./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sw_sym_ex_v.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.sw_sym_ex_v.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 38bd35bc88609e3ab03fd0664ba55e28973f1f4c4d5b4f19ae2a936fbd22c96e --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 05:56:21,887 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 05:56:21,940 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-22 05:56:21,945 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 05:56:21,947 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 05:56:21,969 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 05:56:21,970 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 05:56:21,970 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 05:56:21,971 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 05:56:21,971 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 05:56:21,972 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 05:56:21,972 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 05:56:21,972 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 05:56:21,973 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 05:56:21,974 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 05:56:21,974 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 05:56:21,974 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 05:56:21,975 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 05:56:21,975 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 05:56:21,975 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 05:56:21,975 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 05:56:21,978 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 05:56:21,978 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 05:56:21,978 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 05:56:21,979 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 05:56:21,979 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 05:56:21,979 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 05:56:21,979 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 05:56:21,979 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 05:56:21,979 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 05:56:21,980 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 05:56:21,980 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 05:56:21,980 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 05:56:21,980 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 05:56:21,980 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 05:56:21,980 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 05:56:21,980 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 05:56:21,981 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 05:56:21,981 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 05:56:21,981 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 38bd35bc88609e3ab03fd0664ba55e28973f1f4c4d5b4f19ae2a936fbd22c96e [2024-11-22 05:56:22,232 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 05:56:22,256 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 05:56:22,258 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 05:56:22,260 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 05:56:22,260 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 05:56:22,261 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sw_sym_ex_v.c [2024-11-22 05:56:23,507 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 05:56:23,680 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 05:56:23,681 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sw_sym_ex_v.c [2024-11-22 05:56:23,690 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/32c8c52d1/a4c7a916838b4a4a9c3cd03659a26f35/FLAGde92fe06b [2024-11-22 05:56:23,700 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/32c8c52d1/a4c7a916838b4a4a9c3cd03659a26f35 [2024-11-22 05:56:23,702 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 05:56:23,703 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 05:56:23,704 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 05:56:23,704 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 05:56:23,708 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 05:56:23,709 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 05:56:23" (1/1) ... [2024-11-22 05:56:23,709 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@496a2359 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:56:23, skipping insertion in model container [2024-11-22 05:56:23,710 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 05:56:23" (1/1) ... [2024-11-22 05:56:23,745 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 05:56:23,877 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.sw_sym_ex_v.c[1251,1264] [2024-11-22 05:56:24,004 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 05:56:24,012 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 05:56:24,021 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.sw_sym_ex_v.c[1251,1264] [2024-11-22 05:56:24,090 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 05:56:24,104 INFO L204 MainTranslator]: Completed translation [2024-11-22 05:56:24,104 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:56:24 WrapperNode [2024-11-22 05:56:24,105 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 05:56:24,106 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 05:56:24,106 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 05:56:24,108 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 05:56:24,114 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:56:24" (1/1) ... [2024-11-22 05:56:24,135 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:56:24" (1/1) ... [2024-11-22 05:56:24,257 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1300 [2024-11-22 05:56:24,257 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 05:56:24,258 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 05:56:24,258 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 05:56:24,259 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 05:56:24,267 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:56:24" (1/1) ... [2024-11-22 05:56:24,268 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:56:24" (1/1) ... [2024-11-22 05:56:24,290 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:56:24" (1/1) ... [2024-11-22 05:56:24,349 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 05:56:24,349 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:56:24" (1/1) ... [2024-11-22 05:56:24,350 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:56:24" (1/1) ... [2024-11-22 05:56:24,380 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:56:24" (1/1) ... [2024-11-22 05:56:24,389 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:56:24" (1/1) ... [2024-11-22 05:56:24,411 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:56:24" (1/1) ... [2024-11-22 05:56:24,423 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:56:24" (1/1) ... [2024-11-22 05:56:24,447 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 05:56:24,448 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 05:56:24,448 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 05:56:24,448 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 05:56:24,449 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:56:24" (1/1) ... [2024-11-22 05:56:24,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 05:56:24,462 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 05:56:24,478 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 05:56:24,480 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 05:56:24,515 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 05:56:24,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 05:56:24,516 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 05:56:24,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 05:56:24,770 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 05:56:24,772 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 05:56:25,845 INFO L? ?]: Removed 798 outVars from TransFormulas that were not future-live. [2024-11-22 05:56:25,846 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 05:56:25,863 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 05:56:25,864 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-22 05:56:25,864 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 05:56:25 BoogieIcfgContainer [2024-11-22 05:56:25,864 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 05:56:25,867 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 05:56:25,867 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 05:56:25,871 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 05:56:25,871 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 05:56:23" (1/3) ... [2024-11-22 05:56:25,871 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cac0f24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 05:56:25, skipping insertion in model container [2024-11-22 05:56:25,872 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:56:24" (2/3) ... [2024-11-22 05:56:25,872 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cac0f24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 05:56:25, skipping insertion in model container [2024-11-22 05:56:25,872 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 05:56:25" (3/3) ... [2024-11-22 05:56:25,873 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.sw_sym_ex_v.c [2024-11-22 05:56:25,885 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 05:56:25,886 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-22 05:56:25,951 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 05:56:25,957 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;@fd32e71, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 05:56:25,957 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-22 05:56:25,962 INFO L276 IsEmpty]: Start isEmpty. Operand has 382 states, 380 states have (on average 1.4973684210526317) internal successors, (569), 381 states have internal predecessors, (569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:56:25,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-22 05:56:25,968 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 05:56:25,969 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 05:56:25,969 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 05:56:25,973 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 05:56:25,973 INFO L85 PathProgramCache]: Analyzing trace with hash -1356964072, now seen corresponding path program 1 times [2024-11-22 05:56:25,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 05:56:25,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211148058] [2024-11-22 05:56:25,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 05:56:25,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 05:56:26,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 05:56:26,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 05:56:26,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 05:56:26,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211148058] [2024-11-22 05:56:26,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211148058] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 05:56:26,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 05:56:26,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 05:56:26,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70372523] [2024-11-22 05:56:26,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 05:56:26,416 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 05:56:26,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 05:56:26,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 05:56:26,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 05:56:26,444 INFO L87 Difference]: Start difference. First operand has 382 states, 380 states have (on average 1.4973684210526317) internal successors, (569), 381 states have internal predecessors, (569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:56:26,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 05:56:26,543 INFO L93 Difference]: Finished difference Result 717 states and 1071 transitions. [2024-11-22 05:56:26,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 05:56:26,546 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2024-11-22 05:56:26,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 05:56:26,560 INFO L225 Difference]: With dead ends: 717 [2024-11-22 05:56:26,560 INFO L226 Difference]: Without dead ends: 381 [2024-11-22 05:56:26,564 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 05:56:26,568 INFO L432 NwaCegarLoop]: 563 mSDtfsCounter, 0 mSDsluCounter, 1120 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1683 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 05:56:26,569 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1683 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 05:56:26,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2024-11-22 05:56:26,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 381. [2024-11-22 05:56:26,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 381 states, 380 states have (on average 1.4921052631578948) internal successors, (567), 380 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:56:26,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 567 transitions. [2024-11-22 05:56:26,629 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 567 transitions. Word has length 37 [2024-11-22 05:56:26,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 05:56:26,630 INFO L471 AbstractCegarLoop]: Abstraction has 381 states and 567 transitions. [2024-11-22 05:56:26,630 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:56:26,630 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 567 transitions. [2024-11-22 05:56:26,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-22 05:56:26,631 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 05:56:26,631 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 05:56:26,631 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 05:56:26,631 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 05:56:26,632 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 05:56:26,632 INFO L85 PathProgramCache]: Analyzing trace with hash 885482089, now seen corresponding path program 1 times [2024-11-22 05:56:26,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 05:56:26,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329332477] [2024-11-22 05:56:26,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 05:56:26,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 05:56:26,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 05:56:26,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 05:56:26,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 05:56:26,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329332477] [2024-11-22 05:56:26,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [329332477] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 05:56:26,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 05:56:26,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 05:56:26,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165301053] [2024-11-22 05:56:26,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 05:56:26,766 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 05:56:26,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 05:56:26,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 05:56:26,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 05:56:26,768 INFO L87 Difference]: Start difference. First operand 381 states and 567 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:56:26,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 05:56:26,797 INFO L93 Difference]: Finished difference Result 718 states and 1069 transitions. [2024-11-22 05:56:26,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 05:56:26,798 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2024-11-22 05:56:26,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 05:56:26,799 INFO L225 Difference]: With dead ends: 718 [2024-11-22 05:56:26,801 INFO L226 Difference]: Without dead ends: 383 [2024-11-22 05:56:26,802 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 05:56:26,803 INFO L432 NwaCegarLoop]: 563 mSDtfsCounter, 0 mSDsluCounter, 1116 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1679 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 05:56:26,804 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1679 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 05:56:26,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2024-11-22 05:56:26,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 383. [2024-11-22 05:56:26,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 382 states have (on average 1.4895287958115184) internal successors, (569), 382 states have internal predecessors, (569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:56:26,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 569 transitions. [2024-11-22 05:56:26,821 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 569 transitions. Word has length 38 [2024-11-22 05:56:26,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 05:56:26,821 INFO L471 AbstractCegarLoop]: Abstraction has 383 states and 569 transitions. [2024-11-22 05:56:26,822 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:56:26,822 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 569 transitions. [2024-11-22 05:56:26,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-22 05:56:26,822 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 05:56:26,823 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 05:56:26,823 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 05:56:26,823 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 05:56:26,823 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 05:56:26,824 INFO L85 PathProgramCache]: Analyzing trace with hash 582175249, now seen corresponding path program 1 times [2024-11-22 05:56:26,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 05:56:26,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507144762] [2024-11-22 05:56:26,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 05:56:26,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 05:56:26,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 05:56:27,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 05:56:27,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 05:56:27,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507144762] [2024-11-22 05:56:27,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [507144762] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 05:56:27,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 05:56:27,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 05:56:27,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712298549] [2024-11-22 05:56:27,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 05:56:27,015 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 05:56:27,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 05:56:27,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 05:56:27,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 05:56:27,017 INFO L87 Difference]: Start difference. First operand 383 states and 569 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:56:27,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 05:56:27,094 INFO L93 Difference]: Finished difference Result 1027 states and 1528 transitions. [2024-11-22 05:56:27,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 05:56:27,095 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2024-11-22 05:56:27,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 05:56:27,097 INFO L225 Difference]: With dead ends: 1027 [2024-11-22 05:56:27,097 INFO L226 Difference]: Without dead ends: 690 [2024-11-22 05:56:27,098 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-22 05:56:27,100 INFO L432 NwaCegarLoop]: 552 mSDtfsCounter, 1449 mSDsluCounter, 1098 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1449 SdHoareTripleChecker+Valid, 1650 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 05:56:27,100 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1449 Valid, 1650 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 05:56:27,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 690 states. [2024-11-22 05:56:27,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 690 to 397. [2024-11-22 05:56:27,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 397 states, 396 states have (on average 1.4873737373737375) internal successors, (589), 396 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:56:27,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 589 transitions. [2024-11-22 05:56:27,116 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 589 transitions. Word has length 39 [2024-11-22 05:56:27,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 05:56:27,117 INFO L471 AbstractCegarLoop]: Abstraction has 397 states and 589 transitions. [2024-11-22 05:56:27,117 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:56:27,117 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 589 transitions. [2024-11-22 05:56:27,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2024-11-22 05:56:27,124 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 05:56:27,124 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 05:56:27,126 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 05:56:27,126 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 05:56:27,127 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 05:56:27,127 INFO L85 PathProgramCache]: Analyzing trace with hash -1451602872, now seen corresponding path program 1 times [2024-11-22 05:56:27,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 05:56:27,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267644772] [2024-11-22 05:56:27,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 05:56:27,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 05:56:27,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 05:56:28,465 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 05:56:28,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 05:56:28,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267644772] [2024-11-22 05:56:28,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [267644772] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 05:56:28,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 05:56:28,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 05:56:28,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944795803] [2024-11-22 05:56:28,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 05:56:28,468 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 05:56:28,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 05:56:28,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 05:56:28,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 05:56:28,469 INFO L87 Difference]: Start difference. First operand 397 states and 589 transitions. Second operand has 5 states, 5 states have (on average 41.2) internal successors, (206), 5 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:56:28,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 05:56:28,579 INFO L93 Difference]: Finished difference Result 1003 states and 1491 transitions. [2024-11-22 05:56:28,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 05:56:28,579 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 206 [2024-11-22 05:56:28,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 05:56:28,583 INFO L225 Difference]: With dead ends: 1003 [2024-11-22 05:56:28,584 INFO L226 Difference]: Without dead ends: 666 [2024-11-22 05:56:28,585 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-22 05:56:28,586 INFO L432 NwaCegarLoop]: 550 mSDtfsCounter, 1347 mSDsluCounter, 1097 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1347 SdHoareTripleChecker+Valid, 1647 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 05:56:28,588 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1347 Valid, 1647 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 05:56:28,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 666 states. [2024-11-22 05:56:28,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 666 to 448. [2024-11-22 05:56:28,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 448 states, 447 states have (on average 1.4809843400447427) internal successors, (662), 447 states have internal predecessors, (662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:56:28,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 448 states to 448 states and 662 transitions. [2024-11-22 05:56:28,597 INFO L78 Accepts]: Start accepts. Automaton has 448 states and 662 transitions. Word has length 206 [2024-11-22 05:56:28,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 05:56:28,597 INFO L471 AbstractCegarLoop]: Abstraction has 448 states and 662 transitions. [2024-11-22 05:56:28,597 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:56:28,597 INFO L276 IsEmpty]: Start isEmpty. Operand 448 states and 662 transitions. [2024-11-22 05:56:28,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2024-11-22 05:56:28,600 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 05:56:28,600 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 05:56:28,600 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 05:56:28,600 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 05:56:28,601 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 05:56:28,601 INFO L85 PathProgramCache]: Analyzing trace with hash -736690901, now seen corresponding path program 1 times [2024-11-22 05:56:28,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 05:56:28,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259210242] [2024-11-22 05:56:28,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 05:56:28,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 05:56:29,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 05:56:29,968 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 05:56:29,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 05:56:29,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259210242] [2024-11-22 05:56:29,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [259210242] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 05:56:29,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 05:56:29,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 05:56:29,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928916321] [2024-11-22 05:56:29,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 05:56:29,972 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 05:56:29,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 05:56:29,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 05:56:29,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 05:56:29,973 INFO L87 Difference]: Start difference. First operand 448 states and 662 transitions. Second operand has 5 states, 5 states have (on average 41.6) internal successors, (208), 5 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:56:30,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 05:56:30,073 INFO L93 Difference]: Finished difference Result 1003 states and 1489 transitions. [2024-11-22 05:56:30,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 05:56:30,074 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 208 [2024-11-22 05:56:30,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 05:56:30,077 INFO L225 Difference]: With dead ends: 1003 [2024-11-22 05:56:30,077 INFO L226 Difference]: Without dead ends: 666 [2024-11-22 05:56:30,078 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-22 05:56:30,078 INFO L432 NwaCegarLoop]: 549 mSDtfsCounter, 1281 mSDsluCounter, 1097 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1281 SdHoareTripleChecker+Valid, 1646 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 05:56:30,079 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1281 Valid, 1646 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 05:56:30,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 666 states. [2024-11-22 05:56:30,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 666 to 571. [2024-11-22 05:56:30,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 571 states, 570 states have (on average 1.4824561403508771) internal successors, (845), 570 states have internal predecessors, (845), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:56:30,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 845 transitions. [2024-11-22 05:56:30,090 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 845 transitions. Word has length 208 [2024-11-22 05:56:30,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 05:56:30,091 INFO L471 AbstractCegarLoop]: Abstraction has 571 states and 845 transitions. [2024-11-22 05:56:30,091 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:56:30,092 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 845 transitions. [2024-11-22 05:56:30,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2024-11-22 05:56:30,094 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 05:56:30,094 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 05:56:30,095 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 05:56:30,095 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 05:56:30,095 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 05:56:30,095 INFO L85 PathProgramCache]: Analyzing trace with hash -2057904229, now seen corresponding path program 1 times [2024-11-22 05:56:30,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 05:56:30,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537317701] [2024-11-22 05:56:30,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 05:56:30,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 05:56:30,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 05:56:31,179 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 05:56:31,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 05:56:31,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537317701] [2024-11-22 05:56:31,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537317701] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 05:56:31,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 05:56:31,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-22 05:56:31,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613619783] [2024-11-22 05:56:31,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 05:56:31,181 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 05:56:31,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 05:56:31,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 05:56:31,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-22 05:56:31,182 INFO L87 Difference]: Start difference. First operand 571 states and 845 transitions. Second operand has 7 states, 7 states have (on average 29.857142857142858) internal successors, (209), 7 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:56:31,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 05:56:31,299 INFO L93 Difference]: Finished difference Result 1011 states and 1500 transitions. [2024-11-22 05:56:31,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 05:56:31,300 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 29.857142857142858) internal successors, (209), 7 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 209 [2024-11-22 05:56:31,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 05:56:31,303 INFO L225 Difference]: With dead ends: 1011 [2024-11-22 05:56:31,304 INFO L226 Difference]: Without dead ends: 674 [2024-11-22 05:56:31,304 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-11-22 05:56:31,305 INFO L432 NwaCegarLoop]: 546 mSDtfsCounter, 1301 mSDsluCounter, 1905 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1301 SdHoareTripleChecker+Valid, 2451 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 05:56:31,305 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1301 Valid, 2451 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 05:56:31,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 674 states. [2024-11-22 05:56:31,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 674 to 574. [2024-11-22 05:56:31,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 574 states, 573 states have (on average 1.4816753926701571) internal successors, (849), 573 states have internal predecessors, (849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:56:31,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 574 states to 574 states and 849 transitions. [2024-11-22 05:56:31,315 INFO L78 Accepts]: Start accepts. Automaton has 574 states and 849 transitions. Word has length 209 [2024-11-22 05:56:31,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 05:56:31,316 INFO L471 AbstractCegarLoop]: Abstraction has 574 states and 849 transitions. [2024-11-22 05:56:31,316 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 29.857142857142858) internal successors, (209), 7 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:56:31,316 INFO L276 IsEmpty]: Start isEmpty. Operand 574 states and 849 transitions. [2024-11-22 05:56:31,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2024-11-22 05:56:31,317 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 05:56:31,317 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 05:56:31,318 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 05:56:31,318 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 05:56:31,318 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 05:56:31,318 INFO L85 PathProgramCache]: Analyzing trace with hash -1244200430, now seen corresponding path program 1 times [2024-11-22 05:56:31,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 05:56:31,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255241223] [2024-11-22 05:56:31,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 05:56:31,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 05:56:31,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 05:56:32,246 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 05:56:32,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 05:56:32,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255241223] [2024-11-22 05:56:32,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [255241223] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 05:56:32,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 05:56:32,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 05:56:32,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634652072] [2024-11-22 05:56:32,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 05:56:32,247 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 05:56:32,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 05:56:32,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 05:56:32,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 05:56:32,248 INFO L87 Difference]: Start difference. First operand 574 states and 849 transitions. Second operand has 5 states, 5 states have (on average 42.0) internal successors, (210), 5 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:56:32,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 05:56:32,324 INFO L93 Difference]: Finished difference Result 1070 states and 1586 transitions. [2024-11-22 05:56:32,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 05:56:32,325 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 210 [2024-11-22 05:56:32,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 05:56:32,327 INFO L225 Difference]: With dead ends: 1070 [2024-11-22 05:56:32,327 INFO L226 Difference]: Without dead ends: 668 [2024-11-22 05:56:32,328 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-22 05:56:32,328 INFO L432 NwaCegarLoop]: 549 mSDtfsCounter, 1311 mSDsluCounter, 1097 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1311 SdHoareTripleChecker+Valid, 1646 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 05:56:32,329 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1311 Valid, 1646 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 05:56:32,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 668 states. [2024-11-22 05:56:32,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 668 to 574. [2024-11-22 05:56:32,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 574 states, 573 states have (on average 1.4799301919720769) internal successors, (848), 573 states have internal predecessors, (848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:56:32,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 574 states to 574 states and 848 transitions. [2024-11-22 05:56:32,337 INFO L78 Accepts]: Start accepts. Automaton has 574 states and 848 transitions. Word has length 210 [2024-11-22 05:56:32,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 05:56:32,337 INFO L471 AbstractCegarLoop]: Abstraction has 574 states and 848 transitions. [2024-11-22 05:56:32,337 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:56:32,337 INFO L276 IsEmpty]: Start isEmpty. Operand 574 states and 848 transitions. [2024-11-22 05:56:32,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2024-11-22 05:56:32,339 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 05:56:32,339 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 05:56:32,339 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 05:56:32,339 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 05:56:32,340 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 05:56:32,340 INFO L85 PathProgramCache]: Analyzing trace with hash 746144786, now seen corresponding path program 1 times [2024-11-22 05:56:32,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 05:56:32,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705534814] [2024-11-22 05:56:32,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 05:56:32,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 05:56:32,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 05:56:33,328 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 05:56:33,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 05:56:33,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705534814] [2024-11-22 05:56:33,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705534814] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 05:56:33,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 05:56:33,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 05:56:33,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801224072] [2024-11-22 05:56:33,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 05:56:33,330 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 05:56:33,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 05:56:33,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 05:56:33,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 05:56:33,332 INFO L87 Difference]: Start difference. First operand 574 states and 848 transitions. Second operand has 5 states, 5 states have (on average 42.2) internal successors, (211), 5 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:56:33,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 05:56:33,410 INFO L93 Difference]: Finished difference Result 1038 states and 1537 transitions. [2024-11-22 05:56:33,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 05:56:33,411 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 211 [2024-11-22 05:56:33,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 05:56:33,413 INFO L225 Difference]: With dead ends: 1038 [2024-11-22 05:56:33,413 INFO L226 Difference]: Without dead ends: 668 [2024-11-22 05:56:33,413 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-22 05:56:33,414 INFO L432 NwaCegarLoop]: 549 mSDtfsCounter, 1292 mSDsluCounter, 1097 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1292 SdHoareTripleChecker+Valid, 1646 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 05:56:33,414 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1292 Valid, 1646 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 05:56:33,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 668 states. [2024-11-22 05:56:33,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 668 to 574. [2024-11-22 05:56:33,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 574 states, 573 states have (on average 1.4781849912739966) internal successors, (847), 573 states have internal predecessors, (847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:56:33,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 574 states to 574 states and 847 transitions. [2024-11-22 05:56:33,421 INFO L78 Accepts]: Start accepts. Automaton has 574 states and 847 transitions. Word has length 211 [2024-11-22 05:56:33,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 05:56:33,421 INFO L471 AbstractCegarLoop]: Abstraction has 574 states and 847 transitions. [2024-11-22 05:56:33,421 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:56:33,422 INFO L276 IsEmpty]: Start isEmpty. Operand 574 states and 847 transitions. [2024-11-22 05:56:33,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2024-11-22 05:56:33,423 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 05:56:33,423 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 05:56:33,423 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 05:56:33,423 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 05:56:33,424 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 05:56:33,424 INFO L85 PathProgramCache]: Analyzing trace with hash -451875766, now seen corresponding path program 1 times [2024-11-22 05:56:33,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 05:56:33,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732677741] [2024-11-22 05:56:33,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 05:56:33,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 05:56:33,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 05:56:34,263 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 05:56:34,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 05:56:34,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732677741] [2024-11-22 05:56:34,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [732677741] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 05:56:34,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 05:56:34,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-22 05:56:34,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179131637] [2024-11-22 05:56:34,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 05:56:34,265 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 05:56:34,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 05:56:34,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 05:56:34,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-22 05:56:34,266 INFO L87 Difference]: Start difference. First operand 574 states and 847 transitions. Second operand has 7 states, 7 states have (on average 30.285714285714285) internal successors, (212), 7 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:56:34,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 05:56:34,383 INFO L93 Difference]: Finished difference Result 1042 states and 1542 transitions. [2024-11-22 05:56:34,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 05:56:34,383 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 30.285714285714285) internal successors, (212), 7 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 212 [2024-11-22 05:56:34,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 05:56:34,385 INFO L225 Difference]: With dead ends: 1042 [2024-11-22 05:56:34,385 INFO L226 Difference]: Without dead ends: 676 [2024-11-22 05:56:34,386 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-11-22 05:56:34,386 INFO L432 NwaCegarLoop]: 546 mSDtfsCounter, 1312 mSDsluCounter, 2040 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1312 SdHoareTripleChecker+Valid, 2586 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 05:56:34,386 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1312 Valid, 2586 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 05:56:34,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 676 states. [2024-11-22 05:56:34,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 676 to 576. [2024-11-22 05:56:34,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 576 states, 575 states have (on average 1.4765217391304348) internal successors, (849), 575 states have internal predecessors, (849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:56:34,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 849 transitions. [2024-11-22 05:56:34,398 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 849 transitions. Word has length 212 [2024-11-22 05:56:34,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 05:56:34,398 INFO L471 AbstractCegarLoop]: Abstraction has 576 states and 849 transitions. [2024-11-22 05:56:34,398 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 30.285714285714285) internal successors, (212), 7 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:56:34,398 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 849 transitions. [2024-11-22 05:56:34,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2024-11-22 05:56:34,400 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 05:56:34,400 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 05:56:34,400 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 05:56:34,400 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 05:56:34,400 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 05:56:34,403 INFO L85 PathProgramCache]: Analyzing trace with hash -458312135, now seen corresponding path program 1 times [2024-11-22 05:56:34,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 05:56:34,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364100112] [2024-11-22 05:56:34,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 05:56:34,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 05:56:34,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 05:56:35,426 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 05:56:35,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 05:56:35,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364100112] [2024-11-22 05:56:35,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364100112] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 05:56:35,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 05:56:35,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 05:56:35,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052962843] [2024-11-22 05:56:35,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 05:56:35,427 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 05:56:35,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 05:56:35,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 05:56:35,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 05:56:35,428 INFO L87 Difference]: Start difference. First operand 576 states and 849 transitions. Second operand has 5 states, 5 states have (on average 42.6) internal successors, (213), 5 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:56:35,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 05:56:35,504 INFO L93 Difference]: Finished difference Result 1010 states and 1495 transitions. [2024-11-22 05:56:35,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 05:56:35,504 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 213 [2024-11-22 05:56:35,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 05:56:35,506 INFO L225 Difference]: With dead ends: 1010 [2024-11-22 05:56:35,506 INFO L226 Difference]: Without dead ends: 673 [2024-11-22 05:56:35,507 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 05:56:35,507 INFO L432 NwaCegarLoop]: 549 mSDtfsCounter, 1228 mSDsluCounter, 1093 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1228 SdHoareTripleChecker+Valid, 1642 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 05:56:35,508 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1228 Valid, 1642 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 05:56:35,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 673 states. [2024-11-22 05:56:35,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 673 to 671. [2024-11-22 05:56:35,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 671 states, 670 states have (on average 1.4776119402985075) internal successors, (990), 670 states have internal predecessors, (990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:56:35,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 671 states to 671 states and 990 transitions. [2024-11-22 05:56:35,517 INFO L78 Accepts]: Start accepts. Automaton has 671 states and 990 transitions. Word has length 213 [2024-11-22 05:56:35,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 05:56:35,517 INFO L471 AbstractCegarLoop]: Abstraction has 671 states and 990 transitions. [2024-11-22 05:56:35,517 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:56:35,517 INFO L276 IsEmpty]: Start isEmpty. Operand 671 states and 990 transitions. [2024-11-22 05:56:35,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2024-11-22 05:56:35,519 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 05:56:35,519 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 05:56:35,519 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-22 05:56:35,520 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 05:56:35,520 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 05:56:35,520 INFO L85 PathProgramCache]: Analyzing trace with hash 1340981493, now seen corresponding path program 1 times [2024-11-22 05:56:35,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 05:56:35,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987219073] [2024-11-22 05:56:35,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 05:56:35,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 05:56:35,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 05:56:36,319 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 05:56:36,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 05:56:36,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987219073] [2024-11-22 05:56:36,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987219073] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 05:56:36,319 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 05:56:36,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 05:56:36,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737721304] [2024-11-22 05:56:36,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 05:56:36,320 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 05:56:36,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 05:56:36,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 05:56:36,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 05:56:36,321 INFO L87 Difference]: Start difference. First operand 671 states and 990 transitions. Second operand has 5 states, 5 states have (on average 42.8) internal successors, (214), 5 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:56:36,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 05:56:36,397 INFO L93 Difference]: Finished difference Result 1038 states and 1535 transitions. [2024-11-22 05:56:36,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 05:56:36,397 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 214 [2024-11-22 05:56:36,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 05:56:36,399 INFO L225 Difference]: With dead ends: 1038 [2024-11-22 05:56:36,400 INFO L226 Difference]: Without dead ends: 671 [2024-11-22 05:56:36,400 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-22 05:56:36,401 INFO L432 NwaCegarLoop]: 549 mSDtfsCounter, 1238 mSDsluCounter, 1097 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1238 SdHoareTripleChecker+Valid, 1646 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 05:56:36,401 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1238 Valid, 1646 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 05:56:36,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 671 states. [2024-11-22 05:56:36,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 671 to 671. [2024-11-22 05:56:36,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 671 states, 670 states have (on average 1.4761194029850746) internal successors, (989), 670 states have internal predecessors, (989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:56:36,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 671 states to 671 states and 989 transitions. [2024-11-22 05:56:36,409 INFO L78 Accepts]: Start accepts. Automaton has 671 states and 989 transitions. Word has length 214 [2024-11-22 05:56:36,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 05:56:36,409 INFO L471 AbstractCegarLoop]: Abstraction has 671 states and 989 transitions. [2024-11-22 05:56:36,409 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:56:36,409 INFO L276 IsEmpty]: Start isEmpty. Operand 671 states and 989 transitions. [2024-11-22 05:56:36,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2024-11-22 05:56:36,411 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 05:56:36,411 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 05:56:36,411 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-22 05:56:36,411 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 05:56:36,411 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 05:56:36,411 INFO L85 PathProgramCache]: Analyzing trace with hash 1210162929, now seen corresponding path program 1 times [2024-11-22 05:56:36,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 05:56:36,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718474195] [2024-11-22 05:56:36,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 05:56:36,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 05:56:36,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 05:56:37,172 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 05:56:37,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 05:56:37,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718474195] [2024-11-22 05:56:37,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718474195] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 05:56:37,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 05:56:37,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-22 05:56:37,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729796259] [2024-11-22 05:56:37,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 05:56:37,173 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 05:56:37,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 05:56:37,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 05:56:37,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-22 05:56:37,174 INFO L87 Difference]: Start difference. First operand 671 states and 989 transitions. Second operand has 7 states, 7 states have (on average 30.714285714285715) internal successors, (215), 7 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:56:37,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 05:56:37,278 INFO L93 Difference]: Finished difference Result 1041 states and 1538 transitions. [2024-11-22 05:56:37,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 05:56:37,278 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 30.714285714285715) internal successors, (215), 7 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 215 [2024-11-22 05:56:37,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 05:56:37,280 INFO L225 Difference]: With dead ends: 1041 [2024-11-22 05:56:37,280 INFO L226 Difference]: Without dead ends: 678 [2024-11-22 05:56:37,281 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-11-22 05:56:37,281 INFO L432 NwaCegarLoop]: 546 mSDtfsCounter, 1256 mSDsluCounter, 1897 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1256 SdHoareTripleChecker+Valid, 2443 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 05:56:37,282 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1256 Valid, 2443 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 05:56:37,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 678 states. [2024-11-22 05:56:37,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 678 to 673. [2024-11-22 05:56:37,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 673 states, 672 states have (on average 1.474702380952381) internal successors, (991), 672 states have internal predecessors, (991), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:56:37,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 673 states to 673 states and 991 transitions. [2024-11-22 05:56:37,291 INFO L78 Accepts]: Start accepts. Automaton has 673 states and 991 transitions. Word has length 215 [2024-11-22 05:56:37,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 05:56:37,291 INFO L471 AbstractCegarLoop]: Abstraction has 673 states and 991 transitions. [2024-11-22 05:56:37,291 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 30.714285714285715) internal successors, (215), 7 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:56:37,292 INFO L276 IsEmpty]: Start isEmpty. Operand 673 states and 991 transitions. [2024-11-22 05:56:37,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2024-11-22 05:56:37,293 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 05:56:37,293 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 05:56:37,294 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-22 05:56:37,294 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 05:56:37,294 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 05:56:37,294 INFO L85 PathProgramCache]: Analyzing trace with hash 766167662, now seen corresponding path program 1 times [2024-11-22 05:56:37,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 05:56:37,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925464304] [2024-11-22 05:56:37,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 05:56:37,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 05:56:37,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 05:56:38,104 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 05:56:38,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 05:56:38,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925464304] [2024-11-22 05:56:38,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925464304] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 05:56:38,105 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 05:56:38,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-22 05:56:38,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892404655] [2024-11-22 05:56:38,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 05:56:38,106 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 05:56:38,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 05:56:38,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 05:56:38,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-22 05:56:38,106 INFO L87 Difference]: Start difference. First operand 673 states and 991 transitions. Second operand has 7 states, 7 states have (on average 30.857142857142858) internal successors, (216), 7 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:56:38,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 05:56:38,250 INFO L93 Difference]: Finished difference Result 1145 states and 1691 transitions. [2024-11-22 05:56:38,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 05:56:38,251 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 30.857142857142858) internal successors, (216), 7 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 216 [2024-11-22 05:56:38,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 05:56:38,253 INFO L225 Difference]: With dead ends: 1145 [2024-11-22 05:56:38,253 INFO L226 Difference]: Without dead ends: 720 [2024-11-22 05:56:38,254 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-11-22 05:56:38,254 INFO L432 NwaCegarLoop]: 545 mSDtfsCounter, 1406 mSDsluCounter, 2179 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1406 SdHoareTripleChecker+Valid, 2724 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 05:56:38,254 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1406 Valid, 2724 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 05:56:38,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 720 states. [2024-11-22 05:56:38,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 720 to 675. [2024-11-22 05:56:38,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 675 states, 674 states have (on average 1.4732937685459941) internal successors, (993), 674 states have internal predecessors, (993), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:56:38,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 675 states to 675 states and 993 transitions. [2024-11-22 05:56:38,268 INFO L78 Accepts]: Start accepts. Automaton has 675 states and 993 transitions. Word has length 216 [2024-11-22 05:56:38,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 05:56:38,268 INFO L471 AbstractCegarLoop]: Abstraction has 675 states and 993 transitions. [2024-11-22 05:56:38,269 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 30.857142857142858) internal successors, (216), 7 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:56:38,269 INFO L276 IsEmpty]: Start isEmpty. Operand 675 states and 993 transitions. [2024-11-22 05:56:38,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2024-11-22 05:56:38,270 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 05:56:38,271 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 05:56:38,271 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-22 05:56:38,271 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 05:56:38,272 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 05:56:38,272 INFO L85 PathProgramCache]: Analyzing trace with hash -1237679278, now seen corresponding path program 1 times [2024-11-22 05:56:38,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 05:56:38,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814490482] [2024-11-22 05:56:38,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 05:56:38,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 05:56:38,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 05:56:39,072 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 05:56:39,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 05:56:39,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814490482] [2024-11-22 05:56:39,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814490482] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 05:56:39,073 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 05:56:39,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 05:56:39,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479218366] [2024-11-22 05:56:39,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 05:56:39,073 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 05:56:39,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 05:56:39,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 05:56:39,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 05:56:39,074 INFO L87 Difference]: Start difference. First operand 675 states and 993 transitions. Second operand has 5 states, 5 states have (on average 43.2) internal successors, (216), 5 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:56:39,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 05:56:39,147 INFO L93 Difference]: Finished difference Result 1076 states and 1587 transitions. [2024-11-22 05:56:39,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 05:56:39,148 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 216 [2024-11-22 05:56:39,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 05:56:39,150 INFO L225 Difference]: With dead ends: 1076 [2024-11-22 05:56:39,150 INFO L226 Difference]: Without dead ends: 675 [2024-11-22 05:56:39,150 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-22 05:56:39,151 INFO L432 NwaCegarLoop]: 549 mSDtfsCounter, 1252 mSDsluCounter, 1097 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1252 SdHoareTripleChecker+Valid, 1646 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 05:56:39,151 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1252 Valid, 1646 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 05:56:39,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 675 states. [2024-11-22 05:56:39,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 675 to 675. [2024-11-22 05:56:39,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 675 states, 674 states have (on average 1.4718100890207715) internal successors, (992), 674 states have internal predecessors, (992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:56:39,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 675 states to 675 states and 992 transitions. [2024-11-22 05:56:39,159 INFO L78 Accepts]: Start accepts. Automaton has 675 states and 992 transitions. Word has length 216 [2024-11-22 05:56:39,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 05:56:39,159 INFO L471 AbstractCegarLoop]: Abstraction has 675 states and 992 transitions. [2024-11-22 05:56:39,159 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:56:39,159 INFO L276 IsEmpty]: Start isEmpty. Operand 675 states and 992 transitions. [2024-11-22 05:56:39,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2024-11-22 05:56:39,161 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 05:56:39,161 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 05:56:39,161 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-22 05:56:39,161 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 05:56:39,161 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 05:56:39,162 INFO L85 PathProgramCache]: Analyzing trace with hash -1984221122, now seen corresponding path program 1 times [2024-11-22 05:56:39,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 05:56:39,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824831037] [2024-11-22 05:56:39,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 05:56:39,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 05:56:39,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 05:56:39,867 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 05:56:39,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 05:56:39,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824831037] [2024-11-22 05:56:39,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1824831037] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 05:56:39,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 05:56:39,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-22 05:56:39,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079138435] [2024-11-22 05:56:39,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 05:56:39,868 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 05:56:39,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 05:56:39,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 05:56:39,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-22 05:56:39,869 INFO L87 Difference]: Start difference. First operand 675 states and 992 transitions. Second operand has 7 states, 7 states have (on average 31.0) internal successors, (217), 7 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:56:39,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 05:56:39,975 INFO L93 Difference]: Finished difference Result 1019 states and 1503 transitions. [2024-11-22 05:56:39,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 05:56:39,975 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 31.0) internal successors, (217), 7 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 217 [2024-11-22 05:56:39,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 05:56:39,977 INFO L225 Difference]: With dead ends: 1019 [2024-11-22 05:56:39,977 INFO L226 Difference]: Without dead ends: 682 [2024-11-22 05:56:39,978 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-22 05:56:39,978 INFO L432 NwaCegarLoop]: 546 mSDtfsCounter, 1229 mSDsluCounter, 2175 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1229 SdHoareTripleChecker+Valid, 2721 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 05:56:39,980 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1229 Valid, 2721 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 05:56:39,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 682 states. [2024-11-22 05:56:39,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 682 to 678. [2024-11-22 05:56:39,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 678 states, 677 states have (on average 1.4711964549483014) internal successors, (996), 677 states have internal predecessors, (996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:56:39,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 678 states to 678 states and 996 transitions. [2024-11-22 05:56:39,989 INFO L78 Accepts]: Start accepts. Automaton has 678 states and 996 transitions. Word has length 217 [2024-11-22 05:56:39,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 05:56:39,989 INFO L471 AbstractCegarLoop]: Abstraction has 678 states and 996 transitions. [2024-11-22 05:56:39,990 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 31.0) internal successors, (217), 7 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:56:39,990 INFO L276 IsEmpty]: Start isEmpty. Operand 678 states and 996 transitions. [2024-11-22 05:56:39,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2024-11-22 05:56:39,991 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 05:56:39,991 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 05:56:39,991 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-22 05:56:39,991 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 05:56:39,992 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 05:56:39,992 INFO L85 PathProgramCache]: Analyzing trace with hash 864700535, now seen corresponding path program 1 times [2024-11-22 05:56:39,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 05:56:39,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166750138] [2024-11-22 05:56:39,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 05:56:39,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 05:56:40,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 05:56:40,685 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 05:56:40,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 05:56:40,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166750138] [2024-11-22 05:56:40,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1166750138] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 05:56:40,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 05:56:40,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-22 05:56:40,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313965942] [2024-11-22 05:56:40,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 05:56:40,687 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 05:56:40,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 05:56:40,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 05:56:40,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-22 05:56:40,687 INFO L87 Difference]: Start difference. First operand 678 states and 996 transitions. Second operand has 7 states, 7 states have (on average 31.142857142857142) internal successors, (218), 7 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:56:40,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 05:56:40,786 INFO L93 Difference]: Finished difference Result 1084 states and 1596 transitions. [2024-11-22 05:56:40,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 05:56:40,787 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 31.142857142857142) internal successors, (218), 7 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 218 [2024-11-22 05:56:40,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 05:56:40,789 INFO L225 Difference]: With dead ends: 1084 [2024-11-22 05:56:40,789 INFO L226 Difference]: Without dead ends: 684 [2024-11-22 05:56:40,790 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-11-22 05:56:40,790 INFO L432 NwaCegarLoop]: 546 mSDtfsCounter, 1270 mSDsluCounter, 1895 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1270 SdHoareTripleChecker+Valid, 2441 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 05:56:40,791 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1270 Valid, 2441 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 05:56:40,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 684 states. [2024-11-22 05:56:40,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 684 to 680. [2024-11-22 05:56:40,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 680 states, 679 states have (on average 1.4698085419734905) internal successors, (998), 679 states have internal predecessors, (998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:56:40,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 680 states to 680 states and 998 transitions. [2024-11-22 05:56:40,801 INFO L78 Accepts]: Start accepts. Automaton has 680 states and 998 transitions. Word has length 218 [2024-11-22 05:56:40,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 05:56:40,802 INFO L471 AbstractCegarLoop]: Abstraction has 680 states and 998 transitions. [2024-11-22 05:56:40,802 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 31.142857142857142) internal successors, (218), 7 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:56:40,802 INFO L276 IsEmpty]: Start isEmpty. Operand 680 states and 998 transitions. [2024-11-22 05:56:40,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2024-11-22 05:56:40,803 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 05:56:40,804 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 05:56:40,804 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-22 05:56:40,804 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 05:56:40,804 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 05:56:40,804 INFO L85 PathProgramCache]: Analyzing trace with hash -750976054, now seen corresponding path program 1 times [2024-11-22 05:56:40,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 05:56:40,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908194297] [2024-11-22 05:56:40,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 05:56:40,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 05:56:41,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 05:56:41,502 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 05:56:41,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 05:56:41,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908194297] [2024-11-22 05:56:41,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [908194297] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 05:56:41,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 05:56:41,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-22 05:56:41,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255030182] [2024-11-22 05:56:41,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 05:56:41,504 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 05:56:41,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 05:56:41,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 05:56:41,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-22 05:56:41,504 INFO L87 Difference]: Start difference. First operand 680 states and 998 transitions. Second operand has 7 states, 7 states have (on average 31.285714285714285) internal successors, (219), 7 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:56:41,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 05:56:41,609 INFO L93 Difference]: Finished difference Result 1122 states and 1652 transitions. [2024-11-22 05:56:41,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 05:56:41,610 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 31.285714285714285) internal successors, (219), 7 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 219 [2024-11-22 05:56:41,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 05:56:41,612 INFO L225 Difference]: With dead ends: 1122 [2024-11-22 05:56:41,612 INFO L226 Difference]: Without dead ends: 726 [2024-11-22 05:56:41,613 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-11-22 05:56:41,614 INFO L432 NwaCegarLoop]: 545 mSDtfsCounter, 1387 mSDsluCounter, 2011 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1387 SdHoareTripleChecker+Valid, 2556 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 05:56:41,614 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1387 Valid, 2556 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 05:56:41,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 726 states. [2024-11-22 05:56:41,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 726 to 682. [2024-11-22 05:56:41,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 682 states, 681 states have (on average 1.4684287812041117) internal successors, (1000), 681 states have internal predecessors, (1000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:56:41,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 682 states to 682 states and 1000 transitions. [2024-11-22 05:56:41,624 INFO L78 Accepts]: Start accepts. Automaton has 682 states and 1000 transitions. Word has length 219 [2024-11-22 05:56:41,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 05:56:41,624 INFO L471 AbstractCegarLoop]: Abstraction has 682 states and 1000 transitions. [2024-11-22 05:56:41,625 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 31.285714285714285) internal successors, (219), 7 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:56:41,625 INFO L276 IsEmpty]: Start isEmpty. Operand 682 states and 1000 transitions. [2024-11-22 05:56:41,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2024-11-22 05:56:41,626 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 05:56:41,626 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 05:56:41,626 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-22 05:56:41,627 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 05:56:41,627 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 05:56:41,627 INFO L85 PathProgramCache]: Analyzing trace with hash 2125930342, now seen corresponding path program 1 times [2024-11-22 05:56:41,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 05:56:41,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053720953] [2024-11-22 05:56:41,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 05:56:41,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 05:56:41,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 05:56:42,460 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 05:56:42,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 05:56:42,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053720953] [2024-11-22 05:56:42,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1053720953] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 05:56:42,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 05:56:42,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-22 05:56:42,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299530505] [2024-11-22 05:56:42,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 05:56:42,461 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 05:56:42,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 05:56:42,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 05:56:42,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-22 05:56:42,462 INFO L87 Difference]: Start difference. First operand 682 states and 1000 transitions. Second operand has 7 states, 7 states have (on average 31.285714285714285) internal successors, (219), 7 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:56:42,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 05:56:42,562 INFO L93 Difference]: Finished difference Result 1090 states and 1605 transitions. [2024-11-22 05:56:42,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 05:56:42,562 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 31.285714285714285) internal successors, (219), 7 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 219 [2024-11-22 05:56:42,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 05:56:42,564 INFO L225 Difference]: With dead ends: 1090 [2024-11-22 05:56:42,564 INFO L226 Difference]: Without dead ends: 728 [2024-11-22 05:56:42,565 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-11-22 05:56:42,565 INFO L432 NwaCegarLoop]: 545 mSDtfsCounter, 1369 mSDsluCounter, 2011 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1369 SdHoareTripleChecker+Valid, 2556 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 05:56:42,565 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1369 Valid, 2556 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 05:56:42,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 728 states. [2024-11-22 05:56:42,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 728 to 684. [2024-11-22 05:56:42,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 684 states, 683 states have (on average 1.4670571010248903) internal successors, (1002), 683 states have internal predecessors, (1002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:56:42,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 684 states to 684 states and 1002 transitions. [2024-11-22 05:56:42,573 INFO L78 Accepts]: Start accepts. Automaton has 684 states and 1002 transitions. Word has length 219 [2024-11-22 05:56:42,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 05:56:42,573 INFO L471 AbstractCegarLoop]: Abstraction has 684 states and 1002 transitions. [2024-11-22 05:56:42,573 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 31.285714285714285) internal successors, (219), 7 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:56:42,574 INFO L276 IsEmpty]: Start isEmpty. Operand 684 states and 1002 transitions. [2024-11-22 05:56:42,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2024-11-22 05:56:42,576 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 05:56:42,576 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 05:56:42,576 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-22 05:56:42,577 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 05:56:42,577 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 05:56:42,577 INFO L85 PathProgramCache]: Analyzing trace with hash -372495870, now seen corresponding path program 1 times [2024-11-22 05:56:42,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 05:56:42,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279037178] [2024-11-22 05:56:42,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 05:56:42,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 05:56:42,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 05:56:43,386 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 05:56:43,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 05:56:43,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279037178] [2024-11-22 05:56:43,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1279037178] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 05:56:43,387 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 05:56:43,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-22 05:56:43,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671470062] [2024-11-22 05:56:43,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 05:56:43,388 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 05:56:43,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 05:56:43,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 05:56:43,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-22 05:56:43,389 INFO L87 Difference]: Start difference. First operand 684 states and 1002 transitions. Second operand has 7 states, 7 states have (on average 31.285714285714285) internal successors, (219), 7 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:56:43,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 05:56:43,518 INFO L93 Difference]: Finished difference Result 1067 states and 1571 transitions. [2024-11-22 05:56:43,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 05:56:43,519 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 31.285714285714285) internal successors, (219), 7 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 219 [2024-11-22 05:56:43,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 05:56:43,521 INFO L225 Difference]: With dead ends: 1067 [2024-11-22 05:56:43,521 INFO L226 Difference]: Without dead ends: 730 [2024-11-22 05:56:43,522 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-11-22 05:56:43,522 INFO L432 NwaCegarLoop]: 545 mSDtfsCounter, 1350 mSDsluCounter, 2095 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1350 SdHoareTripleChecker+Valid, 2640 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 05:56:43,523 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1350 Valid, 2640 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 05:56:43,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 730 states. [2024-11-22 05:56:43,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 730 to 690. [2024-11-22 05:56:43,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 690 states, 689 states have (on average 1.4658925979680697) internal successors, (1010), 689 states have internal predecessors, (1010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:56:43,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 690 states to 690 states and 1010 transitions. [2024-11-22 05:56:43,533 INFO L78 Accepts]: Start accepts. Automaton has 690 states and 1010 transitions. Word has length 219 [2024-11-22 05:56:43,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 05:56:43,534 INFO L471 AbstractCegarLoop]: Abstraction has 690 states and 1010 transitions. [2024-11-22 05:56:43,534 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 31.285714285714285) internal successors, (219), 7 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:56:43,534 INFO L276 IsEmpty]: Start isEmpty. Operand 690 states and 1010 transitions. [2024-11-22 05:56:43,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2024-11-22 05:56:43,535 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 05:56:43,535 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 05:56:43,535 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-22 05:56:43,535 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 05:56:43,536 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 05:56:43,536 INFO L85 PathProgramCache]: Analyzing trace with hash 1034544030, now seen corresponding path program 1 times [2024-11-22 05:56:43,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 05:56:43,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675674458] [2024-11-22 05:56:43,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 05:56:43,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 05:56:43,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 05:56:44,307 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 05:56:44,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 05:56:44,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675674458] [2024-11-22 05:56:44,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675674458] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 05:56:44,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [707010050] [2024-11-22 05:56:44,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 05:56:44,308 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 05:56:44,308 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 05:56:44,310 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 05:56:44,311 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 05:56:44,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 05:56:44,847 INFO L255 TraceCheckSpWp]: Trace formula consists of 1346 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-22 05:56:44,861 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 05:56:45,058 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 05:56:45,059 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 05:56:45,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [707010050] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 05:56:45,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 05:56:45,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2024-11-22 05:56:45,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610418206] [2024-11-22 05:56:45,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 05:56:45,060 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 05:56:45,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 05:56:45,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 05:56:45,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-22 05:56:45,061 INFO L87 Difference]: Start difference. First operand 690 states and 1010 transitions. Second operand has 6 states, 6 states have (on average 36.5) internal successors, (219), 6 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:56:45,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 05:56:45,239 INFO L93 Difference]: Finished difference Result 1300 states and 1904 transitions. [2024-11-22 05:56:45,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 05:56:45,240 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 36.5) internal successors, (219), 6 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 219 [2024-11-22 05:56:45,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 05:56:45,241 INFO L225 Difference]: With dead ends: 1300 [2024-11-22 05:56:45,241 INFO L226 Difference]: Without dead ends: 689 [2024-11-22 05:56:45,242 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-22 05:56:45,243 INFO L432 NwaCegarLoop]: 480 mSDtfsCounter, 1743 mSDsluCounter, 956 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1743 SdHoareTripleChecker+Valid, 1436 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 05:56:45,243 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1743 Valid, 1436 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 05:56:45,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 689 states. [2024-11-22 05:56:45,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 689 to 689. [2024-11-22 05:56:45,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 689 states, 688 states have (on average 1.4636627906976745) internal successors, (1007), 688 states have internal predecessors, (1007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:56:45,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 689 states to 689 states and 1007 transitions. [2024-11-22 05:56:45,255 INFO L78 Accepts]: Start accepts. Automaton has 689 states and 1007 transitions. Word has length 219 [2024-11-22 05:56:45,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 05:56:45,255 INFO L471 AbstractCegarLoop]: Abstraction has 689 states and 1007 transitions. [2024-11-22 05:56:45,255 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 36.5) internal successors, (219), 6 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:56:45,255 INFO L276 IsEmpty]: Start isEmpty. Operand 689 states and 1007 transitions. [2024-11-22 05:56:45,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2024-11-22 05:56:45,269 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 05:56:45,269 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 05:56:45,280 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 05:56:45,473 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 05:56:45,474 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 05:56:45,475 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 05:56:45,475 INFO L85 PathProgramCache]: Analyzing trace with hash -702625767, now seen corresponding path program 1 times [2024-11-22 05:56:45,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 05:56:45,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598969785] [2024-11-22 05:56:45,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 05:56:45,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 05:56:45,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 05:56:46,179 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 05:56:46,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 05:56:46,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598969785] [2024-11-22 05:56:46,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598969785] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 05:56:46,179 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 05:56:46,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 05:56:46,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773988094] [2024-11-22 05:56:46,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 05:56:46,180 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 05:56:46,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 05:56:46,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 05:56:46,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 05:56:46,180 INFO L87 Difference]: Start difference. First operand 689 states and 1007 transitions. Second operand has 5 states, 5 states have (on average 44.0) internal successors, (220), 5 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:56:46,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 05:56:46,251 INFO L93 Difference]: Finished difference Result 1207 states and 1766 transitions. [2024-11-22 05:56:46,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 05:56:46,252 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 44.0) internal successors, (220), 5 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 220 [2024-11-22 05:56:46,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 05:56:46,253 INFO L225 Difference]: With dead ends: 1207 [2024-11-22 05:56:46,254 INFO L226 Difference]: Without dead ends: 689 [2024-11-22 05:56:46,254 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-22 05:56:46,255 INFO L432 NwaCegarLoop]: 550 mSDtfsCounter, 1295 mSDsluCounter, 1097 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1295 SdHoareTripleChecker+Valid, 1647 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 05:56:46,255 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1295 Valid, 1647 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 05:56:46,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 689 states. [2024-11-22 05:56:46,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 689 to 689. [2024-11-22 05:56:46,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 689 states, 688 states have (on average 1.4622093023255813) internal successors, (1006), 688 states have internal predecessors, (1006), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:56:46,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 689 states to 689 states and 1006 transitions. [2024-11-22 05:56:46,262 INFO L78 Accepts]: Start accepts. Automaton has 689 states and 1006 transitions. Word has length 220 [2024-11-22 05:56:46,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 05:56:46,262 INFO L471 AbstractCegarLoop]: Abstraction has 689 states and 1006 transitions. [2024-11-22 05:56:46,262 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 44.0) internal successors, (220), 5 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:56:46,262 INFO L276 IsEmpty]: Start isEmpty. Operand 689 states and 1006 transitions. [2024-11-22 05:56:46,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2024-11-22 05:56:46,263 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 05:56:46,263 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 05:56:46,264 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-22 05:56:46,264 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 05:56:46,264 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 05:56:46,264 INFO L85 PathProgramCache]: Analyzing trace with hash -608140986, now seen corresponding path program 1 times [2024-11-22 05:56:46,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 05:56:46,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561608434] [2024-11-22 05:56:46,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 05:56:46,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 05:56:46,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 05:56:47,055 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 05:56:47,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 05:56:47,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561608434] [2024-11-22 05:56:47,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561608434] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 05:56:47,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 05:56:47,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 05:56:47,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371338965] [2024-11-22 05:56:47,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 05:56:47,056 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 05:56:47,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 05:56:47,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 05:56:47,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-22 05:56:47,056 INFO L87 Difference]: Start difference. First operand 689 states and 1006 transitions. Second operand has 6 states, 6 states have (on average 36.833333333333336) internal successors, (221), 6 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:56:47,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 05:56:47,156 INFO L93 Difference]: Finished difference Result 1171 states and 1713 transitions. [2024-11-22 05:56:47,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 05:56:47,156 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 36.833333333333336) internal successors, (221), 6 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 221 [2024-11-22 05:56:47,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 05:56:47,158 INFO L225 Difference]: With dead ends: 1171 [2024-11-22 05:56:47,158 INFO L226 Difference]: Without dead ends: 687 [2024-11-22 05:56:47,159 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-22 05:56:47,159 INFO L432 NwaCegarLoop]: 550 mSDtfsCounter, 1276 mSDsluCounter, 1643 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1276 SdHoareTripleChecker+Valid, 2193 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 05:56:47,160 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1276 Valid, 2193 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 05:56:47,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 687 states. [2024-11-22 05:56:47,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 687 to 687. [2024-11-22 05:56:47,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 687 states, 686 states have (on average 1.4620991253644315) internal successors, (1003), 686 states have internal predecessors, (1003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:56:47,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 687 states to 687 states and 1003 transitions. [2024-11-22 05:56:47,167 INFO L78 Accepts]: Start accepts. Automaton has 687 states and 1003 transitions. Word has length 221 [2024-11-22 05:56:47,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 05:56:47,168 INFO L471 AbstractCegarLoop]: Abstraction has 687 states and 1003 transitions. [2024-11-22 05:56:47,168 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 36.833333333333336) internal successors, (221), 6 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:56:47,168 INFO L276 IsEmpty]: Start isEmpty. Operand 687 states and 1003 transitions. [2024-11-22 05:56:47,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2024-11-22 05:56:47,169 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 05:56:47,169 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 05:56:47,169 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-22 05:56:47,169 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 05:56:47,169 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 05:56:47,169 INFO L85 PathProgramCache]: Analyzing trace with hash 2144206562, now seen corresponding path program 1 times [2024-11-22 05:56:47,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 05:56:47,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163608292] [2024-11-22 05:56:47,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 05:56:47,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 05:56:47,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 05:56:48,479 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 05:56:48,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 05:56:48,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163608292] [2024-11-22 05:56:48,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [163608292] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 05:56:48,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [780871490] [2024-11-22 05:56:48,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 05:56:48,480 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 05:56:48,481 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 05:56:48,482 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 05:56:48,483 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-22 05:56:49,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 05:56:49,092 INFO L255 TraceCheckSpWp]: Trace formula consists of 1348 conjuncts, 57 conjuncts are in the unsatisfiable core [2024-11-22 05:56:49,099 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 05:56:49,783 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 05:56:49,784 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 05:56:50,680 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 05:56:50,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [780871490] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 05:56:50,681 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 05:56:50,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 14, 11] total 31 [2024-11-22 05:56:50,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021307410] [2024-11-22 05:56:50,681 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 05:56:50,682 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-11-22 05:56:50,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 05:56:50,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-11-22 05:56:50,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=794, Unknown=0, NotChecked=0, Total=930 [2024-11-22 05:56:50,684 INFO L87 Difference]: Start difference. First operand 687 states and 1003 transitions. Second operand has 31 states, 31 states have (on average 20.93548387096774) internal successors, (649), 31 states have internal predecessors, (649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:56:51,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 05:56:51,778 INFO L93 Difference]: Finished difference Result 2008 states and 2931 transitions. [2024-11-22 05:56:51,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-22 05:56:51,778 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 20.93548387096774) internal successors, (649), 31 states have internal predecessors, (649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 221 [2024-11-22 05:56:51,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 05:56:51,782 INFO L225 Difference]: With dead ends: 2008 [2024-11-22 05:56:51,782 INFO L226 Difference]: Without dead ends: 1396 [2024-11-22 05:56:51,783 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 459 GetRequests, 422 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 363 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=224, Invalid=1258, Unknown=0, NotChecked=0, Total=1482 [2024-11-22 05:56:51,784 INFO L432 NwaCegarLoop]: 901 mSDtfsCounter, 7542 mSDsluCounter, 13840 mSDsCounter, 0 mSdLazyCounter, 1907 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7542 SdHoareTripleChecker+Valid, 14741 SdHoareTripleChecker+Invalid, 1911 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1907 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-22 05:56:51,784 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7542 Valid, 14741 Invalid, 1911 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1907 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-22 05:56:51,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1396 states. [2024-11-22 05:56:51,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1396 to 1016. [2024-11-22 05:56:51,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1016 states, 1015 states have (on average 1.4532019704433496) internal successors, (1475), 1015 states have internal predecessors, (1475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:56:51,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1016 states to 1016 states and 1475 transitions. [2024-11-22 05:56:51,796 INFO L78 Accepts]: Start accepts. Automaton has 1016 states and 1475 transitions. Word has length 221 [2024-11-22 05:56:51,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 05:56:51,796 INFO L471 AbstractCegarLoop]: Abstraction has 1016 states and 1475 transitions. [2024-11-22 05:56:51,797 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 20.93548387096774) internal successors, (649), 31 states have internal predecessors, (649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:56:51,797 INFO L276 IsEmpty]: Start isEmpty. Operand 1016 states and 1475 transitions. [2024-11-22 05:56:51,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2024-11-22 05:56:51,798 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 05:56:51,798 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 05:56:51,809 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-22 05:56:52,001 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-11-22 05:56:52,002 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 05:56:52,002 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 05:56:52,002 INFO L85 PathProgramCache]: Analyzing trace with hash -1886729116, now seen corresponding path program 1 times [2024-11-22 05:56:52,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 05:56:52,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252809685] [2024-11-22 05:56:52,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 05:56:52,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 05:56:52,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 05:56:52,384 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 05:56:52,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 05:56:52,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252809685] [2024-11-22 05:56:52,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1252809685] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 05:56:52,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 05:56:52,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 05:56:52,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881786683] [2024-11-22 05:56:52,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 05:56:52,385 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 05:56:52,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 05:56:52,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 05:56:52,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 05:56:52,385 INFO L87 Difference]: Start difference. First operand 1016 states and 1475 transitions. Second operand has 5 states, 5 states have (on average 44.4) internal successors, (222), 5 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:56:52,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 05:56:52,449 INFO L93 Difference]: Finished difference Result 1645 states and 2394 transitions. [2024-11-22 05:56:52,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 05:56:52,450 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 222 [2024-11-22 05:56:52,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 05:56:52,453 INFO L225 Difference]: With dead ends: 1645 [2024-11-22 05:56:52,453 INFO L226 Difference]: Without dead ends: 1031 [2024-11-22 05:56:52,455 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-22 05:56:52,456 INFO L432 NwaCegarLoop]: 552 mSDtfsCounter, 1405 mSDsluCounter, 1099 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1405 SdHoareTripleChecker+Valid, 1651 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 05:56:52,456 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1405 Valid, 1651 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 05:56:52,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1031 states. [2024-11-22 05:56:52,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1031 to 1013. [2024-11-22 05:56:52,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1013 states, 1012 states have (on average 1.4515810276679841) internal successors, (1469), 1012 states have internal predecessors, (1469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:56:52,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1013 states to 1013 states and 1469 transitions. [2024-11-22 05:56:52,474 INFO L78 Accepts]: Start accepts. Automaton has 1013 states and 1469 transitions. Word has length 222 [2024-11-22 05:56:52,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 05:56:52,475 INFO L471 AbstractCegarLoop]: Abstraction has 1013 states and 1469 transitions. [2024-11-22 05:56:52,475 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:56:52,475 INFO L276 IsEmpty]: Start isEmpty. Operand 1013 states and 1469 transitions. [2024-11-22 05:56:52,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2024-11-22 05:56:52,476 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 05:56:52,476 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 05:56:52,476 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-22 05:56:52,477 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 05:56:52,477 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 05:56:52,477 INFO L85 PathProgramCache]: Analyzing trace with hash -786296213, now seen corresponding path program 1 times [2024-11-22 05:56:52,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 05:56:52,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462601950] [2024-11-22 05:56:52,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 05:56:52,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 05:56:52,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 05:56:52,843 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 05:56:52,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 05:56:52,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462601950] [2024-11-22 05:56:52,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1462601950] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 05:56:52,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 05:56:52,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 05:56:52,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600823207] [2024-11-22 05:56:52,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 05:56:52,844 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 05:56:52,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 05:56:52,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 05:56:52,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-22 05:56:52,844 INFO L87 Difference]: Start difference. First operand 1013 states and 1469 transitions. Second operand has 6 states, 6 states have (on average 37.0) internal successors, (222), 6 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:56:52,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 05:56:52,907 INFO L93 Difference]: Finished difference Result 1350 states and 1970 transitions. [2024-11-22 05:56:52,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 05:56:52,907 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 37.0) internal successors, (222), 6 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 222 [2024-11-22 05:56:52,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 05:56:52,909 INFO L225 Difference]: With dead ends: 1350 [2024-11-22 05:56:52,909 INFO L226 Difference]: Without dead ends: 735 [2024-11-22 05:56:52,910 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-22 05:56:52,910 INFO L432 NwaCegarLoop]: 551 mSDtfsCounter, 1375 mSDsluCounter, 1641 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1375 SdHoareTripleChecker+Valid, 2192 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 05:56:52,910 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1375 Valid, 2192 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 05:56:52,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 735 states. [2024-11-22 05:56:52,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 735 to 735. [2024-11-22 05:56:52,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 735 states, 734 states have (on average 1.4591280653950953) internal successors, (1071), 734 states have internal predecessors, (1071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:56:52,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 735 states to 735 states and 1071 transitions. [2024-11-22 05:56:52,918 INFO L78 Accepts]: Start accepts. Automaton has 735 states and 1071 transitions. Word has length 222 [2024-11-22 05:56:52,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 05:56:52,918 INFO L471 AbstractCegarLoop]: Abstraction has 735 states and 1071 transitions. [2024-11-22 05:56:52,919 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 37.0) internal successors, (222), 6 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:56:52,919 INFO L276 IsEmpty]: Start isEmpty. Operand 735 states and 1071 transitions. [2024-11-22 05:56:52,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 389 [2024-11-22 05:56:52,920 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 05:56:52,920 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 05:56:52,920 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-22 05:56:52,920 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 05:56:52,921 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 05:56:52,921 INFO L85 PathProgramCache]: Analyzing trace with hash 1862192727, now seen corresponding path program 1 times [2024-11-22 05:56:52,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 05:56:52,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258474245] [2024-11-22 05:56:52,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 05:56:52,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 05:56:54,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 05:56:55,823 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 191 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 05:56:55,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 05:56:55,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258474245] [2024-11-22 05:56:55,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258474245] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 05:56:55,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 05:56:55,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-22 05:56:55,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874549422] [2024-11-22 05:56:55,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 05:56:55,824 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-22 05:56:55,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 05:56:55,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-22 05:56:55,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-22 05:56:55,826 INFO L87 Difference]: Start difference. First operand 735 states and 1071 transitions. Second operand has 9 states, 9 states have (on average 43.111111111111114) internal successors, (388), 9 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:56:56,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 05:56:56,185 INFO L93 Difference]: Finished difference Result 2012 states and 2974 transitions. [2024-11-22 05:56:56,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-22 05:56:56,186 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 43.111111111111114) internal successors, (388), 9 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 388 [2024-11-22 05:56:56,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 05:56:56,190 INFO L225 Difference]: With dead ends: 2012 [2024-11-22 05:56:56,190 INFO L226 Difference]: Without dead ends: 1675 [2024-11-22 05:56:56,191 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2024-11-22 05:56:56,191 INFO L432 NwaCegarLoop]: 919 mSDtfsCounter, 1721 mSDsluCounter, 4986 mSDsCounter, 0 mSdLazyCounter, 626 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1721 SdHoareTripleChecker+Valid, 5905 SdHoareTripleChecker+Invalid, 627 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 626 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 05:56:56,192 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1721 Valid, 5905 Invalid, 627 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 626 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 05:56:56,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1675 states. [2024-11-22 05:56:56,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1675 to 1089. [2024-11-22 05:56:56,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1089 states, 1088 states have (on average 1.4678308823529411) internal successors, (1597), 1088 states have internal predecessors, (1597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:56:56,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1089 states to 1089 states and 1597 transitions. [2024-11-22 05:56:56,208 INFO L78 Accepts]: Start accepts. Automaton has 1089 states and 1597 transitions. Word has length 388 [2024-11-22 05:56:56,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 05:56:56,209 INFO L471 AbstractCegarLoop]: Abstraction has 1089 states and 1597 transitions. [2024-11-22 05:56:56,210 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 43.111111111111114) internal successors, (388), 9 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:56:56,210 INFO L276 IsEmpty]: Start isEmpty. Operand 1089 states and 1597 transitions. [2024-11-22 05:56:56,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2024-11-22 05:56:56,211 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 05:56:56,212 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 05:56:56,212 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-22 05:56:56,212 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 05:56:56,212 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 05:56:56,212 INFO L85 PathProgramCache]: Analyzing trace with hash 246447038, now seen corresponding path program 1 times [2024-11-22 05:56:56,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 05:56:56,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353755837] [2024-11-22 05:56:56,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 05:56:56,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 05:56:58,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 05:57:00,731 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 162 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 05:57:00,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 05:57:00,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353755837] [2024-11-22 05:57:00,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1353755837] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 05:57:00,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1198970813] [2024-11-22 05:57:00,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 05:57:00,732 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 05:57:00,732 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 05:57:00,733 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 05:57:00,734 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-22 05:57:01,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 05:57:01,680 INFO L255 TraceCheckSpWp]: Trace formula consists of 2475 conjuncts, 73 conjuncts are in the unsatisfiable core [2024-11-22 05:57:01,688 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 05:57:02,654 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 141 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 05:57:02,654 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 05:57:04,001 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 140 proven. 52 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 05:57:04,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1198970813] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 05:57:04,001 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 05:57:04,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 15] total 37 [2024-11-22 05:57:04,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245191165] [2024-11-22 05:57:04,001 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 05:57:04,002 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2024-11-22 05:57:04,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 05:57:04,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2024-11-22 05:57:04,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=156, Invalid=1176, Unknown=0, NotChecked=0, Total=1332 [2024-11-22 05:57:04,003 INFO L87 Difference]: Start difference. First operand 1089 states and 1597 transitions. Second operand has 37 states, 37 states have (on average 24.405405405405407) internal successors, (903), 37 states have internal predecessors, (903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:57:06,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 05:57:06,470 INFO L93 Difference]: Finished difference Result 2911 states and 4313 transitions. [2024-11-22 05:57:06,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2024-11-22 05:57:06,471 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 37 states have (on average 24.405405405405407) internal successors, (903), 37 states have internal predecessors, (903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 389 [2024-11-22 05:57:06,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 05:57:06,478 INFO L225 Difference]: With dead ends: 2911 [2024-11-22 05:57:06,478 INFO L226 Difference]: Without dead ends: 2243 [2024-11-22 05:57:06,481 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 846 GetRequests, 757 SyntacticMatches, 0 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2091 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=1450, Invalid=6740, Unknown=0, NotChecked=0, Total=8190 [2024-11-22 05:57:06,481 INFO L432 NwaCegarLoop]: 887 mSDtfsCounter, 12976 mSDsluCounter, 16041 mSDsCounter, 0 mSdLazyCounter, 2579 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12976 SdHoareTripleChecker+Valid, 16928 SdHoareTripleChecker+Invalid, 2627 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 2579 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-22 05:57:06,481 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12976 Valid, 16928 Invalid, 2627 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 2579 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-22 05:57:06,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2243 states. [2024-11-22 05:57:06,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2243 to 1253. [2024-11-22 05:57:06,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1253 states, 1252 states have (on average 1.4640575079872205) internal successors, (1833), 1252 states have internal predecessors, (1833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:57:06,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1253 states to 1253 states and 1833 transitions. [2024-11-22 05:57:06,496 INFO L78 Accepts]: Start accepts. Automaton has 1253 states and 1833 transitions. Word has length 389 [2024-11-22 05:57:06,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 05:57:06,497 INFO L471 AbstractCegarLoop]: Abstraction has 1253 states and 1833 transitions. [2024-11-22 05:57:06,497 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 24.405405405405407) internal successors, (903), 37 states have internal predecessors, (903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:57:06,497 INFO L276 IsEmpty]: Start isEmpty. Operand 1253 states and 1833 transitions. [2024-11-22 05:57:06,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 392 [2024-11-22 05:57:06,499 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 05:57:06,499 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 05:57:06,514 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-22 05:57:06,700 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 05:57:06,700 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 05:57:06,700 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 05:57:06,700 INFO L85 PathProgramCache]: Analyzing trace with hash 3502721, now seen corresponding path program 1 times [2024-11-22 05:57:06,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 05:57:06,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117761098] [2024-11-22 05:57:06,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 05:57:06,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 05:57:08,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 05:57:11,642 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 146 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 05:57:11,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 05:57:11,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117761098] [2024-11-22 05:57:11,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2117761098] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 05:57:11,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [425907975] [2024-11-22 05:57:11,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 05:57:11,643 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 05:57:11,643 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 05:57:11,644 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 05:57:11,645 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-22 05:57:12,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 05:57:12,728 INFO L255 TraceCheckSpWp]: Trace formula consists of 2479 conjuncts, 105 conjuncts are in the unsatisfiable core [2024-11-22 05:57:12,741 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 05:57:13,422 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 125 proven. 67 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 05:57:13,423 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 05:57:14,934 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 125 proven. 67 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 05:57:14,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [425907975] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 05:57:14,934 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 05:57:14,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 14, 14] total 37 [2024-11-22 05:57:14,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187382226] [2024-11-22 05:57:14,935 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 05:57:14,935 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2024-11-22 05:57:14,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 05:57:14,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2024-11-22 05:57:14,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=196, Invalid=1136, Unknown=0, NotChecked=0, Total=1332 [2024-11-22 05:57:14,937 INFO L87 Difference]: Start difference. First operand 1253 states and 1833 transitions. Second operand has 37 states, 37 states have (on average 25.37837837837838) internal successors, (939), 37 states have internal predecessors, (939), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:57:17,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 05:57:17,685 INFO L93 Difference]: Finished difference Result 4097 states and 6052 transitions. [2024-11-22 05:57:17,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2024-11-22 05:57:17,686 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 37 states have (on average 25.37837837837838) internal successors, (939), 37 states have internal predecessors, (939), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 391 [2024-11-22 05:57:17,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 05:57:17,694 INFO L225 Difference]: With dead ends: 4097 [2024-11-22 05:57:17,694 INFO L226 Difference]: Without dead ends: 3265 [2024-11-22 05:57:17,696 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 863 GetRequests, 760 SyntacticMatches, 0 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3140 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=1781, Invalid=9139, Unknown=0, NotChecked=0, Total=10920 [2024-11-22 05:57:17,697 INFO L432 NwaCegarLoop]: 921 mSDtfsCounter, 18493 mSDsluCounter, 17479 mSDsCounter, 0 mSdLazyCounter, 2316 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18493 SdHoareTripleChecker+Valid, 18400 SdHoareTripleChecker+Invalid, 2363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 2316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-22 05:57:17,697 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [18493 Valid, 18400 Invalid, 2363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 2316 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-22 05:57:17,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3265 states. [2024-11-22 05:57:17,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3265 to 1851. [2024-11-22 05:57:17,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1851 states, 1850 states have (on average 1.467027027027027) internal successors, (2714), 1850 states have internal predecessors, (2714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:57:17,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1851 states to 1851 states and 2714 transitions. [2024-11-22 05:57:17,721 INFO L78 Accepts]: Start accepts. Automaton has 1851 states and 2714 transitions. Word has length 391 [2024-11-22 05:57:17,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 05:57:17,721 INFO L471 AbstractCegarLoop]: Abstraction has 1851 states and 2714 transitions. [2024-11-22 05:57:17,721 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 25.37837837837838) internal successors, (939), 37 states have internal predecessors, (939), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:57:17,721 INFO L276 IsEmpty]: Start isEmpty. Operand 1851 states and 2714 transitions. [2024-11-22 05:57:17,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2024-11-22 05:57:17,723 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 05:57:17,723 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 05:57:17,738 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-22 05:57:17,927 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-11-22 05:57:17,928 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 05:57:17,929 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 05:57:17,929 INFO L85 PathProgramCache]: Analyzing trace with hash 567292292, now seen corresponding path program 1 times [2024-11-22 05:57:17,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 05:57:17,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864115079] [2024-11-22 05:57:17,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 05:57:17,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 05:57:20,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 05:57:23,481 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 109 proven. 85 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 05:57:23,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 05:57:23,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864115079] [2024-11-22 05:57:23,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [864115079] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 05:57:23,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1189967534] [2024-11-22 05:57:23,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 05:57:23,482 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 05:57:23,482 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 05:57:23,483 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 05:57:23,484 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-22 05:57:24,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 05:57:24,457 INFO L255 TraceCheckSpWp]: Trace formula consists of 2483 conjuncts, 43 conjuncts are in the unsatisfiable core [2024-11-22 05:57:24,464 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 05:57:25,430 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 66 proven. 128 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 05:57:25,430 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 05:57:25,901 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 158 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-22 05:57:25,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1189967534] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-22 05:57:25,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-22 05:57:25,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [14, 10] total 27 [2024-11-22 05:57:25,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180171072] [2024-11-22 05:57:25,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 05:57:25,903 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 05:57:25,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 05:57:25,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 05:57:25,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=588, Unknown=0, NotChecked=0, Total=702 [2024-11-22 05:57:25,904 INFO L87 Difference]: Start difference. First operand 1851 states and 2714 transitions. Second operand has 7 states, 7 states have (on average 51.142857142857146) internal successors, (358), 7 states have internal predecessors, (358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:57:26,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 05:57:26,053 INFO L93 Difference]: Finished difference Result 4032 states and 5950 transitions. [2024-11-22 05:57:26,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 05:57:26,054 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 51.142857142857146) internal successors, (358), 7 states have internal predecessors, (358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 393 [2024-11-22 05:57:26,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 05:57:26,057 INFO L225 Difference]: With dead ends: 4032 [2024-11-22 05:57:26,057 INFO L226 Difference]: Without dead ends: 2602 [2024-11-22 05:57:26,059 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 802 GetRequests, 775 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 186 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=126, Invalid=630, Unknown=0, NotChecked=0, Total=756 [2024-11-22 05:57:26,059 INFO L432 NwaCegarLoop]: 866 mSDtfsCounter, 450 mSDsluCounter, 3643 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 450 SdHoareTripleChecker+Valid, 4509 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 05:57:26,059 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [450 Valid, 4509 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 05:57:26,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2602 states. [2024-11-22 05:57:26,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2602 to 2285. [2024-11-22 05:57:26,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2285 states, 2284 states have (on average 1.4719789842381787) internal successors, (3362), 2284 states have internal predecessors, (3362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:57:26,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2285 states to 2285 states and 3362 transitions. [2024-11-22 05:57:26,090 INFO L78 Accepts]: Start accepts. Automaton has 2285 states and 3362 transitions. Word has length 393 [2024-11-22 05:57:26,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 05:57:26,091 INFO L471 AbstractCegarLoop]: Abstraction has 2285 states and 3362 transitions. [2024-11-22 05:57:26,091 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 51.142857142857146) internal successors, (358), 7 states have internal predecessors, (358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:57:26,091 INFO L276 IsEmpty]: Start isEmpty. Operand 2285 states and 3362 transitions. [2024-11-22 05:57:26,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 395 [2024-11-22 05:57:26,093 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 05:57:26,093 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 05:57:26,106 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-22 05:57:26,293 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-22 05:57:26,294 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 05:57:26,294 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 05:57:26,294 INFO L85 PathProgramCache]: Analyzing trace with hash -1225019638, now seen corresponding path program 1 times [2024-11-22 05:57:26,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 05:57:26,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065071033] [2024-11-22 05:57:26,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 05:57:26,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 05:57:28,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 05:57:31,118 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 131 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 05:57:31,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 05:57:31,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065071033] [2024-11-22 05:57:31,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2065071033] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 05:57:31,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [892953324] [2024-11-22 05:57:31,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 05:57:31,118 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 05:57:31,118 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 05:57:31,120 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 05:57:31,121 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-22 05:57:31,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 05:57:31,961 INFO L255 TraceCheckSpWp]: Trace formula consists of 2486 conjuncts, 104 conjuncts are in the unsatisfiable core [2024-11-22 05:57:31,970 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 05:57:32,658 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 43 proven. 152 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 05:57:32,658 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 05:57:33,577 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 43 proven. 152 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 05:57:33,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [892953324] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 05:57:33,578 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 05:57:33,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 16, 12] total 37 [2024-11-22 05:57:33,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984224750] [2024-11-22 05:57:33,578 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 05:57:33,579 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2024-11-22 05:57:33,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 05:57:33,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2024-11-22 05:57:33,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=164, Invalid=1168, Unknown=0, NotChecked=0, Total=1332 [2024-11-22 05:57:33,580 INFO L87 Difference]: Start difference. First operand 2285 states and 3362 transitions. Second operand has 37 states, 37 states have (on average 30.054054054054053) internal successors, (1112), 37 states have internal predecessors, (1112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:57:37,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 05:57:37,493 INFO L93 Difference]: Finished difference Result 8129 states and 11984 transitions. [2024-11-22 05:57:37,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 114 states. [2024-11-22 05:57:37,494 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 37 states have (on average 30.054054054054053) internal successors, (1112), 37 states have internal predecessors, (1112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 394 [2024-11-22 05:57:37,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 05:57:37,503 INFO L225 Difference]: With dead ends: 8129 [2024-11-22 05:57:37,504 INFO L226 Difference]: Without dead ends: 6265 [2024-11-22 05:57:37,513 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 913 GetRequests, 767 SyntacticMatches, 0 SemanticMatches, 146 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7253 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=2778, Invalid=18978, Unknown=0, NotChecked=0, Total=21756 [2024-11-22 05:57:37,513 INFO L432 NwaCegarLoop]: 880 mSDtfsCounter, 15973 mSDsluCounter, 18624 mSDsCounter, 0 mSdLazyCounter, 3856 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15973 SdHoareTripleChecker+Valid, 19504 SdHoareTripleChecker+Invalid, 3875 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 3856 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-22 05:57:37,514 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15973 Valid, 19504 Invalid, 3875 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 3856 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-22 05:57:37,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6265 states. [2024-11-22 05:57:37,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6265 to 4143. [2024-11-22 05:57:37,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4143 states, 4142 states have (on average 1.4760985031385805) internal successors, (6114), 4142 states have internal predecessors, (6114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:57:37,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4143 states to 4143 states and 6114 transitions. [2024-11-22 05:57:37,567 INFO L78 Accepts]: Start accepts. Automaton has 4143 states and 6114 transitions. Word has length 394 [2024-11-22 05:57:37,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 05:57:37,568 INFO L471 AbstractCegarLoop]: Abstraction has 4143 states and 6114 transitions. [2024-11-22 05:57:37,568 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 30.054054054054053) internal successors, (1112), 37 states have internal predecessors, (1112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 05:57:37,568 INFO L276 IsEmpty]: Start isEmpty. Operand 4143 states and 6114 transitions. [2024-11-22 05:57:37,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 397 [2024-11-22 05:57:37,571 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 05:57:37,571 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 05:57:37,585 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-22 05:57:37,771 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 05:57:37,772 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 05:57:37,772 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 05:57:37,772 INFO L85 PathProgramCache]: Analyzing trace with hash -754939923, now seen corresponding path program 1 times [2024-11-22 05:57:37,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 05:57:37,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567378958] [2024-11-22 05:57:37,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 05:57:37,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms