 55.0) internal successors, (220), 4 states have internal predecessors, (220), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:59:09,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:59:09,115 INFO L93 Difference]: Finished difference Result 1580 states and 2320 transitions. [2024-11-22 04:59:09,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 04:59:09,116 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 55.0) internal successors, (220), 4 states have internal predecessors, (220), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 232 [2024-11-22 04:59:09,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:59:09,119 INFO L225 Difference]: With dead ends: 1580 [2024-11-22 04:59:09,120 INFO L226 Difference]: Without dead ends: 873 [2024-11-22 04:59:09,121 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:59:09,121 INFO L432 NwaCegarLoop]: 1198 mSDtfsCounter, 1120 mSDsluCounter, 1200 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1120 SdHoareTripleChecker+Valid, 2398 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 04:59:09,121 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1120 Valid, 2398 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 04:59:09,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 873 states. [2024-11-22 04:59:09,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 873 to 873. [2024-11-22 04:59:09,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 873 states, 868 states have (on average 1.4711981566820276) internal successors, (1277), 868 states have internal predecessors, (1277), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-22 04:59:09,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 873 states to 873 states and 1283 transitions. [2024-11-22 04:59:09,148 INFO L78 Accepts]: Start accepts. Automaton has 873 states and 1283 transitions. Word has length 232 [2024-11-22 04:59:09,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:59:09,148 INFO L471 AbstractCegarLoop]: Abstraction has 873 states and 1283 transitions. [2024-11-22 04:59:09,149 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 55.0) internal successors, (220), 4 states have internal predecessors, (220), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:59:09,149 INFO L276 IsEmpty]: Start isEmpty. Operand 873 states and 1283 transitions. [2024-11-22 04:59:09,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2024-11-22 04:59:09,152 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:59:09,152 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:59:09,152 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-22 04:59:09,153 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:59:09,153 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:59:09,153 INFO L85 PathProgramCache]: Analyzing trace with hash -1873635488, now seen corresponding path program 1 times [2024-11-22 04:59:09,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:59:09,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017591227] [2024-11-22 04:59:09,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:59:09,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:59:09,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:59:09,721 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-22 04:59:09,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:59:09,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017591227] [2024-11-22 04:59:09,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2017591227] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:59:09,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:59:09,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 04:59:09,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589736914] [2024-11-22 04:59:09,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:59:09,724 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 04:59:09,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:59:09,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 04:59:09,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:59:09,726 INFO L87 Difference]: Start difference. First operand 873 states and 1283 transitions. Second operand has 5 states, 5 states have (on average 44.2) internal successors, (221), 5 states have internal predecessors, (221), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:59:09,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:59:09,894 INFO L93 Difference]: Finished difference Result 1592 states and 2335 transitions. [2024-11-22 04:59:09,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 04:59:09,896 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 44.2) internal successors, (221), 5 states have internal predecessors, (221), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 233 [2024-11-22 04:59:09,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:59:09,899 INFO L225 Difference]: With dead ends: 1592 [2024-11-22 04:59:09,900 INFO L226 Difference]: Without dead ends: 873 [2024-11-22 04:59:09,902 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-22 04:59:09,903 INFO L432 NwaCegarLoop]: 1267 mSDtfsCounter, 1143 mSDsluCounter, 2469 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1143 SdHoareTripleChecker+Valid, 3736 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 04:59:09,904 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1143 Valid, 3736 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 04:59:09,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 873 states. [2024-11-22 04:59:09,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 873 to 873. [2024-11-22 04:59:09,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 873 states, 868 states have (on average 1.4700460829493087) internal successors, (1276), 868 states have internal predecessors, (1276), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-22 04:59:09,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 873 states to 873 states and 1282 transitions. [2024-11-22 04:59:09,926 INFO L78 Accepts]: Start accepts. Automaton has 873 states and 1282 transitions. Word has length 233 [2024-11-22 04:59:09,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:59:09,926 INFO L471 AbstractCegarLoop]: Abstraction has 873 states and 1282 transitions. [2024-11-22 04:59:09,927 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 44.2) internal successors, (221), 5 states have internal predecessors, (221), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:59:09,927 INFO L276 IsEmpty]: Start isEmpty. Operand 873 states and 1282 transitions. [2024-11-22 04:59:09,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2024-11-22 04:59:09,929 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:59:09,929 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:59:09,929 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-22 04:59:09,930 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:59:09,930 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:59:09,930 INFO L85 PathProgramCache]: Analyzing trace with hash 1852737269, now seen corresponding path program 1 times [2024-11-22 04:59:09,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:59:09,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200957156] [2024-11-22 04:59:09,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:59:09,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:59:10,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:59:10,508 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-22 04:59:10,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:59:10,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200957156] [2024-11-22 04:59:10,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200957156] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:59:10,509 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:59:10,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 04:59:10,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126463944] [2024-11-22 04:59:10,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:59:10,510 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 04:59:10,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:59:10,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 04:59:10,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:59:10,513 INFO L87 Difference]: Start difference. First operand 873 states and 1282 transitions. Second operand has 5 states, 5 states have (on average 44.4) internal successors, (222), 5 states have internal predecessors, (222), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:59:10,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:59:10,683 INFO L93 Difference]: Finished difference Result 1580 states and 2316 transitions. [2024-11-22 04:59:10,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 04:59:10,683 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 44.4) internal successors, (222), 5 states have internal predecessors, (222), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 234 [2024-11-22 04:59:10,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:59:10,688 INFO L225 Difference]: With dead ends: 1580 [2024-11-22 04:59:10,688 INFO L226 Difference]: Without dead ends: 873 [2024-11-22 04:59:10,690 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:59:10,690 INFO L432 NwaCegarLoop]: 1198 mSDtfsCounter, 1266 mSDsluCounter, 1207 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1269 SdHoareTripleChecker+Valid, 2405 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 04:59:10,691 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1269 Valid, 2405 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 04:59:10,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 873 states. [2024-11-22 04:59:10,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 873 to 873. [2024-11-22 04:59:10,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 873 states, 868 states have (on average 1.4688940092165899) internal successors, (1275), 868 states have internal predecessors, (1275), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-22 04:59:10,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 873 states to 873 states and 1281 transitions. [2024-11-22 04:59:10,709 INFO L78 Accepts]: Start accepts. Automaton has 873 states and 1281 transitions. Word has length 234 [2024-11-22 04:59:10,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:59:10,710 INFO L471 AbstractCegarLoop]: Abstraction has 873 states and 1281 transitions. [2024-11-22 04:59:10,710 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 44.4) internal successors, (222), 5 states have internal predecessors, (222), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:59:10,710 INFO L276 IsEmpty]: Start isEmpty. Operand 873 states and 1281 transitions. [2024-11-22 04:59:10,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2024-11-22 04:59:10,712 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:59:10,712 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:59:10,712 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-22 04:59:10,712 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:59:10,713 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:59:10,713 INFO L85 PathProgramCache]: Analyzing trace with hash 1924208615, now seen corresponding path program 1 times [2024-11-22 04:59:10,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:59:10,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355834379] [2024-11-22 04:59:10,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:59:10,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:59:10,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:59:11,209 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-22 04:59:11,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:59:11,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355834379] [2024-11-22 04:59:11,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355834379] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:59:11,211 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:59:11,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 04:59:11,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542828409] [2024-11-22 04:59:11,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:59:11,212 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 04:59:11,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:59:11,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 04:59:11,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:59:11,214 INFO L87 Difference]: Start difference. First operand 873 states and 1281 transitions. Second operand has 5 states, 5 states have (on average 44.6) internal successors, (223), 5 states have internal predecessors, (223), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:59:11,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:59:11,388 INFO L93 Difference]: Finished difference Result 1580 states and 2314 transitions. [2024-11-22 04:59:11,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 04:59:11,388 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 44.6) internal successors, (223), 5 states have internal predecessors, (223), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 235 [2024-11-22 04:59:11,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:59:11,392 INFO L225 Difference]: With dead ends: 1580 [2024-11-22 04:59:11,392 INFO L226 Difference]: Without dead ends: 873 [2024-11-22 04:59:11,395 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:59:11,395 INFO L432 NwaCegarLoop]: 1198 mSDtfsCounter, 2383 mSDsluCounter, 1200 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2386 SdHoareTripleChecker+Valid, 2398 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 04:59:11,396 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2386 Valid, 2398 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 04:59:11,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 873 states. [2024-11-22 04:59:11,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 873 to 873. [2024-11-22 04:59:11,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 873 states, 868 states have (on average 1.467741935483871) internal successors, (1274), 868 states have internal predecessors, (1274), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-22 04:59:11,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 873 states to 873 states and 1280 transitions. [2024-11-22 04:59:11,413 INFO L78 Accepts]: Start accepts. Automaton has 873 states and 1280 transitions. Word has length 235 [2024-11-22 04:59:11,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:59:11,413 INFO L471 AbstractCegarLoop]: Abstraction has 873 states and 1280 transitions. [2024-11-22 04:59:11,413 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 44.6) internal successors, (223), 5 states have internal predecessors, (223), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:59:11,413 INFO L276 IsEmpty]: Start isEmpty. Operand 873 states and 1280 transitions. [2024-11-22 04:59:11,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2024-11-22 04:59:11,415 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:59:11,415 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:59:11,415 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-22 04:59:11,415 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:59:11,416 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:59:11,416 INFO L85 PathProgramCache]: Analyzing trace with hash -597065508, now seen corresponding path program 1 times [2024-11-22 04:59:11,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:59:11,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736374779] [2024-11-22 04:59:11,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:59:11,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:59:11,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:59:11,946 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-22 04:59:11,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:59:11,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736374779] [2024-11-22 04:59:11,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736374779] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:59:11,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:59:11,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 04:59:11,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210326372] [2024-11-22 04:59:11,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:59:11,948 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 04:59:11,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:59:11,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 04:59:11,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:59:11,950 INFO L87 Difference]: Start difference. First operand 873 states and 1280 transitions. Second operand has 5 states, 5 states have (on average 44.8) internal successors, (224), 5 states have internal predecessors, (224), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:59:12,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:59:12,120 INFO L93 Difference]: Finished difference Result 1580 states and 2312 transitions. [2024-11-22 04:59:12,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 04:59:12,121 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 44.8) internal successors, (224), 5 states have internal predecessors, (224), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 236 [2024-11-22 04:59:12,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:59:12,125 INFO L225 Difference]: With dead ends: 1580 [2024-11-22 04:59:12,125 INFO L226 Difference]: Without dead ends: 873 [2024-11-22 04:59:12,126 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:59:12,127 INFO L432 NwaCegarLoop]: 1198 mSDtfsCounter, 1258 mSDsluCounter, 1207 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1261 SdHoareTripleChecker+Valid, 2405 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 04:59:12,128 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1261 Valid, 2405 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 04:59:12,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 873 states. [2024-11-22 04:59:12,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 873 to 873. [2024-11-22 04:59:12,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 873 states, 868 states have (on average 1.4665898617511521) internal successors, (1273), 868 states have internal predecessors, (1273), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-22 04:59:12,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 873 states to 873 states and 1279 transitions. [2024-11-22 04:59:12,149 INFO L78 Accepts]: Start accepts. Automaton has 873 states and 1279 transitions. Word has length 236 [2024-11-22 04:59:12,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:59:12,149 INFO L471 AbstractCegarLoop]: Abstraction has 873 states and 1279 transitions. [2024-11-22 04:59:12,153 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 44.8) internal successors, (224), 5 states have internal predecessors, (224), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:59:12,153 INFO L276 IsEmpty]: Start isEmpty. Operand 873 states and 1279 transitions. [2024-11-22 04:59:12,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2024-11-22 04:59:12,155 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:59:12,155 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:59:12,155 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-22 04:59:12,155 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:59:12,156 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:59:12,156 INFO L85 PathProgramCache]: Analyzing trace with hash 1399312366, now seen corresponding path program 1 times [2024-11-22 04:59:12,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:59:12,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54245990] [2024-11-22 04:59:12,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:59:12,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:59:12,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:59:12,700 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-22 04:59:12,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:59:12,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54245990] [2024-11-22 04:59:12,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54245990] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:59:12,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:59:12,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 04:59:12,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279744932] [2024-11-22 04:59:12,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:59:12,701 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 04:59:12,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:59:12,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 04:59:12,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:59:12,703 INFO L87 Difference]: Start difference. First operand 873 states and 1279 transitions. Second operand has 5 states, 5 states have (on average 45.0) internal successors, (225), 5 states have internal predecessors, (225), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:59:12,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:59:12,852 INFO L93 Difference]: Finished difference Result 1580 states and 2310 transitions. [2024-11-22 04:59:12,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 04:59:12,853 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 45.0) internal successors, (225), 5 states have internal predecessors, (225), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 237 [2024-11-22 04:59:12,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:59:12,856 INFO L225 Difference]: With dead ends: 1580 [2024-11-22 04:59:12,856 INFO L226 Difference]: Without dead ends: 873 [2024-11-22 04:59:12,857 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:59:12,857 INFO L432 NwaCegarLoop]: 1198 mSDtfsCounter, 2367 mSDsluCounter, 1200 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2370 SdHoareTripleChecker+Valid, 2398 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 04:59:12,858 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2370 Valid, 2398 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 04:59:12,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 873 states. [2024-11-22 04:59:12,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 873 to 873. [2024-11-22 04:59:12,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 873 states, 868 states have (on average 1.4654377880184333) internal successors, (1272), 868 states have internal predecessors, (1272), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-22 04:59:12,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 873 states to 873 states and 1278 transitions. [2024-11-22 04:59:12,873 INFO L78 Accepts]: Start accepts. Automaton has 873 states and 1278 transitions. Word has length 237 [2024-11-22 04:59:12,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:59:12,873 INFO L471 AbstractCegarLoop]: Abstraction has 873 states and 1278 transitions. [2024-11-22 04:59:12,874 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 45.0) internal successors, (225), 5 states have internal predecessors, (225), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:59:12,874 INFO L276 IsEmpty]: Start isEmpty. Operand 873 states and 1278 transitions. [2024-11-22 04:59:12,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2024-11-22 04:59:12,875 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:59:12,876 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:59:12,876 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-22 04:59:12,876 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:59:12,876 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:59:12,876 INFO L85 PathProgramCache]: Analyzing trace with hash -93181373, now seen corresponding path program 1 times [2024-11-22 04:59:12,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:59:12,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305061004] [2024-11-22 04:59:12,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:59:12,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:59:13,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:59:13,461 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-22 04:59:13,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:59:13,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305061004] [2024-11-22 04:59:13,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [305061004] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:59:13,461 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:59:13,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 04:59:13,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567175430] [2024-11-22 04:59:13,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:59:13,462 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 04:59:13,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:59:13,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 04:59:13,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:59:13,464 INFO L87 Difference]: Start difference. First operand 873 states and 1278 transitions. Second operand has 5 states, 5 states have (on average 45.2) internal successors, (226), 5 states have internal predecessors, (226), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:59:13,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:59:13,624 INFO L93 Difference]: Finished difference Result 1580 states and 2308 transitions. [2024-11-22 04:59:13,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 04:59:13,625 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 45.2) internal successors, (226), 5 states have internal predecessors, (226), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 238 [2024-11-22 04:59:13,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:59:13,628 INFO L225 Difference]: With dead ends: 1580 [2024-11-22 04:59:13,628 INFO L226 Difference]: Without dead ends: 873 [2024-11-22 04:59:13,630 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:59:13,631 INFO L432 NwaCegarLoop]: 1198 mSDtfsCounter, 2359 mSDsluCounter, 1200 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2362 SdHoareTripleChecker+Valid, 2398 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 04:59:13,631 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2362 Valid, 2398 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 04:59:13,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 873 states. [2024-11-22 04:59:13,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 873 to 873. [2024-11-22 04:59:13,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 873 states, 868 states have (on average 1.4642857142857142) internal successors, (1271), 868 states have internal predecessors, (1271), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-22 04:59:13,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 873 states to 873 states and 1277 transitions. [2024-11-22 04:59:13,648 INFO L78 Accepts]: Start accepts. Automaton has 873 states and 1277 transitions. Word has length 238 [2024-11-22 04:59:13,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:59:13,648 INFO L471 AbstractCegarLoop]: Abstraction has 873 states and 1277 transitions. [2024-11-22 04:59:13,649 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 45.2) internal successors, (226), 5 states have internal predecessors, (226), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:59:13,649 INFO L276 IsEmpty]: Start isEmpty. Operand 873 states and 1277 transitions. [2024-11-22 04:59:13,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2024-11-22 04:59:13,650 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:59:13,651 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:59:13,651 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-22 04:59:13,651 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:59:13,651 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:59:13,651 INFO L85 PathProgramCache]: Analyzing trace with hash -763920523, now seen corresponding path program 1 times [2024-11-22 04:59:13,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:59:13,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015509089] [2024-11-22 04:59:13,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:59:13,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:59:13,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:59:14,231 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-22 04:59:14,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:59:14,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015509089] [2024-11-22 04:59:14,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1015509089] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:59:14,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:59:14,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 04:59:14,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185896241] [2024-11-22 04:59:14,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:59:14,233 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 04:59:14,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:59:14,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 04:59:14,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:59:14,234 INFO L87 Difference]: Start difference. First operand 873 states and 1277 transitions. Second operand has 5 states, 5 states have (on average 45.4) internal successors, (227), 5 states have internal predecessors, (227), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:59:14,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:59:14,392 INFO L93 Difference]: Finished difference Result 1580 states and 2306 transitions. [2024-11-22 04:59:14,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 04:59:14,393 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 45.4) internal successors, (227), 5 states have internal predecessors, (227), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 239 [2024-11-22 04:59:14,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:59:14,400 INFO L225 Difference]: With dead ends: 1580 [2024-11-22 04:59:14,400 INFO L226 Difference]: Without dead ends: 873 [2024-11-22 04:59:14,402 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:59:14,402 INFO L432 NwaCegarLoop]: 1198 mSDtfsCounter, 1243 mSDsluCounter, 1207 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1246 SdHoareTripleChecker+Valid, 2405 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 04:59:14,407 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1246 Valid, 2405 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 04:59:14,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 873 states. [2024-11-22 04:59:14,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 873 to 873. [2024-11-22 04:59:14,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 873 states, 868 states have (on average 1.4631336405529953) internal successors, (1270), 868 states have internal predecessors, (1270), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-22 04:59:14,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 873 states to 873 states and 1276 transitions. [2024-11-22 04:59:14,423 INFO L78 Accepts]: Start accepts. Automaton has 873 states and 1276 transitions. Word has length 239 [2024-11-22 04:59:14,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:59:14,423 INFO L471 AbstractCegarLoop]: Abstraction has 873 states and 1276 transitions. [2024-11-22 04:59:14,424 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 45.4) internal successors, (227), 5 states have internal predecessors, (227), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:59:14,424 INFO L276 IsEmpty]: Start isEmpty. Operand 873 states and 1276 transitions. [2024-11-22 04:59:14,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2024-11-22 04:59:14,425 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:59:14,425 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:59:14,425 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-22 04:59:14,426 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:59:14,426 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:59:14,426 INFO L85 PathProgramCache]: Analyzing trace with hash 673130979, now seen corresponding path program 1 times [2024-11-22 04:59:14,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:59:14,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726686576] [2024-11-22 04:59:14,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:59:14,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:59:14,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:59:15,137 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-22 04:59:15,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:59:15,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726686576] [2024-11-22 04:59:15,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1726686576] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:59:15,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:59:15,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 04:59:15,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121997222] [2024-11-22 04:59:15,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:59:15,139 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 04:59:15,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:59:15,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 04:59:15,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 04:59:15,140 INFO L87 Difference]: Start difference. First operand 873 states and 1276 transitions. Second operand has 4 states, 4 states have (on average 57.0) internal successors, (228), 4 states have internal predecessors, (228), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:59:15,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:59:15,210 INFO L93 Difference]: Finished difference Result 1580 states and 2304 transitions. [2024-11-22 04:59:15,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 04:59:15,211 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 57.0) internal successors, (228), 4 states have internal predecessors, (228), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 240 [2024-11-22 04:59:15,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:59:15,214 INFO L225 Difference]: With dead ends: 1580 [2024-11-22 04:59:15,214 INFO L226 Difference]: Without dead ends: 873 [2024-11-22 04:59:15,219 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:59:15,220 INFO L432 NwaCegarLoop]: 1250 mSDtfsCounter, 1135 mSDsluCounter, 1252 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1135 SdHoareTripleChecker+Valid, 2502 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 04:59:15,220 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1135 Valid, 2502 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 04:59:15,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 873 states. [2024-11-22 04:59:15,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 873 to 873. [2024-11-22 04:59:15,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 873 states, 868 states have (on average 1.4608294930875576) internal successors, (1268), 868 states have internal predecessors, (1268), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-22 04:59:15,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 873 states to 873 states and 1274 transitions. [2024-11-22 04:59:15,240 INFO L78 Accepts]: Start accepts. Automaton has 873 states and 1274 transitions. Word has length 240 [2024-11-22 04:59:15,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:59:15,241 INFO L471 AbstractCegarLoop]: Abstraction has 873 states and 1274 transitions. [2024-11-22 04:59:15,241 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 57.0) internal successors, (228), 4 states have internal predecessors, (228), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:59:15,241 INFO L276 IsEmpty]: Start isEmpty. Operand 873 states and 1274 transitions. [2024-11-22 04:59:15,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2024-11-22 04:59:15,243 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:59:15,243 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:59:15,243 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-22 04:59:15,243 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:59:15,244 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:59:15,244 INFO L85 PathProgramCache]: Analyzing trace with hash 418060320, now seen corresponding path program 1 times [2024-11-22 04:59:15,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:59:15,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997511797] [2024-11-22 04:59:15,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:59:15,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:59:15,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:59:15,885 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-22 04:59:15,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:59:15,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997511797] [2024-11-22 04:59:15,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997511797] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:59:15,886 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:59:15,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 04:59:15,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228577370] [2024-11-22 04:59:15,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:59:15,887 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 04:59:15,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:59:15,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 04:59:15,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:59:15,888 INFO L87 Difference]: Start difference. First operand 873 states and 1274 transitions. Second operand has 5 states, 5 states have (on average 46.0) internal successors, (230), 5 states have internal predecessors, (230), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:59:15,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:59:15,962 INFO L93 Difference]: Finished difference Result 1580 states and 2300 transitions. [2024-11-22 04:59:15,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 04:59:15,963 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 46.0) internal successors, (230), 5 states have internal predecessors, (230), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 242 [2024-11-22 04:59:15,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:59:15,965 INFO L225 Difference]: With dead ends: 1580 [2024-11-22 04:59:15,966 INFO L226 Difference]: Without dead ends: 873 [2024-11-22 04:59:15,968 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:59:15,969 INFO L432 NwaCegarLoop]: 1250 mSDtfsCounter, 1257 mSDsluCounter, 1259 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1260 SdHoareTripleChecker+Valid, 2509 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 04:59:15,969 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1260 Valid, 2509 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 04:59:15,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 873 states. [2024-11-22 04:59:15,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 873 to 873. [2024-11-22 04:59:15,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 873 states, 868 states have (on average 1.4596774193548387) internal successors, (1267), 868 states have internal predecessors, (1267), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-22 04:59:15,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 873 states to 873 states and 1273 transitions. [2024-11-22 04:59:15,987 INFO L78 Accepts]: Start accepts. Automaton has 873 states and 1273 transitions. Word has length 242 [2024-11-22 04:59:15,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:59:15,987 INFO L471 AbstractCegarLoop]: Abstraction has 873 states and 1273 transitions. [2024-11-22 04:59:15,988 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 46.0) internal successors, (230), 5 states have internal predecessors, (230), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:59:15,988 INFO L276 IsEmpty]: Start isEmpty. Operand 873 states and 1273 transitions. [2024-11-22 04:59:15,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2024-11-22 04:59:15,989 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:59:15,989 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:59:15,990 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-22 04:59:15,990 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:59:15,990 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:59:15,990 INFO L85 PathProgramCache]: Analyzing trace with hash -1635386700, now seen corresponding path program 1 times [2024-11-22 04:59:15,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:59:15,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787141012] [2024-11-22 04:59:15,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:59:15,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:59:16,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:59:16,751 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-22 04:59:16,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:59:16,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787141012] [2024-11-22 04:59:16,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787141012] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:59:16,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:59:16,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 04:59:16,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726322852] [2024-11-22 04:59:16,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:59:16,754 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 04:59:16,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:59:16,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 04:59:16,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 04:59:16,755 INFO L87 Difference]: Start difference. First operand 873 states and 1273 transitions. Second operand has 4 states, 4 states have (on average 57.75) internal successors, (231), 4 states have internal predecessors, (231), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:59:16,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:59:16,864 INFO L93 Difference]: Finished difference Result 1580 states and 2298 transitions. [2024-11-22 04:59:16,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 04:59:16,865 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 57.75) internal successors, (231), 4 states have internal predecessors, (231), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 243 [2024-11-22 04:59:16,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:59:16,871 INFO L225 Difference]: With dead ends: 1580 [2024-11-22 04:59:16,871 INFO L226 Difference]: Without dead ends: 873 [2024-11-22 04:59:16,874 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:59:16,874 INFO L432 NwaCegarLoop]: 1227 mSDtfsCounter, 1126 mSDsluCounter, 1229 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1126 SdHoareTripleChecker+Valid, 2456 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 04:59:16,875 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1126 Valid, 2456 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 04:59:16,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 873 states. [2024-11-22 04:59:16,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 873 to 873. [2024-11-22 04:59:16,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 873 states, 868 states have (on average 1.4585253456221199) internal successors, (1266), 868 states have internal predecessors, (1266), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-22 04:59:16,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 873 states to 873 states and 1272 transitions. [2024-11-22 04:59:16,891 INFO L78 Accepts]: Start accepts. Automaton has 873 states and 1272 transitions. Word has length 243 [2024-11-22 04:59:16,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:59:16,892 INFO L471 AbstractCegarLoop]: Abstraction has 873 states and 1272 transitions. [2024-11-22 04:59:16,892 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 57.75) internal successors, (231), 4 states have internal predecessors, (231), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:59:16,892 INFO L276 IsEmpty]: Start isEmpty. Operand 873 states and 1272 transitions. [2024-11-22 04:59:16,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2024-11-22 04:59:16,893 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:59:16,894 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:59:16,894 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-22 04:59:16,894 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:59:16,895 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:59:16,895 INFO L85 PathProgramCache]: Analyzing trace with hash 43354009, now seen corresponding path program 1 times [2024-11-22 04:59:16,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:59:16,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591325827] [2024-11-22 04:59:16,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:59:16,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:59:17,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:59:17,406 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-22 04:59:17,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:59:17,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591325827] [2024-11-22 04:59:17,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591325827] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:59:17,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:59:17,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 04:59:17,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189047280] [2024-11-22 04:59:17,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:59:17,408 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 04:59:17,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:59:17,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 04:59:17,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:59:17,409 INFO L87 Difference]: Start difference. First operand 873 states and 1272 transitions. Second operand has 5 states, 5 states have (on average 46.4) internal successors, (232), 5 states have internal predecessors, (232), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:59:17,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:59:17,523 INFO L93 Difference]: Finished difference Result 1580 states and 2296 transitions. [2024-11-22 04:59:17,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 04:59:17,524 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 46.4) internal successors, (232), 5 states have internal predecessors, (232), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 244 [2024-11-22 04:59:17,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:59:17,527 INFO L225 Difference]: With dead ends: 1580 [2024-11-22 04:59:17,527 INFO L226 Difference]: Without dead ends: 873 [2024-11-22 04:59:17,528 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:59:17,528 INFO L432 NwaCegarLoop]: 1227 mSDtfsCounter, 2376 mSDsluCounter, 1229 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2379 SdHoareTripleChecker+Valid, 2456 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 04:59:17,529 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2379 Valid, 2456 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 04:59:17,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 873 states. [2024-11-22 04:59:17,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 873 to 873. [2024-11-22 04:59:17,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 873 states, 868 states have (on average 1.457373271889401) internal successors, (1265), 868 states have internal predecessors, (1265), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-22 04:59:17,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 873 states to 873 states and 1271 transitions. [2024-11-22 04:59:17,547 INFO L78 Accepts]: Start accepts. Automaton has 873 states and 1271 transitions. Word has length 244 [2024-11-22 04:59:17,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:59:17,547 INFO L471 AbstractCegarLoop]: Abstraction has 873 states and 1271 transitions. [2024-11-22 04:59:17,547 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 46.4) internal successors, (232), 5 states have internal predecessors, (232), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:59:17,547 INFO L276 IsEmpty]: Start isEmpty. Operand 873 states and 1271 transitions. [2024-11-22 04:59:17,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2024-11-22 04:59:17,549 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:59:17,549 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:59:17,549 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-22 04:59:17,549 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:59:17,549 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:59:17,550 INFO L85 PathProgramCache]: Analyzing trace with hash 1198169741, now seen corresponding path program 1 times [2024-11-22 04:59:17,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:59:17,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812751633] [2024-11-22 04:59:17,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:59:17,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:59:17,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:59:18,163 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-22 04:59:18,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:59:18,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812751633] [2024-11-22 04:59:18,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1812751633] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:59:18,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:59:18,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 04:59:18,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866839914] [2024-11-22 04:59:18,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:59:18,165 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 04:59:18,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:59:18,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 04:59:18,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:59:18,168 INFO L87 Difference]: Start difference. First operand 873 states and 1271 transitions. Second operand has 5 states, 5 states have (on average 46.6) internal successors, (233), 5 states have internal predecessors, (233), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:59:18,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:59:18,283 INFO L93 Difference]: Finished difference Result 1580 states and 2294 transitions. [2024-11-22 04:59:18,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 04:59:18,284 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 46.6) internal successors, (233), 5 states have internal predecessors, (233), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 245 [2024-11-22 04:59:18,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:59:18,286 INFO L225 Difference]: With dead ends: 1580 [2024-11-22 04:59:18,286 INFO L226 Difference]: Without dead ends: 873 [2024-11-22 04:59:18,288 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:59:18,288 INFO L432 NwaCegarLoop]: 1227 mSDtfsCounter, 2368 mSDsluCounter, 1229 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2371 SdHoareTripleChecker+Valid, 2456 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 04:59:18,289 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2371 Valid, 2456 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 04:59:18,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 873 states. [2024-11-22 04:59:18,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 873 to 873. [2024-11-22 04:59:18,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 873 states, 868 states have (on average 1.456221198156682) internal successors, (1264), 868 states have internal predecessors, (1264), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-22 04:59:18,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 873 states to 873 states and 1270 transitions. [2024-11-22 04:59:18,309 INFO L78 Accepts]: Start accepts. Automaton has 873 states and 1270 transitions. Word has length 245 [2024-11-22 04:59:18,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:59:18,310 INFO L471 AbstractCegarLoop]: Abstraction has 873 states and 1270 transitions. [2024-11-22 04:59:18,311 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 46.6) internal successors, (233), 5 states have internal predecessors, (233), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:59:18,311 INFO L276 IsEmpty]: Start isEmpty. Operand 873 states and 1270 transitions. [2024-11-22 04:59:18,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2024-11-22 04:59:18,313 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:59:18,313 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:59:18,313 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-22 04:59:18,313 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:59:18,314 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:59:18,314 INFO L85 PathProgramCache]: Analyzing trace with hash -1585059950, now seen corresponding path program 1 times [2024-11-22 04:59:18,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:59:18,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16754854] [2024-11-22 04:59:18,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:59:18,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:59:18,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:59:18,895 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-22 04:59:18,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:59:18,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16754854] [2024-11-22 04:59:18,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [16754854] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:59:18,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:59:18,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 04:59:18,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153953602] [2024-11-22 04:59:18,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:59:18,897 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 04:59:18,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:59:18,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 04:59:18,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:59:18,898 INFO L87 Difference]: Start difference. First operand 873 states and 1270 transitions. Second operand has 5 states, 5 states have (on average 46.8) internal successors, (234), 5 states have internal predecessors, (234), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:59:18,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:59:18,997 INFO L93 Difference]: Finished difference Result 1580 states and 2292 transitions. [2024-11-22 04:59:18,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 04:59:18,998 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 46.8) internal successors, (234), 5 states have internal predecessors, (234), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 246 [2024-11-22 04:59:18,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:59:19,000 INFO L225 Difference]: With dead ends: 1580 [2024-11-22 04:59:19,001 INFO L226 Difference]: Without dead ends: 873 [2024-11-22 04:59:19,002 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:59:19,002 INFO L432 NwaCegarLoop]: 1227 mSDtfsCounter, 1248 mSDsluCounter, 1236 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1251 SdHoareTripleChecker+Valid, 2463 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 04:59:19,003 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1251 Valid, 2463 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 04:59:19,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 873 states. [2024-11-22 04:59:19,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 873 to 873. [2024-11-22 04:59:19,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 873 states, 868 states have (on average 1.455069124423963) internal successors, (1263), 868 states have internal predecessors, (1263), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-22 04:59:19,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 873 states to 873 states and 1269 transitions. [2024-11-22 04:59:19,020 INFO L78 Accepts]: Start accepts. Automaton has 873 states and 1269 transitions. Word has length 246 [2024-11-22 04:59:19,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:59:19,020 INFO L471 AbstractCegarLoop]: Abstraction has 873 states and 1269 transitions. [2024-11-22 04:59:19,020 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 46.8) internal successors, (234), 5 states have internal predecessors, (234), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:59:19,020 INFO L276 IsEmpty]: Start isEmpty. Operand 873 states and 1269 transitions. [2024-11-22 04:59:19,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2024-11-22 04:59:19,022 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:59:19,022 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:59:19,022 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-22 04:59:19,023 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:59:19,024 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:59:19,025 INFO L85 PathProgramCache]: Analyzing trace with hash 693455590, now seen corresponding path program 1 times [2024-11-22 04:59:19,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:59:19,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316129324] [2024-11-22 04:59:19,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:59:19,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:59:19,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:59:19,718 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-22 04:59:19,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:59:19,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316129324] [2024-11-22 04:59:19,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316129324] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:59:19,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:59:19,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 04:59:19,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085926165] [2024-11-22 04:59:19,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:59:19,719 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 04:59:19,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:59:19,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 04:59:19,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 04:59:19,721 INFO L87 Difference]: Start difference. First operand 873 states and 1269 transitions. Second operand has 4 states, 4 states have (on average 58.75) internal successors, (235), 4 states have internal predecessors, (235), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-22 04:59:19,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:59:19,773 INFO L93 Difference]: Finished difference Result 1580 states and 2290 transitions. [2024-11-22 04:59:19,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 04:59:19,773 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 58.75) internal successors, (235), 4 states have internal predecessors, (235), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 247 [2024-11-22 04:59:19,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:59:19,775 INFO L225 Difference]: With dead ends: 1580 [2024-11-22 04:59:19,775 INFO L226 Difference]: Without dead ends: 873 [2024-11-22 04:59:19,775 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:59:19,776 INFO L432 NwaCegarLoop]: 1249 mSDtfsCounter, 1166 mSDsluCounter, 1251 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1168 SdHoareTripleChecker+Valid, 2500 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 04:59:19,776 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1168 Valid, 2500 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 04:59:19,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 873 states. [2024-11-22 04:59:19,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 873 to 873. [2024-11-22 04:59:19,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 873 states, 868 states have (on average 1.4539170506912442) internal successors, (1262), 868 states have internal predecessors, (1262), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-22 04:59:19,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 873 states to 873 states and 1268 transitions. [2024-11-22 04:59:19,792 INFO L78 Accepts]: Start accepts. Automaton has 873 states and 1268 transitions. Word has length 247 [2024-11-22 04:59:19,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:59:19,792 INFO L471 AbstractCegarLoop]: Abstraction has 873 states and 1268 transitions. [2024-11-22 04:59:19,792 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 58.75) internal successors, (235), 4 states have internal predecessors, (235), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-22 04:59:19,793 INFO L276 IsEmpty]: Start isEmpty. Operand 873 states and 1268 transitions. [2024-11-22 04:59:19,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2024-11-22 04:59:19,794 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:59:19,794 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:59:19,794 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-22 04:59:19,794 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:59:19,795 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:59:19,795 INFO L85 PathProgramCache]: Analyzing trace with hash 150370404, now seen corresponding path program 1 times [2024-11-22 04:59:19,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:59:19,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132369696] [2024-11-22 04:59:19,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:59:19,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:59:20,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:59:20,529 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-22 04:59:20,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:59:20,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132369696] [2024-11-22 04:59:20,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132369696] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:59:20,530 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:59:20,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 04:59:20,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373426573] [2024-11-22 04:59:20,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:59:20,531 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 04:59:20,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:59:20,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 04:59:20,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 04:59:20,532 INFO L87 Difference]: Start difference. First operand 873 states and 1268 transitions. Second operand has 4 states, 4 states have (on average 59.0) internal successors, (236), 4 states have internal predecessors, (236), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-22 04:59:20,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:59:20,599 INFO L93 Difference]: Finished difference Result 1580 states and 2288 transitions. [2024-11-22 04:59:20,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 04:59:20,600 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 59.0) internal successors, (236), 4 states have internal predecessors, (236), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 248 [2024-11-22 04:59:20,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:59:20,602 INFO L225 Difference]: With dead ends: 1580 [2024-11-22 04:59:20,602 INFO L226 Difference]: Without dead ends: 873 [2024-11-22 04:59:20,603 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:59:20,603 INFO L432 NwaCegarLoop]: 1249 mSDtfsCounter, 1164 mSDsluCounter, 1251 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1166 SdHoareTripleChecker+Valid, 2500 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 04:59:20,604 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1166 Valid, 2500 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 04:59:20,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 873 states. [2024-11-22 04:59:20,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 873 to 873. [2024-11-22 04:59:20,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 873 states, 868 states have (on average 1.4527649769585254) internal successors, (1261), 868 states have internal predecessors, (1261), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-22 04:59:20,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 873 states to 873 states and 1267 transitions. [2024-11-22 04:59:20,626 INFO L78 Accepts]: Start accepts. Automaton has 873 states and 1267 transitions. Word has length 248 [2024-11-22 04:59:20,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:59:20,627 INFO L471 AbstractCegarLoop]: Abstraction has 873 states and 1267 transitions. [2024-11-22 04:59:20,627 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 59.0) internal successors, (236), 4 states have internal predecessors, (236), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-22 04:59:20,627 INFO L276 IsEmpty]: Start isEmpty. Operand 873 states and 1267 transitions. [2024-11-22 04:59:20,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2024-11-22 04:59:20,629 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:59:20,629 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:59:20,629 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-22 04:59:20,629 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:59:20,629 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:59:20,630 INFO L85 PathProgramCache]: Analyzing trace with hash 1257331331, now seen corresponding path program 1 times [2024-11-22 04:59:20,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:59:20,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555298488] [2024-11-22 04:59:20,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:59:20,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:59:20,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:59:21,396 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-22 04:59:21,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:59:21,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [555298488] [2024-11-22 04:59:21,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [555298488] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:59:21,397 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:59:21,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 04:59:21,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198005513] [2024-11-22 04:59:21,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:59:21,398 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 04:59:21,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:59:21,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 04:59:21,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:59:21,399 INFO L87 Difference]: Start difference. First operand 873 states and 1267 transitions. Second operand has 5 states, 5 states have (on average 47.4) internal successors, (237), 5 states have internal predecessors, (237), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:59:21,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:59:21,504 INFO L93 Difference]: Finished difference Result 1580 states and 2286 transitions. [2024-11-22 04:59:21,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 04:59:21,505 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 47.4) internal successors, (237), 5 states have internal predecessors, (237), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 249 [2024-11-22 04:59:21,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:59:21,510 INFO L225 Difference]: With dead ends: 1580 [2024-11-22 04:59:21,510 INFO L226 Difference]: Without dead ends: 873 [2024-11-22 04:59:21,511 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:59:21,512 INFO L432 NwaCegarLoop]: 1225 mSDtfsCounter, 1119 mSDsluCounter, 1227 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1119 SdHoareTripleChecker+Valid, 2452 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 04:59:21,514 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1119 Valid, 2452 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 04:59:21,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 873 states. [2024-11-22 04:59:21,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 873 to 873. [2024-11-22 04:59:21,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 873 states, 868 states have (on average 1.4516129032258065) internal successors, (1260), 868 states have internal predecessors, (1260), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-22 04:59:21,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 873 states to 873 states and 1266 transitions. [2024-11-22 04:59:21,532 INFO L78 Accepts]: Start accepts. Automaton has 873 states and 1266 transitions. Word has length 249 [2024-11-22 04:59:21,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:59:21,532 INFO L471 AbstractCegarLoop]: Abstraction has 873 states and 1266 transitions. [2024-11-22 04:59:21,532 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 47.4) internal successors, (237), 5 states have internal predecessors, (237), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:59:21,532 INFO L276 IsEmpty]: Start isEmpty. Operand 873 states and 1266 transitions. [2024-11-22 04:59:21,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2024-11-22 04:59:21,534 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:59:21,534 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:59:21,534 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-11-22 04:59:21,534 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:59:21,536 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:59:21,536 INFO L85 PathProgramCache]: Analyzing trace with hash 974291473, now seen corresponding path program 1 times [2024-11-22 04:59:21,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:59:21,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979452026] [2024-11-22 04:59:21,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:59:21,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:59:21,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:59:22,344 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-22 04:59:22,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:59:22,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979452026] [2024-11-22 04:59:22,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1979452026] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:59:22,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:59:22,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 04:59:22,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551158120] [2024-11-22 04:59:22,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:59:22,346 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 04:59:22,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:59:22,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 04:59:22,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:59:22,348 INFO L87 Difference]: Start difference. First operand 873 states and 1266 transitions. Second operand has 5 states, 5 states have (on average 47.6) internal successors, (238), 5 states have internal predecessors, (238), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:59:22,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:59:22,467 INFO L93 Difference]: Finished difference Result 1580 states and 2284 transitions. [2024-11-22 04:59:22,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 04:59:22,468 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 47.6) internal successors, (238), 5 states have internal predecessors, (238), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 250 [2024-11-22 04:59:22,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:59:22,470 INFO L225 Difference]: With dead ends: 1580 [2024-11-22 04:59:22,470 INFO L226 Difference]: Without dead ends: 873 [2024-11-22 04:59:22,472 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:59:22,472 INFO L432 NwaCegarLoop]: 1225 mSDtfsCounter, 1115 mSDsluCounter, 1234 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1115 SdHoareTripleChecker+Valid, 2459 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 [2024-11-22 04:59:22,472 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1115 Valid, 2459 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 04:59:22,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 873 states. [2024-11-22 04:59:22,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 873 to 873. [2024-11-22 04:59:22,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 873 states, 868 states have (on average 1.4504608294930876) internal successors, (1259), 868 states have internal predecessors, (1259), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-22 04:59:22,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 873 states to 873 states and 1265 transitions. [2024-11-22 04:59:22,491 INFO L78 Accepts]: Start accepts. Automaton has 873 states and 1265 transitions. Word has length 250 [2024-11-22 04:59:22,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:59:22,492 INFO L471 AbstractCegarLoop]: Abstraction has 873 states and 1265 transitions. [2024-11-22 04:59:22,492 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 47.6) internal successors, (238), 5 states have internal predecessors, (238), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:59:22,492 INFO L276 IsEmpty]: Start isEmpty. Operand 873 states and 1265 transitions. [2024-11-22 04:59:22,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2024-11-22 04:59:22,494 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:59:22,494 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:59:22,494 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-11-22 04:59:22,494 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:59:22,494 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:59:22,495 INFO L85 PathProgramCache]: Analyzing trace with hash 1194113988, now seen corresponding path program 1 times [2024-11-22 04:59:22,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:59:22,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981819308] [2024-11-22 04:59:22,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:59:22,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:59:22,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:59:23,283 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-22 04:59:23,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:59:23,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981819308] [2024-11-22 04:59:23,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981819308] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:59:23,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:59:23,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 04:59:23,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266615357] [2024-11-22 04:59:23,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:59:23,285 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 04:59:23,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:59:23,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 04:59:23,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:59:23,286 INFO L87 Difference]: Start difference. First operand 873 states and 1265 transitions. Second operand has 5 states, 5 states have (on average 47.8) internal successors, (239), 5 states have internal predecessors, (239), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:59:23,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:59:23,405 INFO L93 Difference]: Finished difference Result 1580 states and 2282 transitions. [2024-11-22 04:59:23,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 04:59:23,406 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 47.8) internal successors, (239), 5 states have internal predecessors, (239), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 251 [2024-11-22 04:59:23,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:59:23,408 INFO L225 Difference]: With dead ends: 1580 [2024-11-22 04:59:23,408 INFO L226 Difference]: Without dead ends: 873 [2024-11-22 04:59:23,409 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:59:23,410 INFO L432 NwaCegarLoop]: 1225 mSDtfsCounter, 2220 mSDsluCounter, 1227 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2220 SdHoareTripleChecker+Valid, 2452 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 04:59:23,411 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2220 Valid, 2452 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 04:59:23,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 873 states. [2024-11-22 04:59:23,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 873 to 873. [2024-11-22 04:59:23,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 873 states, 868 states have (on average 1.4493087557603688) internal successors, (1258), 868 states have internal predecessors, (1258), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-22 04:59:23,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 873 states to 873 states and 1264 transitions. [2024-11-22 04:59:23,427 INFO L78 Accepts]: Start accepts. Automaton has 873 states and 1264 transitions. Word has length 251 [2024-11-22 04:59:23,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:59:23,427 INFO L471 AbstractCegarLoop]: Abstraction has 873 states and 1264 transitions. [2024-11-22 04:59:23,427 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 47.8) internal successors, (239), 5 states have internal predecessors, (239), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:59:23,428 INFO L276 IsEmpty]: Start isEmpty. Operand 873 states and 1264 transitions. [2024-11-22 04:59:23,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2024-11-22 04:59:23,429 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:59:23,429 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:59:23,429 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-11-22 04:59:23,429 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:59:23,429 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:59:23,430 INFO L85 PathProgramCache]: Analyzing trace with hash -1041211248, now seen corresponding path program 1 times [2024-11-22 04:59:23,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:59:23,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903203709] [2024-11-22 04:59:23,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:59:23,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:59:23,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:59:24,120 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-22 04:59:24,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:59:24,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903203709] [2024-11-22 04:59:24,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903203709] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:59:24,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:59:24,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 04:59:24,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565843607] [2024-11-22 04:59:24,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:59:24,123 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 04:59:24,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:59:24,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 04:59:24,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:59:24,124 INFO L87 Difference]: Start difference. First operand 873 states and 1264 transitions. Second operand has 5 states, 5 states have (on average 48.0) internal successors, (240), 5 states have internal predecessors, (240), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:59:24,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:59:24,344 INFO L93 Difference]: Finished difference Result 1580 states and 2280 transitions. [2024-11-22 04:59:24,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 04:59:24,344 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 48.0) internal successors, (240), 5 states have internal predecessors, (240), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 252 [2024-11-22 04:59:24,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:59:24,346 INFO L225 Difference]: With dead ends: 1580 [2024-11-22 04:59:24,346 INFO L226 Difference]: Without dead ends: 873 [2024-11-22 04:59:24,347 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:59:24,348 INFO L432 NwaCegarLoop]: 1186 mSDtfsCounter, 1100 mSDsluCounter, 2369 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1100 SdHoareTripleChecker+Valid, 3555 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 04:59:24,348 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1100 Valid, 3555 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 04:59:24,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 873 states. [2024-11-22 04:59:24,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 873 to 873. [2024-11-22 04:59:24,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 873 states, 868 states have (on average 1.4481566820276497) internal successors, (1257), 868 states have internal predecessors, (1257), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-22 04:59:24,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 873 states to 873 states and 1263 transitions. [2024-11-22 04:59:24,363 INFO L78 Accepts]: Start accepts. Automaton has 873 states and 1263 transitions. Word has length 252 [2024-11-22 04:59:24,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:59:24,364 INFO L471 AbstractCegarLoop]: Abstraction has 873 states and 1263 transitions. [2024-11-22 04:59:24,364 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 48.0) internal successors, (240), 5 states have internal predecessors, (240), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:59:24,364 INFO L276 IsEmpty]: Start isEmpty. Operand 873 states and 1263 transitions. [2024-11-22 04:59:24,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2024-11-22 04:59:24,365 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:59:24,366 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:59:24,366 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-11-22 04:59:24,366 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:59:24,366 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:59:24,366 INFO L85 PathProgramCache]: Analyzing trace with hash -1956600604, now seen corresponding path program 1 times [2024-11-22 04:59:24,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:59:24,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223287509] [2024-11-22 04:59:24,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:59:24,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:59:24,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:59:25,073 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-22 04:59:25,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:59:25,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223287509] [2024-11-22 04:59:25,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1223287509] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:59:25,074 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:59:25,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 04:59:25,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326630274] [2024-11-22 04:59:25,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:59:25,075 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 04:59:25,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:59:25,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 04:59:25,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:59:25,076 INFO L87 Difference]: Start difference. First operand 873 states and 1263 transitions. Second operand has 5 states, 5 states have (on average 48.2) internal successors, (241), 5 states have internal predecessors, (241), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:59:25,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:59:25,247 INFO L93 Difference]: Finished difference Result 1580 states and 2278 transitions. [2024-11-22 04:59:25,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 04:59:25,248 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 48.2) internal successors, (241), 5 states have internal predecessors, (241), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 253 [2024-11-22 04:59:25,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:59:25,250 INFO L225 Difference]: With dead ends: 1580 [2024-11-22 04:59:25,250 INFO L226 Difference]: Without dead ends: 873 [2024-11-22 04:59:25,251 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:59:25,252 INFO L432 NwaCegarLoop]: 1186 mSDtfsCounter, 1097 mSDsluCounter, 1195 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1097 SdHoareTripleChecker+Valid, 2381 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 04:59:25,252 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1097 Valid, 2381 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 04:59:25,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 873 states. [2024-11-22 04:59:25,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 873 to 873. [2024-11-22 04:59:25,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 873 states, 868 states have (on average 1.4470046082949308) internal successors, (1256), 868 states have internal predecessors, (1256), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-22 04:59:25,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 873 states to 873 states and 1262 transitions. [2024-11-22 04:59:25,268 INFO L78 Accepts]: Start accepts. Automaton has 873 states and 1262 transitions. Word has length 253 [2024-11-22 04:59:25,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:59:25,269 INFO L471 AbstractCegarLoop]: Abstraction has 873 states and 1262 transitions. [2024-11-22 04:59:25,269 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 48.2) internal successors, (241), 5 states have internal predecessors, (241), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:59:25,269 INFO L276 IsEmpty]: Start isEmpty. Operand 873 states and 1262 transitions. [2024-11-22 04:59:25,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2024-11-22 04:59:25,270 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:59:25,271 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:59:25,271 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-11-22 04:59:25,271 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:59:25,271 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:59:25,272 INFO L85 PathProgramCache]: Analyzing trace with hash -1801333743, now seen corresponding path program 1 times [2024-11-22 04:59:25,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:59:25,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158614211] [2024-11-22 04:59:25,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:59:25,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:59:25,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:59:25,938 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-22 04:59:25,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:59:25,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158614211] [2024-11-22 04:59:25,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1158614211] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:59:25,939 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:59:25,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 04:59:25,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926477885] [2024-11-22 04:59:25,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:59:25,940 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 04:59:25,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:59:25,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 04:59:25,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:59:25,941 INFO L87 Difference]: Start difference. First operand 873 states and 1262 transitions. Second operand has 5 states, 5 states have (on average 48.4) internal successors, (242), 5 states have internal predecessors, (242), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:59:26,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:59:26,115 INFO L93 Difference]: Finished difference Result 1580 states and 2276 transitions. [2024-11-22 04:59:26,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 04:59:26,116 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 48.4) internal successors, (242), 5 states have internal predecessors, (242), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 254 [2024-11-22 04:59:26,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:59:26,118 INFO L225 Difference]: With dead ends: 1580 [2024-11-22 04:59:26,118 INFO L226 Difference]: Without dead ends: 873 [2024-11-22 04:59:26,119 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:59:26,120 INFO L432 NwaCegarLoop]: 1186 mSDtfsCounter, 2184 mSDsluCounter, 1188 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2184 SdHoareTripleChecker+Valid, 2374 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 04:59:26,120 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2184 Valid, 2374 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 04:59:26,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 873 states. [2024-11-22 04:59:26,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 873 to 873. [2024-11-22 04:59:26,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 873 states, 868 states have (on average 1.445852534562212) internal successors, (1255), 868 states have internal predecessors, (1255), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-22 04:59:26,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 873 states to 873 states and 1261 transitions. [2024-11-22 04:59:26,135 INFO L78 Accepts]: Start accepts. Automaton has 873 states and 1261 transitions. Word has length 254 [2024-11-22 04:59:26,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:59:26,135 INFO L471 AbstractCegarLoop]: Abstraction has 873 states and 1261 transitions. [2024-11-22 04:59:26,136 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 48.4) internal successors, (242), 5 states have internal predecessors, (242), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:59:26,136 INFO L276 IsEmpty]: Start isEmpty. Operand 873 states and 1261 transitions. [2024-11-22 04:59:26,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2024-11-22 04:59:26,138 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:59:26,138 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:59:26,139 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-11-22 04:59:26,139 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:59:26,139 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:59:26,139 INFO L85 PathProgramCache]: Analyzing trace with hash 1371089187, now seen corresponding path program 1 times [2024-11-22 04:59:26,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:59:26,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639718062] [2024-11-22 04:59:26,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:59:26,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:59:26,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:59:26,833 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-22 04:59:26,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:59:26,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639718062] [2024-11-22 04:59:26,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1639718062] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:59:26,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:59:26,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 04:59:26,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109163109] [2024-11-22 04:59:26,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:59:26,835 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 04:59:26,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:59:26,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 04:59:26,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:59:26,838 INFO L87 Difference]: Start difference. First operand 873 states and 1261 transitions. Second operand has 5 states, 5 states have (on average 48.6) internal successors, (243), 5 states have internal predecessors, (243), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:59:27,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:59:27,008 INFO L93 Difference]: Finished difference Result 1580 states and 2274 transitions. [2024-11-22 04:59:27,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 04:59:27,008 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 48.6) internal successors, (243), 5 states have internal predecessors, (243), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 255 [2024-11-22 04:59:27,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:59:27,010 INFO L225 Difference]: With dead ends: 1580 [2024-11-22 04:59:27,010 INFO L226 Difference]: Without dead ends: 873 [2024-11-22 04:59:27,012 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:59:27,012 INFO L432 NwaCegarLoop]: 1186 mSDtfsCounter, 2178 mSDsluCounter, 1188 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2178 SdHoareTripleChecker+Valid, 2374 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 04:59:27,012 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2178 Valid, 2374 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 04:59:27,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 873 states. [2024-11-22 04:59:27,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 873 to 873. [2024-11-22 04:59:27,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 873 states, 868 states have (on average 1.444700460829493) internal successors, (1254), 868 states have internal predecessors, (1254), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-22 04:59:27,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 873 states to 873 states and 1260 transitions. [2024-11-22 04:59:27,030 INFO L78 Accepts]: Start accepts. Automaton has 873 states and 1260 transitions. Word has length 255 [2024-11-22 04:59:27,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:59:27,031 INFO L471 AbstractCegarLoop]: Abstraction has 873 states and 1260 transitions. [2024-11-22 04:59:27,032 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 48.6) internal successors, (243), 5 states have internal predecessors, (243), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:59:27,032 INFO L276 IsEmpty]: Start isEmpty. Operand 873 states and 1260 transitions. [2024-11-22 04:59:27,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2024-11-22 04:59:27,033 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:59:27,033 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:59:27,034 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2024-11-22 04:59:27,034 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:59:27,034 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:59:27,034 INFO L85 PathProgramCache]: Analyzing trace with hash -1554746350, now seen corresponding path program 1 times [2024-11-22 04:59:27,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:59:27,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235733427] [2024-11-22 04:59:27,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:59:27,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:59:27,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:59:27,897 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-22 04:59:27,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:59:27,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235733427] [2024-11-22 04:59:27,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235733427] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:59:27,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:59:27,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 04:59:27,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294304864] [2024-11-22 04:59:27,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:59:27,899 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 04:59:27,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:59:27,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 04:59:27,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 04:59:27,901 INFO L87 Difference]: Start difference. First operand 873 states and 1260 transitions. Second operand has 4 states, 4 states have (on average 61.0) internal successors, (244), 4 states have internal predecessors, (244), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:59:28,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:59:28,049 INFO L93 Difference]: Finished difference Result 1580 states and 2272 transitions. [2024-11-22 04:59:28,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 04:59:28,050 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 61.0) internal successors, (244), 4 states have internal predecessors, (244), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 256 [2024-11-22 04:59:28,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:59:28,052 INFO L225 Difference]: With dead ends: 1580 [2024-11-22 04:59:28,052 INFO L226 Difference]: Without dead ends: 873 [2024-11-22 04:59:28,053 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:59:28,053 INFO L432 NwaCegarLoop]: 1186 mSDtfsCounter, 1079 mSDsluCounter, 1188 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1079 SdHoareTripleChecker+Valid, 2374 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 04:59:28,054 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1079 Valid, 2374 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 04:59:28,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 873 states. [2024-11-22 04:59:28,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 873 to 873. [2024-11-22 04:59:28,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 873 states, 868 states have (on average 1.4435483870967742) internal successors, (1253), 868 states have internal predecessors, (1253), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-22 04:59:28,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 873 states to 873 states and 1259 transitions. [2024-11-22 04:59:28,069 INFO L78 Accepts]: Start accepts. Automaton has 873 states and 1259 transitions. Word has length 256 [2024-11-22 04:59:28,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:59:28,069 INFO L471 AbstractCegarLoop]: Abstraction has 873 states and 1259 transitions. [2024-11-22 04:59:28,070 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 61.0) internal successors, (244), 4 states have internal predecessors, (244), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:59:28,070 INFO L276 IsEmpty]: Start isEmpty. Operand 873 states and 1259 transitions. [2024-11-22 04:59:28,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2024-11-22 04:59:28,071 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:59:28,071 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:59:28,072 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2024-11-22 04:59:28,072 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:59:28,072 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:59:28,073 INFO L85 PathProgramCache]: Analyzing trace with hash 1792821474, now seen corresponding path program 1 times [2024-11-22 04:59:28,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:59:28,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722616758] [2024-11-22 04:59:28,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:59:28,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:59:28,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:59:28,743 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-22 04:59:28,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:59:28,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722616758] [2024-11-22 04:59:28,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1722616758] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:59:28,744 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:59:28,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 04:59:28,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035317756] [2024-11-22 04:59:28,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:59:28,745 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 04:59:28,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:59:28,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 04:59:28,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:59:28,746 INFO L87 Difference]: Start difference. First operand 873 states and 1259 transitions. Second operand has 5 states, 5 states have (on average 49.0) internal successors, (245), 5 states have internal predecessors, (245), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:59:28,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:59:28,933 INFO L93 Difference]: Finished difference Result 1580 states and 2270 transitions. [2024-11-22 04:59:28,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 04:59:28,933 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 49.0) internal successors, (245), 5 states have internal predecessors, (245), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 257 [2024-11-22 04:59:28,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:59:28,935 INFO L225 Difference]: With dead ends: 1580 [2024-11-22 04:59:28,936 INFO L226 Difference]: Without dead ends: 873 [2024-11-22 04:59:28,937 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:59:28,937 INFO L432 NwaCegarLoop]: 1186 mSDtfsCounter, 2166 mSDsluCounter, 1188 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2166 SdHoareTripleChecker+Valid, 2374 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 04:59:28,937 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2166 Valid, 2374 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 04:59:28,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 873 states. [2024-11-22 04:59:28,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 873 to 873. [2024-11-22 04:59:28,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 873 states, 868 states have (on average 1.4423963133640554) internal successors, (1252), 868 states have internal predecessors, (1252), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-22 04:59:28,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 873 states to 873 states and 1258 transitions. [2024-11-22 04:59:28,952 INFO L78 Accepts]: Start accepts. Automaton has 873 states and 1258 transitions. Word has length 257 [2024-11-22 04:59:28,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:59:28,953 INFO L471 AbstractCegarLoop]: Abstraction has 873 states and 1258 transitions. [2024-11-22 04:59:28,953 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 49.0) internal successors, (245), 5 states have internal predecessors, (245), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:59:28,953 INFO L276 IsEmpty]: Start isEmpty. Operand 873 states and 1258 transitions. [2024-11-22 04:59:28,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2024-11-22 04:59:28,954 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:59:28,955 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:59:28,955 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2024-11-22 04:59:28,955 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:59:28,955 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:59:28,956 INFO L85 PathProgramCache]: Analyzing trace with hash -28004205, now seen corresponding path program 1 times [2024-11-22 04:59:28,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:59:28,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864213452] [2024-11-22 04:59:28,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:59:28,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:59:29,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:59:29,556 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-22 04:59:29,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:59:29,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864213452] [2024-11-22 04:59:29,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864213452] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:59:29,557 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:59:29,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 04:59:29,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599482699] [2024-11-22 04:59:29,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:59:29,558 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 04:59:29,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:59:29,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 04:59:29,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:59:29,559 INFO L87 Difference]: Start difference. First operand 873 states and 1258 transitions. Second operand has 5 states, 5 states have (on average 49.2) internal successors, (246), 5 states have internal predecessors, (246), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:59:29,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:59:29,708 INFO L93 Difference]: Finished difference Result 1580 states and 2268 transitions. [2024-11-22 04:59:29,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 04:59:29,709 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 49.2) internal successors, (246), 5 states have internal predecessors, (246), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 258 [2024-11-22 04:59:29,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:59:29,711 INFO L225 Difference]: With dead ends: 1580 [2024-11-22 04:59:29,711 INFO L226 Difference]: Without dead ends: 873 [2024-11-22 04:59:29,712 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:59:29,713 INFO L432 NwaCegarLoop]: 1186 mSDtfsCounter, 2160 mSDsluCounter, 1188 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2160 SdHoareTripleChecker+Valid, 2374 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 04:59:29,713 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2160 Valid, 2374 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 04:59:29,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 873 states. [2024-11-22 04:59:29,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 873 to 873. [2024-11-22 04:59:29,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 873 states, 868 states have (on average 1.4412442396313363) internal successors, (1251), 868 states have internal predecessors, (1251), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-22 04:59:29,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 873 states to 873 states and 1257 transitions. [2024-11-22 04:59:29,729 INFO L78 Accepts]: Start accepts. Automaton has 873 states and 1257 transitions. Word has length 258 [2024-11-22 04:59:29,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:59:29,730 INFO L471 AbstractCegarLoop]: Abstraction has 873 states and 1257 transitions. [2024-11-22 04:59:29,730 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 49.2) internal successors, (246), 5 states have internal predecessors, (246), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:59:29,730 INFO L276 IsEmpty]: Start isEmpty. Operand 873 states and 1257 transitions. [2024-11-22 04:59:29,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2024-11-22 04:59:29,732 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:59:29,732 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:59:29,732 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2024-11-22 04:59:29,733 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:59:29,733 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:59:29,733 INFO L85 PathProgramCache]: Analyzing trace with hash 1997902881, now seen corresponding path program 1 times [2024-11-22 04:59:29,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:59:29,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132071233] [2024-11-22 04:59:29,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:59:29,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:59:30,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:59:30,381 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-22 04:59:30,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:59:30,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132071233] [2024-11-22 04:59:30,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132071233] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:59:30,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:59:30,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 04:59:30,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657479882] [2024-11-22 04:59:30,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:59:30,384 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 04:59:30,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:59:30,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 04:59:30,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 04:59:30,385 INFO L87 Difference]: Start difference. First operand 873 states and 1257 transitions. Second operand has 4 states, 4 states have (on average 61.75) internal successors, (247), 4 states have internal predecessors, (247), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:59:30,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:59:30,622 INFO L93 Difference]: Finished difference Result 1580 states and 2266 transitions. [2024-11-22 04:59:30,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 04:59:30,623 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 61.75) internal successors, (247), 4 states have internal predecessors, (247), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 259 [2024-11-22 04:59:30,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:59:30,625 INFO L225 Difference]: With dead ends: 1580 [2024-11-22 04:59:30,625 INFO L226 Difference]: Without dead ends: 873 [2024-11-22 04:59:30,626 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:59:30,627 INFO L432 NwaCegarLoop]: 1107 mSDtfsCounter, 1061 mSDsluCounter, 1109 mSDsCounter, 0 mSdLazyCounter, 292 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1061 SdHoareTripleChecker+Valid, 2216 SdHoareTripleChecker+Invalid, 292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 04:59:30,627 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1061 Valid, 2216 Invalid, 292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 292 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 04:59:30,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 873 states. [2024-11-22 04:59:30,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 873 to 873. [2024-11-22 04:59:30,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 873 states, 868 states have (on average 1.4400921658986174) internal successors, (1250), 868 states have internal predecessors, (1250), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-22 04:59:30,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 873 states to 873 states and 1256 transitions. [2024-11-22 04:59:30,644 INFO L78 Accepts]: Start accepts. Automaton has 873 states and 1256 transitions. Word has length 259 [2024-11-22 04:59:30,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:59:30,644 INFO L471 AbstractCegarLoop]: Abstraction has 873 states and 1256 transitions. [2024-11-22 04:59:30,645 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 61.75) internal successors, (247), 4 states have internal predecessors, (247), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:59:30,645 INFO L276 IsEmpty]: Start isEmpty. Operand 873 states and 1256 transitions. [2024-11-22 04:59:30,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2024-11-22 04:59:30,646 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:59:30,646 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:59:30,648 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2024-11-22 04:59:30,648 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:59:30,649 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:59:30,649 INFO L85 PathProgramCache]: Analyzing trace with hash 165499379, now seen corresponding path program 1 times [2024-11-22 04:59:30,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:59:30,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064068721] [2024-11-22 04:59:30,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:59:30,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:59:30,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:59:31,242 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-22 04:59:31,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:59:31,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064068721] [2024-11-22 04:59:31,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064068721] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:59:31,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:59:31,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 04:59:31,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497990683] [2024-11-22 04:59:31,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:59:31,243 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 04:59:31,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:59:31,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 04:59:31,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:59:31,244 INFO L87 Difference]: Start difference. First operand 873 states and 1256 transitions. Second operand has 5 states, 5 states have (on average 49.6) internal successors, (248), 5 states have internal predecessors, (248), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:59:31,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:59:31,495 INFO L93 Difference]: Finished difference Result 1580 states and 2264 transitions. [2024-11-22 04:59:31,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 04:59:31,496 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 49.6) internal successors, (248), 5 states have internal predecessors, (248), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 260 [2024-11-22 04:59:31,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:59:31,497 INFO L225 Difference]: With dead ends: 1580 [2024-11-22 04:59:31,497 INFO L226 Difference]: Without dead ends: 873 [2024-11-22 04:59:31,498 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:59:31,499 INFO L432 NwaCegarLoop]: 1107 mSDtfsCounter, 1059 mSDsluCounter, 1116 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1059 SdHoareTripleChecker+Valid, 2223 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 04:59:31,499 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1059 Valid, 2223 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 290 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 04:59:31,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 873 states. [2024-11-22 04:59:31,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 873 to 873. [2024-11-22 04:59:31,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 873 states, 868 states have (on average 1.4389400921658986) internal successors, (1249), 868 states have internal predecessors, (1249), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-22 04:59:31,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 873 states to 873 states and 1255 transitions. [2024-11-22 04:59:31,513 INFO L78 Accepts]: Start accepts. Automaton has 873 states and 1255 transitions. Word has length 260 [2024-11-22 04:59:31,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:59:31,514 INFO L471 AbstractCegarLoop]: Abstraction has 873 states and 1255 transitions. [2024-11-22 04:59:31,514 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 49.6) internal successors, (248), 5 states have internal predecessors, (248), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:59:31,514 INFO L276 IsEmpty]: Start isEmpty. Operand 873 states and 1255 transitions. [2024-11-22 04:59:31,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2024-11-22 04:59:31,515 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:59:31,516 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:59:31,516 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2024-11-22 04:59:31,516 INFO L396 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:59:31,516 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:59:31,517 INFO L85 PathProgramCache]: Analyzing trace with hash 1704585826, now seen corresponding path program 1 times [2024-11-22 04:59:31,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:59:31,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446312765] [2024-11-22 04:59:31,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:59:31,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:59:31,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:59:32,164 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-22 04:59:32,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:59:32,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446312765] [2024-11-22 04:59:32,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446312765] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:59:32,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:59:32,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 04:59:32,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153768621] [2024-11-22 04:59:32,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:59:32,165 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 04:59:32,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:59:32,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 04:59:32,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:59:32,166 INFO L87 Difference]: Start difference. First operand 873 states and 1255 transitions. Second operand has 5 states, 5 states have (on average 49.8) internal successors, (249), 5 states have internal predecessors, (249), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:59:32,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:59:32,459 INFO L93 Difference]: Finished difference Result 1580 states and 2262 transitions. [2024-11-22 04:59:32,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 04:59:32,460 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 49.8) internal successors, (249), 5 states have internal predecessors, (249), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 261 [2024-11-22 04:59:32,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:59:32,462 INFO L225 Difference]: With dead ends: 1580 [2024-11-22 04:59:32,462 INFO L226 Difference]: Without dead ends: 873 [2024-11-22 04:59:32,463 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:59:32,464 INFO L432 NwaCegarLoop]: 1107 mSDtfsCounter, 1058 mSDsluCounter, 1116 mSDsCounter, 0 mSdLazyCounter, 288 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1058 SdHoareTripleChecker+Valid, 2223 SdHoareTripleChecker+Invalid, 288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 04:59:32,464 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1058 Valid, 2223 Invalid, 288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 288 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 04:59:32,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 873 states. [2024-11-22 04:59:32,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 873 to 873. [2024-11-22 04:59:32,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 873 states, 868 states have (on average 1.4377880184331797) internal successors, (1248), 868 states have internal predecessors, (1248), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-22 04:59:32,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 873 states to 873 states and 1254 transitions. [2024-11-22 04:59:32,478 INFO L78 Accepts]: Start accepts. Automaton has 873 states and 1254 transitions. Word has length 261 [2024-11-22 04:59:32,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:59:32,479 INFO L471 AbstractCegarLoop]: Abstraction has 873 states and 1254 transitions. [2024-11-22 04:59:32,479 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 49.8) internal successors, (249), 5 states have internal predecessors, (249), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:59:32,479 INFO L276 IsEmpty]: Start isEmpty. Operand 873 states and 1254 transitions. [2024-11-22 04:59:32,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2024-11-22 04:59:32,480 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:59:32,480 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:59:32,481 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2024-11-22 04:59:32,481 INFO L396 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:59:32,481 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:59:32,481 INFO L85 PathProgramCache]: Analyzing trace with hash 831794034, now seen corresponding path program 1 times [2024-11-22 04:59:32,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:59:32,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391364404] [2024-11-22 04:59:32,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:59:32,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:59:32,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:59:33,192 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-22 04:59:33,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:59:33,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391364404] [2024-11-22 04:59:33,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391364404] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:59:33,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:59:33,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 04:59:33,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842288898] [2024-11-22 04:59:33,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:59:33,194 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 04:59:33,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:59:33,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 04:59:33,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:59:33,195 INFO L87 Difference]: Start difference. First operand 873 states and 1254 transitions. Second operand has 5 states, 5 states have (on average 50.0) internal successors, (250), 5 states have internal predecessors, (250), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:59:33,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:59:33,494 INFO L93 Difference]: Finished difference Result 1580 states and 2260 transitions. [2024-11-22 04:59:33,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 04:59:33,495 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 50.0) internal successors, (250), 5 states have internal predecessors, (250), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 262 [2024-11-22 04:59:33,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:59:33,497 INFO L225 Difference]: With dead ends: 1580 [2024-11-22 04:59:33,497 INFO L226 Difference]: Without dead ends: 873 [2024-11-22 04:59:33,498 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:59:33,498 INFO L432 NwaCegarLoop]: 1107 mSDtfsCounter, 2102 mSDsluCounter, 1109 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2102 SdHoareTripleChecker+Valid, 2216 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 04:59:33,499 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2102 Valid, 2216 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 286 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 04:59:33,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 873 states. [2024-11-22 04:59:33,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 873 to 873. [2024-11-22 04:59:33,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 873 states, 868 states have (on average 1.4366359447004609) internal successors, (1247), 868 states have internal predecessors, (1247), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-22 04:59:33,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 873 states to 873 states and 1253 transitions. [2024-11-22 04:59:33,512 INFO L78 Accepts]: Start accepts. Automaton has 873 states and 1253 transitions. Word has length 262 [2024-11-22 04:59:33,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:59:33,513 INFO L471 AbstractCegarLoop]: Abstraction has 873 states and 1253 transitions. [2024-11-22 04:59:33,513 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 50.0) internal successors, (250), 5 states have internal predecessors, (250), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:59:33,513 INFO L276 IsEmpty]: Start isEmpty. Operand 873 states and 1253 transitions. [2024-11-22 04:59:33,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2024-11-22 04:59:33,515 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:59:33,515 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:59:33,515 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2024-11-22 04:59:33,515 INFO L396 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:59:33,516 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:59:33,516 INFO L85 PathProgramCache]: Analyzing trace with hash -686818013, now seen corresponding path program 1 times [2024-11-22 04:59:33,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:59:33,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361003606] [2024-11-22 04:59:33,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:59:33,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:59:33,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:59:34,179 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-22 04:59:34,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:59:34,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361003606] [2024-11-22 04:59:34,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361003606] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:59:34,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:59:34,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 04:59:34,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618248574] [2024-11-22 04:59:34,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:59:34,181 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 04:59:34,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:59:34,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 04:59:34,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:59:34,182 INFO L87 Difference]: Start difference. First operand 873 states and 1253 transitions. Second operand has 5 states, 5 states have (on average 50.2) internal successors, (251), 5 states have internal predecessors, (251), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:59:34,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:59:34,430 INFO L93 Difference]: Finished difference Result 1580 states and 2258 transitions. [2024-11-22 04:59:34,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 04:59:34,431 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 50.2) internal successors, (251), 5 states have internal predecessors, (251), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 263 [2024-11-22 04:59:34,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:59:34,433 INFO L225 Difference]: With dead ends: 1580 [2024-11-22 04:59:34,433 INFO L226 Difference]: Without dead ends: 873 [2024-11-22 04:59:34,434 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:59:34,435 INFO L432 NwaCegarLoop]: 1107 mSDtfsCounter, 1056 mSDsluCounter, 1116 mSDsCounter, 0 mSdLazyCounter, 284 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1056 SdHoareTripleChecker+Valid, 2223 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 04:59:34,435 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1056 Valid, 2223 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 284 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 04:59:34,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 873 states. [2024-11-22 04:59:34,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 873 to 873. [2024-11-22 04:59:34,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 873 states, 868 states have (on average 1.435483870967742) internal successors, (1246), 868 states have internal predecessors, (1246), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-22 04:59:34,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 873 states to 873 states and 1252 transitions. [2024-11-22 04:59:34,452 INFO L78 Accepts]: Start accepts. Automaton has 873 states and 1252 transitions. Word has length 263 [2024-11-22 04:59:34,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:59:34,453 INFO L471 AbstractCegarLoop]: Abstraction has 873 states and 1252 transitions. [2024-11-22 04:59:34,453 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 50.2) internal successors, (251), 5 states have internal predecessors, (251), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:59:34,453 INFO L276 IsEmpty]: Start isEmpty. Operand 873 states and 1252 transitions. [2024-11-22 04:59:34,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2024-11-22 04:59:34,455 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:59:34,455 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:59:34,455 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2024-11-22 04:59:34,455 INFO L396 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:59:34,456 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:59:34,456 INFO L85 PathProgramCache]: Analyzing trace with hash -1134620559, now seen corresponding path program 1 times [2024-11-22 04:59:34,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:59:34,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384297824] [2024-11-22 04:59:34,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:59:34,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:59:34,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:59:35,139 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-22 04:59:35,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:59:35,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384297824] [2024-11-22 04:59:35,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1384297824] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:59:35,140 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:59:35,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 04:59:35,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267632301] [2024-11-22 04:59:35,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:59:35,141 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 04:59:35,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:59:35,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 04:59:35,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:59:35,144 INFO L87 Difference]: Start difference. First operand 873 states and 1252 transitions. Second operand has 5 states, 5 states have (on average 50.4) internal successors, (252), 5 states have internal predecessors, (252), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:59:35,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:59:35,494 INFO L93 Difference]: Finished difference Result 1580 states and 2256 transitions. [2024-11-22 04:59:35,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 04:59:35,495 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 50.4) internal successors, (252), 5 states have internal predecessors, (252), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 264 [2024-11-22 04:59:35,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:59:35,497 INFO L225 Difference]: With dead ends: 1580 [2024-11-22 04:59:35,497 INFO L226 Difference]: Without dead ends: 873 [2024-11-22 04:59:35,498 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:59:35,498 INFO L432 NwaCegarLoop]: 1107 mSDtfsCounter, 1055 mSDsluCounter, 1116 mSDsCounter, 0 mSdLazyCounter, 282 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1055 SdHoareTripleChecker+Valid, 2223 SdHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 04:59:35,498 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1055 Valid, 2223 Invalid, 282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 282 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 04:59:35,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 873 states. [2024-11-22 04:59:35,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 873 to 873. [2024-11-22 04:59:35,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 873 states, 868 states have (on average 1.4343317972350231) internal successors, (1245), 868 states have internal predecessors, (1245), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-22 04:59:35,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 873 states to 873 states and 1251 transitions. [2024-11-22 04:59:35,520 INFO L78 Accepts]: Start accepts. Automaton has 873 states and 1251 transitions. Word has length 264 [2024-11-22 04:59:35,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:59:35,521 INFO L471 AbstractCegarLoop]: Abstraction has 873 states and 1251 transitions. [2024-11-22 04:59:35,521 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 50.4) internal successors, (252), 5 states have internal predecessors, (252), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:59:35,521 INFO L276 IsEmpty]: Start isEmpty. Operand 873 states and 1251 transitions. [2024-11-22 04:59:35,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2024-11-22 04:59:35,522 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:59:35,522 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:59:35,523 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2024-11-22 04:59:35,523 INFO L396 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:59:35,524 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:59:35,524 INFO L85 PathProgramCache]: Analyzing trace with hash -443532188, now seen corresponding path program 1 times [2024-11-22 04:59:35,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:59:35,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558386386] [2024-11-22 04:59:35,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:59:35,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:59:35,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:59:36,143 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-22 04:59:36,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:59:36,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558386386] [2024-11-22 04:59:36,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558386386] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:59:36,144 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:59:36,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 04:59:36,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767824739] [2024-11-22 04:59:36,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:59:36,144 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 04:59:36,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:59:36,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 04:59:36,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:59:36,145 INFO L87 Difference]: Start difference. First operand 873 states and 1251 transitions. Second operand has 5 states, 5 states have (on average 50.6) internal successors, (253), 5 states have internal predecessors, (253), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:59:36,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:59:36,389 INFO L93 Difference]: Finished difference Result 1580 states and 2254 transitions. [2024-11-22 04:59:36,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 04:59:36,390 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 50.6) internal successors, (253), 5 states have internal predecessors, (253), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 265 [2024-11-22 04:59:36,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:59:36,391 INFO L225 Difference]: With dead ends: 1580 [2024-11-22 04:59:36,391 INFO L226 Difference]: Without dead ends: 873 [2024-11-22 04:59:36,392 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:59:36,392 INFO L432 NwaCegarLoop]: 1107 mSDtfsCounter, 2084 mSDsluCounter, 1109 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2084 SdHoareTripleChecker+Valid, 2216 SdHoareTripleChecker+Invalid, 280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 04:59:36,392 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2084 Valid, 2216 Invalid, 280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 280 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 04:59:36,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 873 states. [2024-11-22 04:59:36,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 873 to 873. [2024-11-22 04:59:36,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 873 states, 868 states have (on average 1.433179723502304) internal successors, (1244), 868 states have internal predecessors, (1244), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-22 04:59:36,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 873 states to 873 states and 1250 transitions. [2024-11-22 04:59:36,406 INFO L78 Accepts]: Start accepts. Automaton has 873 states and 1250 transitions. Word has length 265 [2024-11-22 04:59:36,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:59:36,407 INFO L471 AbstractCegarLoop]: Abstraction has 873 states and 1250 transitions. [2024-11-22 04:59:36,407 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 50.6) internal successors, (253), 5 states have internal predecessors, (253), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:59:36,407 INFO L276 IsEmpty]: Start isEmpty. Operand 873 states and 1250 transitions. [2024-11-22 04:59:36,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2024-11-22 04:59:36,408 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:59:36,408 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:59:36,409 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2024-11-22 04:59:36,409 INFO L396 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:59:36,409 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:59:36,409 INFO L85 PathProgramCache]: Analyzing trace with hash 2017300720, now seen corresponding path program 1 times [2024-11-22 04:59:36,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:59:36,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482245887] [2024-11-22 04:59:36,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:59:36,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:59:36,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:59:37,017 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-22 04:59:37,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:59:37,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482245887] [2024-11-22 04:59:37,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1482245887] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:59:37,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:59:37,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 04:59:37,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566599610] [2024-11-22 04:59:37,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:59:37,018 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 04:59:37,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:59:37,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 04:59:37,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:59:37,019 INFO L87 Difference]: Start difference. First operand 873 states and 1250 transitions. Second operand has 5 states, 5 states have (on average 50.8) internal successors, (254), 5 states have internal predecessors, (254), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:59:37,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:59:37,246 INFO L93 Difference]: Finished difference Result 1580 states and 2252 transitions. [2024-11-22 04:59:37,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 04:59:37,247 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 50.8) internal successors, (254), 5 states have internal predecessors, (254), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 266 [2024-11-22 04:59:37,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:59:37,249 INFO L225 Difference]: With dead ends: 1580 [2024-11-22 04:59:37,249 INFO L226 Difference]: Without dead ends: 873 [2024-11-22 04:59:37,250 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:59:37,250 INFO L432 NwaCegarLoop]: 1107 mSDtfsCounter, 1053 mSDsluCounter, 1116 mSDsCounter, 0 mSdLazyCounter, 278 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1053 SdHoareTripleChecker+Valid, 2223 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 04:59:37,251 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1053 Valid, 2223 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 278 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 04:59:37,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 873 states. [2024-11-22 04:59:37,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 873 to 873. [2024-11-22 04:59:37,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 873 states, 868 states have (on average 1.4320276497695852) internal successors, (1243), 868 states have internal predecessors, (1243), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-22 04:59:37,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 873 states to 873 states and 1249 transitions. [2024-11-22 04:59:37,268 INFO L78 Accepts]: Start accepts. Automaton has 873 states and 1249 transitions. Word has length 266 [2024-11-22 04:59:37,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:59:37,269 INFO L471 AbstractCegarLoop]: Abstraction has 873 states and 1249 transitions. [2024-11-22 04:59:37,269 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 50.8) internal successors, (254), 5 states have internal predecessors, (254), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:59:37,269 INFO L276 IsEmpty]: Start isEmpty. Operand 873 states and 1249 transitions. [2024-11-22 04:59:37,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2024-11-22 04:59:37,270 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:59:37,271 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:59:37,271 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2024-11-22 04:59:37,271 INFO L396 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:59:37,271 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:59:37,272 INFO L85 PathProgramCache]: Analyzing trace with hash 172169253, now seen corresponding path program 1 times [2024-11-22 04:59:37,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:59:37,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573486018] [2024-11-22 04:59:37,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:59:37,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:59:37,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:59:38,034 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-22 04:59:38,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:59:38,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573486018] [2024-11-22 04:59:38,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573486018] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:59:38,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:59:38,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 04:59:38,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107750592] [2024-11-22 04:59:38,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:59:38,036 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 04:59:38,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:59:38,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 04:59:38,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:59:38,038 INFO L87 Difference]: Start difference. First operand 873 states and 1249 transitions. Second operand has 5 states, 5 states have (on average 51.0) internal successors, (255), 5 states have internal predecessors, (255), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:59:38,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:59:38,323 INFO L93 Difference]: Finished difference Result 1580 states and 2250 transitions. [2024-11-22 04:59:38,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 04:59:38,324 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 51.0) internal successors, (255), 5 states have internal predecessors, (255), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 267 [2024-11-22 04:59:38,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:59:38,326 INFO L225 Difference]: With dead ends: 1580 [2024-11-22 04:59:38,326 INFO L226 Difference]: Without dead ends: 873 [2024-11-22 04:59:38,327 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:59:38,327 INFO L432 NwaCegarLoop]: 1107 mSDtfsCounter, 1052 mSDsluCounter, 1116 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1052 SdHoareTripleChecker+Valid, 2223 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 04:59:38,328 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1052 Valid, 2223 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 04:59:38,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 873 states. [2024-11-22 04:59:38,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 873 to 873. [2024-11-22 04:59:38,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 873 states, 868 states have (on average 1.4308755760368663) internal successors, (1242), 868 states have internal predecessors, (1242), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-22 04:59:38,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 873 states to 873 states and 1248 transitions. [2024-11-22 04:59:38,345 INFO L78 Accepts]: Start accepts. Automaton has 873 states and 1248 transitions. Word has length 267 [2024-11-22 04:59:38,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:59:38,346 INFO L471 AbstractCegarLoop]: Abstraction has 873 states and 1248 transitions. [2024-11-22 04:59:38,346 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 51.0) internal successors, (255), 5 states have internal predecessors, (255), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 04:59:38,346 INFO L276 IsEmpty]: Start isEmpty. Operand 873 states and 1248 transitions. [2024-11-22 04:59:38,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2024-11-22 04:59:38,348 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:59:38,348 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:59:38,349 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2024-11-22 04:59:38,349 INFO L396 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:59:38,349 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:59:38,349 INFO L85 PathProgramCache]: Analyzing trace with hash -979419921, now seen corresponding path program 1 times [2024-11-22 04:59:38,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:59:38,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883087990] [2024-11-22 04:59:38,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:59:38,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:59:38,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat